Meteor Observation Bulletin No. 225 www.rmob.org April 2012 1. GLOBAL OBSERVATIONS Observer: Michael Boschat Location: Halifax, Canada (63 36' W, 44 39' N, 58 meters above sea level) Listening Frequency: 67.24 MHz (40.6715 MHz) Receiver: Icom R 0 Antenna: resonant dipole Antenna Direction: Horizontally polarized with lobes in E-W plane, elev 0 deg Filter: high-Q (Q at least 300) bandpass filter between antenna & receiver. Listening Mode: CW Recording method: listening by ear Number of meteors heard in one hour interval | April 2012 UT | 19 20 21 22 ---+------------------ 09h| - 10 9 - 10 | - 11 20 22 11 | 8 - 14 12 12 | 15 - 12 10 13 | 10 8 6 11 14 | 13 7 5 - ----+------------------ UT | 19 20 21 22 April 2012 Notes: . Major Canadian TV stations are now digital . no corrections for radiant position made to the counts. . ( - ) means no observations made. Mike Boschat --------------------------------------------------------------------------- Observer: Jeff Brower Location: Kelowna, British Columbia, Canada (49 51' N, 119 34' W) at 427 meters Receiver: ICOM PRC 000 CW mode Sensitivity: 0.32 uV for 10 dB S/N for CW mode Antenna: 5 element log Periodic az 90 deg (East) Frequency: 83.240 MHz Transmitter: Multiple 100 kW Computer: Linux - WINE Data sampling system: Spectrum Lab counting echoes Meteor reflections/hour | April 2012 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+------------------------------------------------------------ 0h| 14 10 17 9 9 6 10 10 15 12 20 22 17 50 1 | 21 12 8 13 15 13 12 17 14 8 24 12 14 13 2 | 16 7 9 14 11 17 24 12 15 21 25 23 21 17 3 | 21 12 15 19 15 15 19 19 24 29 22 18 20 24 4 | 15 18 18 15 16 13 26 20 19 0 30 20 14 24 5 | 22 13 25 19 11 22 32 31 24 32 28 16 27 27 6 | 26 30 33 29 29 29 38 34 34 54 35 27 34 17 7 | 36 33 33 30 37 38 35 40 33 39 46 36 38 38 8 | 23 32 34 37 25 47 41 28 16 45 42 33 38 29 9 | 31 31 33 14 16 30 42 27 29 33 41 25 23 28 10 | 23 31 29 20 31 21 25 29 17 41 25 29 31 28 11 | 21 23 27 25 23 22 17 24 24 31 26 37 29 35 12 | 22 26 28 18 22 28 36 35 25 24 23 27 41 33 13 | 25 25 18 18 35 32 35 26 27 26 25 36 37 28 14 | 31 24 20 30 28 34 38 38 24 27 29 26 35 21 15 | 43 30 30 27 37 52 47 32 42 47 38 46 31 35 16 | 36 24 40 13 41 51 51 38 41 30 47 37 39 38 17 | 30 43 39 33 44 43 31 31 26 41 39 50 42 18 | 28 24 47 38 28 35 27 23 40 27 41 43 52 19 | 15 23 31 33 26 31 28 25 39 34 43 46 28 20 | 32 29 28 25 24 18 29 15 32 30 31 50 29 21 | 48 25 18 20 23 18 26 12 32 37 36 31 48 23 22 | 31 18 21 21 12 20 23 18 28 26 31 24 34 23 23 | 13 14 14 10 11 11 12 14 20 21 21 17 25 10 ---+------------------------------------------------------------ UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2012 | April 2012 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+------------------------------------------------------------ 0h| 14 15 21 16 16 7 12 13 25 1 | 17 21 16 14 21 14 2 10 12 14 2 | 7 15 17 21 19 16 10 14 18 15 3 | 13 19 24 11 22 30 11 14 22 12 4 | 18 30 31 16 28 21 16 16 19 20 5 | 19 37 25 19 21 14 15 17 32 25 6 | 32 33 30 44 35 41 19 20 31 36 7 | 33 28 43 42 30 32 22 27 24 30 8 | 26 44 41 57 43 41 18 19 18 47 9 | 22 31 42 44 37 37 27 23 33 44 10 | 22 34 39 37 35 36 16 22 27 21 11 | 23 29 36 37 28 34 24 24 32 36 12 | 41 32 38 49 33 36 30 25 48 35 13 | 21 38 31 48 41 37 40 25 27 45 14 | 22 31 31 65 51 36 22 26 41 50 15 | 17 33 52 62 64 52 48 28 59 50 16 | 38 40 59 66 44 48 35 41 52 46 17 | 53 49 72 56 53 51 28 40 71 40 18 | 32 39 49 66 42 42 35 22 65 39 19 | 30 44 46 48 45 32 21 31 50 37 20 | 17 39 34 50 43 31 43 33 42 36 21 | 28 42 37 33 39 21 32 34 25 29 22 | 17 20 29 19 19 19 21 20 17 11 23 | 14 12 15 14 19 12 17 29 19 10 ---+------------------------------------------------------------ UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2012 Notes: . Bad month for radio meteors. I jumped frequency for 61.240 thinking I could cope with an occasional wandering carrier from the neighbour. It got worse so this data is all form 83.240 MHz. If I find time I'll throw a loop up and try to find a better frequency for radio echoes. . - = System Down . Es = Sporadic E . Local time is PST or UT-8 Jeff Brower NK0L ---------------------------------------------------------------------- Observer: Willy Camps Location: Tessenderlo, Belgium (5 06' E, 51 05' N) Frequency: 49.990 MHz OT1KZG Transmitter: VVS beacon at Astrolab IRIS, Ypres, Belgium (2 54' 45" E, 50 49' 03" N), 50 W, carrier (no modulation), LHCP, upward beaming Antenna: 2 element quad in diamond shape, az 87 deg, elev 45 deg Receiver: AR8600 Mark2 SE Computer: Notebook Observing method: Spectrumlab, Colorgramme for RMOB v 2.3 | April 2012 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 19 14 13 14 15 8 17 13 13 16 15 24 17 12 16 1 | 12 13 13 15 19 14 15 15 24 13 15 20 26 10 16 2 | 6 14 12 13 17 11 12 11 15 13 19 15 23 9 10 3 | 7 15 10 12 13 7 18 11 13 16 12 12 17 8 14 4 | 7 5 12 9 9 7 10 5 7 14 11 10 9 9 12 5 | 8 4 8 12 7 13 8 12 8 15 16 14 12 10 7 6 | 5 10 11 10 12 6 11 11 6 14 13 7 12 13 11 7 | 6 12 5 10 9 11 11 15 17 13 10 15 6 20 11 8 | 16 9 4 4 13 9 16 11 15 8 11 9 16 8 13 9 | 10 8 6 11 12 15 9 10 14 13 14 11 14 9 6 10 | 6 10 8 10 8 14 15 11 15 15 17 14 13 5 14 11 | 9 13 10 11 9 7 11 9 14 17 12 12 8 10 9 12 | 11 2 5 11 7 12 6 9 9 17 16 15 5 3 6 13 | 10 6 7 5 4 9 8 7 10 15 3 8 8 3 5 14 | 5 3 5 6 1 4 9 8 6 7 8 3 13 3 5 15 | 4 4 3 9 4 5 4 3 11 11 5 5 4 5 7 16 | 1 4 4 4 5 4 5 5 2 10 9 3 8 5 6 17 | 4 6 7 7 3 7 5 7 7 4 6 4 6 6 7 18 | 7 4 7 3 12 9 6 8 6 9 4 4 4 11 7 19 | 3 6 7 6 7 9 4 12 7 11 9 5 8 8 5 20 | 4 6 12 12 10 10 6 8 11 6 7 8 9 5 5 21 | 9 11 10 13 7 7 10 9 12 13 7 6 9 9 6 22 | 10 16 16 15 9 11 12 7 15 14 11 17 10 11 13 23 | 12 17 15 18 9 10 17 18 21 13 24 22 13 13 20 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2012 | April 2012 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 19 20 22 22 20 24 41 28 22 26 24 22 16 23 23 1 | 14 22 18 21 16 26 33 22 21 29 18 26 17 22 29 2 | 13 17 17 18 20 24 26 23 16 20 21 18 18 15 19 3 | 14 14 10 14 18 24 28 16 17 19 16 14 21 14 14 4 | 11 9 8 17 16 23 23 19 17 22 17 12 16 16 17 5 | 10 12 12 14 15 23 27 21 20 23 15 11 11 22 16 6 | 9 17 11 10 17 19 31 16 22 22 17 18 27 16 18 7 | 16 16 15 19 16 26 35 22 20 30 14 15 22 19 16 8 | 10 7 10 20 20 21 30 14 17 25 15 15 19 17 16 9 | 11 7 10 10 20 18 16 11 25 23 12 22 12 25 21 10 | 11 10 7 12 15 18 14 18 21 16 15 17 17 27 18 11 | 8 11 14 3 8 12 15 11 12 17 12 13 15 11 19 12 | 13 10 4 8 14 14 9 13 19 13 13 14 15 13 10 13 | 6 13 8 6 13 14 13 6 9 16 11 9 10 14 12 14 | 4 5 7 6 5 11 9 8 10 11 11 13 10 9 8 15 | 5 7 3 6 8 10 9 7 8 9 7 8 9 8 4 16 | 4 5 8 7 6 3 8 2 11 10 5 6 7 7 11 17 | 3 4 7 6 6 4 9 7 8 16 5 5 4 5 6 18 | 8 8 7 12 10 3 7 3 7 5 7 11 3 4 11 19 | 7 8 9 4 10 6 7 4 5 10 7 12 7 9 7 20 | 4 11 10 8 7 11 6 12 10 8 8 6 13 12 7 21 | 10 6 11 6 6 7 12 12 14 13 15 14 17 15 8 22 | 6 15 21 16 12 29 18 16 25 14 21 10 14 14 11 23 | 11 17 21 16 26 23 23 9 27 19 28 20 20 15 20 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2012 Note: . modification to transmitter reflective grid on April 19 Willy Camps ---------------------------------------------------------------------- Observer: Johan Coussens Location: Harelbeke, Belgium (3 20' E, 50 51' N) Frequency: 49.990 MHz OT1KZG Transmitter: VVS beacon at Astrolab IRIS, Ypres, Belgium (2 54' 45" E, 50 49' 03" N), 50 W, carrier (no modulation), LHCP, upward beaming Antenna: crossed dipole RHCP, elev 90 deg Receiver: HRO MRX-50 Computer: Pentium 3 - 1.7 GHz desktop Observing method: Spectrumlab, Colorgramme RMOB Lab v 2.3 | April 2012 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 19 12 23 14 9 18 1 | 25 22 14 18 7 15 2 | 30 19 14 10 6 15 3 | 26 14 15 6 14 23 4 | 16 10 16 12 5 14 5 | 12 11 9 8 9 12 6 | 10 13 4 9 9 9 7 | 9 10 3 3 6 10 8 | 4 5 6 7 10 8 9 | 5 2 11 5 6 14 10 | 12 7 10 7 8 11 11 | 7 6 31 5 0 12 12 | 14 11 30 9 4 6 13 | 14 17 5 5 5 8 14 | 7 12 13 6 3 11 15 | 7 4 12 7 4 2 16 | 5 4 2 9 0 4 17 | 4 12 4 3 3 2 18 | 11 16 4 6 4 1 19 | 9 5 6 2 3 2 20 | 9 10 8 7 10 2 21 | 11 10 6 8 4 2 22 | 13 16 9 4 9 2 23 | 7 12 9 9 8 5 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2012 | April 2012 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 4 10 20 8 18 26 43 32 41 23 12 27 28 27 16 1 | 1 6 12 15 17 29 39 37 21 14 22 27 27 23 19 2 | 5 8 12 14 14 15 46 23 29 19 24 26 15 19 16 3 | 7 14 12 24 19 16 30 23 20 18 19 19 15 26 22 4 | 8 11 15 15 24 27 41 17 23 15 28 26 19 34 28 5 | 16 15 12 14 11 21 38 21 22 22 24 25 11 25 26 6 | 9 7 12 11 20 19 25 20 15 12 20 20 20 40 32 7 | 16 6 10 15 20 10 28 12 17 13 20 14 20 29 27 8 | 6 4 9 12 9 8 6 7 9 5 15 5 14 19 20 9 | 12 4 2 4 14 2 6 4 8 14 14 9 14 20 14 10 | 10 3 4 10 16 10 11 7 8 13 13 9 10 24 10 11 | 11 7 8 10 20 16 8 7 6 7 6 6 20 12 9 12 | 6 4 10 9 8 14 14 10 7 11 13 10 27 15 7 13 | 9 8 12 10 16 19 26 11 6 14 15 10 23 7 4 14 | 8 9 2 14 9 12 20 8 1 18 15 7 20 8 6 15 | 5 5 9 14 4 11 11 4 7 6 8 6 9 8 27 16 | 2 5 6 11 13 7 4 2 5 9 5 4 11 7 7 17 | 1 5 12 6 10 11 8 3 6 4 7 9 4 8 5 18 | 2 8 6 4 2 13 9 5 4 11 6 10 8 11 3 19 | 12 3 6 6 5 8 8 5 5 9 2 8 9 13 39 20 | 0 9 1 5 6 11 7 8 9 11 18 17 11 16 16 21 | 2 13 9 12 9 10 18 20 19 15 20 19 18 17 16 22 | 2 12 13 19 6 21 15 20 15 22 22 16 18 15 24 23 | 3 17 20 17 27 30 19 24 18 13 23 22 22 16 31 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2012 Johan Coussens ---------------------------------------------------------------------- Observer: Gaspard De Wilde ON4ZK Location: Dessel, Belgium (5 06' E, 51 14' N) Frequency: 49.990 MHz OT1KZG Transmitter: VVS beacon at Astrolab IRIS, Ypres, Belgium (2 54' 45" E, 50 49' 03" N), 50 W, carrier (no modulation), LHCP, upward beaming Antenna: crossed dipole RHCP, elev 45 deg, azimuth 95 deg (W) Receiver and antenna home made Observing method: automated setup, 100 samples/second, 8 bit resolution. differential measurement for local noise reduction. [Time and details of all individual meteor reflections are stored on file in the Ghent University format (Prometeos), and are available for further analysis]. Raw counts of reflections with a maximum amplitude >=40 during one hour interval starting at UT: | April 2012 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 21 17 20 17 21 20 25 21 12 28 14 27 22 11 25 1 | 27 25 21 18 16 13 28 26 37 22 16 11 34 15 22 2 | 7 38 15 17 23 20 18 13 19 19 19 20 19 22 24 3 | 12 21 25 18 20 13 23 17 16 28 13 23 26 19 25 4 | 12 18 21 13 12 13 14 12 17 25 15 19 20 14 18 5 | 25 19 14 15 18 24 19 17 11 34 16 29 18 16 15 6 | 19 29 26 22 23 14 19 17 17 45 24 17 27 37 22 7 | 17 35 17 25 19 22 23 26 22 27 20 25 17 32 25 8 | 30 30 20 15 21 31 22 26 20 17 24 24 22 21 25 9 | 18 29 17 24 31 27 16 14 28 21 23 44 20 32 26 10 | 26 20 18 17 15 12 19 30 21 16 25 23 17 13 25 11 | 14 25 17 11 10 16 10 11 15 11 17 18 16 16 12 12 | 18 5 14 12 8 9 7 12 14 13 16 12 6 10 11 13 | 12 11 12 8 9 6 11 5 12 6 8 13 6 3 11 14 | 6 5 6 9 3 5 6 6 8 9 10 4 9 5 10 15 | 4 6 5 8 10 3 1 5 9 4 3 1 4 2 8 16 | 2 5 8 5 1 4 7 5 7 6 4 1 11 1 7 17 | 3 9 12 8 2 4 4 10 7 1 4 5 2 4 9 18 | 7 7 8 5 2 6 5 10 5 9 4 1 5 7 13 19 | 5 6 9 7 9 7 5 8 11 6 8 5 5 7 3 20 | 11 8 9 7 13 8 9 10 7 5 11 13 14 4 10 21 | 14 17 11 11 9 16 17 12 11 9 10 9 11 12 10 22 | 17 26 15 16 9 14 14 13 12 15 15 19 20 17 19 23 | 24 22 18 17 12 18 21 20 20 15 21 19 16 21 24 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2012 | April 2012 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 24 27 25 24 29 27 19 21 19 34 29 20 22 1 | 23 25 26 22 30 16 26 22 35 30 33 30 25 2 | 24 20 28 13 30 30 27 20 23 26 29 24 21 3 | 16 19 17 22 33 22 39 24 25 17 28 23 19 4 | 14 22 15 34 32 18 36 16 22 27 18 24 29 5 | 22 23 16 17 46 20 40 31 28 38 26 27 35 6 | 25 28 35 23 34 23 36 32 30 39 29 18 33 7 | 39 27 21 35 42 30 42 27 27 38 25 26 31 8 | 34 27 31 35 46 23 30 36 35 36 25 25 29 9 | 19 26 34 25 17 20 31 34 20 28 45 25 33 10 | 26 21 16 24 20 32 37 18 23 21 24 26 34 11 | 14 19 17 14 14 14 16 18 23 23 26 20 23 12 | 21 16 6 19 12 10 27 14 18 21 31 13 22 13 | 7 15 11 16 9 9 12 12 15 19 22 13 21 14 | 5 8 12 9 6 14 11 5 9 10 10 9 8 15 | 5 15 8 5 6 9 4 3 3 15 16 6 5 16 | 8 7 8 5 2 5 8 5 4 12 10 9 6 17 | 3 4 6 2 3 4 5 6 3 10 4 4 3 18 | 9 14 8 1 2 5 8 4 3 13 2 4 8 19 | 4 9 13 6 5 3 4 4 6 14 5 11 6 20 | 8 10 10 8 4 7 4 6 14 21 13 15 8 21 | 18 12 14 4 7 9 14 5 12 15 16 17 9 22 | 6 27 30 28 8 21 20 13 17 26 18 16 17 23 | 8 21 24 17 16 12 25 21 13 30 13 19 17 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2012 Note: . Manual count of reflections with minimum strength of -54 dB from April 21 onwards. Gaspard De Wilde ---------------------------------------------------------------------- Observer: Franky Dubois Location: Langemark, Belgium (2 55' E, 50 54' N) Frequency: 49.990 MHz OT1KZG Transmitter: VVS beacon at Astrolab IRIS, Ypres, Belgium (2 54' 45" E, 50 49' 03" N), 50 W, carrier (no modulation), LHCP, upward beaming Antenna: vertical dipole and reflector, orthogonal to transmitter Receiver: HRO MRX-50 Computer: Pentium 4 - 1.8 GHz desktop Observing method: Spectrumlab | April 2012 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 38 39 40 33 30 38 40 35 43 31 41 54 39 28 39 1 | 34 35 45 43 45 43 60 39 40 46 49 43 56 45 34 2 | 39 34 31 25 39 40 40 38 41 42 45 41 47 33 42 3 | 40 24 40 33 36 38 41 39 36 28 37 49 45 27 35 4 | 37 24 13 26 27 31 37 32 38 39 30 37 36 25 39 5 | 34 26 26 18 24 31 45 30 28 30 34 32 30 31 35 6 | 28 20 23 24 31 32 31 27 38 32 35 42 42 38 30 7 | 29 26 18 35 35 32 28 27 36 44 39 39 39 37 36 8 | 29 42 31 33 42 43 40 32 26 42 48 40 42 42 37 9 | 20 35 39 36 44 27 38 28 44 40 57 44 29 40 44 10 | 34 26 27 32 40 21 42 29 31 51 41 46 55 38 48 11 | 28 27 30 38 28 40 25 34 30 36 42 44 47 33 37 12 | 23 29 28 28 33 35 30 24 41 41 48 33 37 45 28 13 | 17 22 27 34 22 32 36 24 44 40 45 46 44 23 29 14 | 26 17 18 32 15 21 24 18 27 25 33 24 34 24 35 15 | 10 14 16 24 13 12 12 16 21 25 20 16 23 10 19 16 | 7 9 16 22 12 12 10 13 12 12 21 17 22 9 14 17 | 7 11 9 11 9 12 11 10 13 11 13 6 14 13 15 18 | 8 10 8 14 7 9 5 5 11 10 13 8 5 17 12 19 | 6 12 8 8 14 10 14 25 12 13 15 16 4 16 12 20 | 15 17 13 17 16 8 17 16 22 18 21 19 17 19 16 21 | 15 17 19 33 23 22 16 21 33 24 25 24 34 16 21 22 | 15 24 21 20 28 23 20 16 30 27 34 35 33 31 29 23 | 28 37 31 29 33 33 34 41 37 36 51 32 18 24 33 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2012 | April 2012 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 33 38 62 36 36 45 50 42 53 50 36 42 38 33 34 1 | 35 34 42 46 29 44 41 52 58 46 39 53 40 45 34 2 | 52 46 41 39 41 36 55 66 51 47 43 37 36 43 34 3 | 29 32 30 49 26 42 52 37 62 48 40 39 36 42 38 4 | 36 34 30 35 33 37 52 48 56 39 42 31 49 31 35 5 | 36 41 35 45 42 44 47 51 61 44 41 42 43 27 52 6 | 35 41 41 39 28 32 45 49 62 33 33 52 38 31 42 7 | 31 39 51 48 40 46 57 48 50 55 42 49 58 41 57 8 | 32 41 35 46 49 28 60 48 55 42 50 47 49 44 36 9 | 37 33 40 34 48 28 42 36 52 60 55 45 45 55 40 10 | 34 65 40 32 43 44 39 41 61 37 56 34 33 45 41 11 | 36 62 44 35 39 33 28 36 56 45 44 42 33 28 35 12 | 52 65 31 44 37 41 45 40 48 47 45 34 44 32 25 13 | 42 35 50 58 32 30 37 41 34 35 22 29 32 26 21 14 | 19 43 46 43 26 35 38 30 26 18 26 29 32 19 26 15 | 26 29 16 10 15 21 21 26 23 19 20 21 22 13 20 16 | 9 23 24 31 11 12 17 16 14 24 7 17 22 13 20 17 | 17 11 16 22 11 12 14 10 11 20 12 18 7 10 8 18 | 14 9 16 9 5 12 7 13 14 18 14 9 12 8 7 19 | 7 17 17 11 10 12 10 11 12 31 11 10 10 15 11 20 | 17 17 17 9 20 13 14 16 28 18 14 23 14 15 13 21 | 19 23 19 12 15 15 20 18 28 18 24 16 18 22 21 22 | 20 30 25 18 25 33 25 33 32 27 37 24 24 27 27 23 | 30 51 44 25 36 43 43 32 41 31 35 32 44 35 36 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2012 Franky Dubois --------------------------------------------------------------------------- Observer: Karl-Heinz Gansel Location: Dingden (Germany) 51 46' N, 6 37' E Frequency: 143.05 MHz Graves Antenna: 20-90 MHz T2FD, Az 170 deg, elev 0 deg, listening to direction SSW Receiver: ICOM PCR 1000 preamp CATV LNA Computer: Acer Aspire Revo R3610 Nettop Software: home brewed PHP Script Colorgramme RMOB Lab v 2.3 | April 2012 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 12 7 9 10 5 3 7 2 4 2 4 6 3 3 5 1 | 7 2 10 4 4 7 6 3 11 3 4 4 2 4 4 2 | 13 7 9 5 6 7 4 3 5 7 3 7 4 3 7 3 | 8 6 8 8 7 8 8 6 4 8 6 9 8 13 6 4 | 8 7 9 14 6 3 10 9 8 11 4 7 5 6 8 5 | 12 5 12 5 8 8 8 4 4 6 5 9 6 6 4 6 | 9 3 10 11 5 10 10 3 6 9 15 5 10 10 4 7 | 10 5 12 18 10 6 5 4 10 12 7 11 11 12 6 8 | 12 11 12 8 14 10 2 11 7 6 13 14 8 8 3 9 | 5 11 9 14 12 3 10 6 9 6 14 7 6 8 10 10 | 6 11 14 13 4 8 3 8 15 5 10 8 10 5 12 11 | 6 5 10 12 2 7 6 2 13 4 6 12 6 11 5 12 | 9 11 7 7 13 4 4 3 5 5 3 8 4 8 3 13 | 7 4 8 7 4 9 4 6 5 6 4 9 8 7 8 14 | 6 5 5 6 2 1 5 8 5 10 2 4 8 5 8 15 | 0 3 3 3 2 6 3 7 6 2 5 4 4 3 5 16 | 1 3 3 4 1 4 3 4 1 5 4 3 2 3 5 17 | 3 4 2 1 3 5 2 5 5 1 7 7 5 2 4 18 | 2 4 5 2 4 3 5 1 8 3 2 4 1 2 4 19 | 1 1 3 4 5 2 7 3 1 0 2 2 5 3 3 20 | 6 2 2 3 4 5 5 2 7 2 2 4 3 2 1 21 | 7 7 4 4 5 5 2 7 6 6 6 5 4 0 6 22 | 6 11 3 8 4 5 3 3 7 1 3 5 1 3 4 23 | 10 4 5 9 1 6 2 5 0 3 1 6 5 5 2 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2012 | April 2012 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 1 2 3 6 7 5 8 3 2 1 5 5 7 11 4 1 | 3 2 1 7 5 1 11 15 4 2 5 3 5 10 3 2 | 2 5 7 3 5 3 10 3 9 8 9 6 2 8 6 3 | 6 4 10 5 7 5 13 5 10 7 9 9 15 9 5 4 | 6 5 6 5 7 8 9 9 9 2 6 5 11 21 7 5 | 11 5 7 6 9 10 19 8 8 10 10 15 11 16 4 6 | 7 10 6 7 5 12 7 8 11 5 3 11 9 17 8 7 | 6 9 7 10 12 7 16 9 7 13 3 12 16 0 12 8 | 7 6 6 11 14 10 14 8 7 4 9 12 5 0 8 9 | 9 4 7 4 7 14 10 8 5 7 6 11 5 0 10 10 | 9 3 6 5 3 11 10 5 8 6 5 3 2 0 8 11 | 8 5 8 6 7 6 15 5 10 9 1 9 6 0 8 12 | 6 8 5 6 8 5 8 10 11 8 3 2 9 0 12 13 | 8 5 7 4 9 7 4 6 11 7 6 11 11 0 11 14 | 3 2 9 6 4 7 4 6 5 5 8 9 12 0 15 15 | 6 2 2 4 4 3 4 8 4 5 4 5 14 0 9 16 | 4 4 6 2 5 7 5 3 0 2 3 3 12 9 7 17 | 1 1 4 5 5 1 3 4 1 7 2 2 6 2 11 18 | 2 1 3 1 3 2 3 3 3 2 3 5 10 7 11 19 | 0 2 1 3 1 2 4 4 1 4 3 4 7 6 5 20 | 2 1 1 1 3 6 3 2 3 4 2 3 10 2 6 21 | 2 5 4 3 3 4 7 0 4 1 5 5 8 2 4 22 | 2 3 2 6 3 3 3 3 4 1 3 2 4 3 6 23 | 2 6 4 7 4 3 8 3 2 0 6 3 14 1 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2012 Observer: Karl-Heinz Gansel Location: Dingden (Germany) 51 46' N, 6 37' E Frequency: 77.252 MHz Antenna: 20-90 MHz T2FD, Az 170 deg, elev 0 deg, listening to direction E Receiver: Stabo XT 00 + preamp CATV LNA R2005200P12 Computer: Acer Aspire Revo R3610 Nettop Software: home brewed PHP Script Colorgramme RMOB Lab v 2.3 | April 2012 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 26 19 28 31 39 31 37 45 54 58 59 62 72 46 61 1 | 33 21 27 28 36 27 42 38 43 50 48 45 67 47 62 2 | 20 28 20 27 17 25 39 36 31 57 51 42 56 39 49 3 | 23 21 17 19 25 22 20 33 39 43 40 41 57 40 44 4 | 26 35 17 18 17 21 27 41 45 49 39 53 47 54 48 5 | 22 23 12 23 21 33 44 27 42 52 40 47 52 54 71 6 | 23 16 24 15 17 22 37 28 45 59 42 63 62 49 46 7 | 21 15 16 13 29 18 37 18 39 52 40 48 67 47 37 8 | 22 20 21 20 23 20 28 52 29 58 37 57 59 52 50 9 | 23 26 14 17 23 16 39 31 42 63 48 49 63 55 39 10 | 21 14 17 21 30 13 33 36 47 58 57 58 48 40 46 11 | 24 21 26 23 27 17 48 44 50 49 46 69 58 39 31 12 | 29 26 16 22 21 18 33 31 29 42 39 61 45 56 32 13 | 23 13 22 13 18 21 24 20 35 46 32 39 32 49 23 14 | 10 20 24 12 14 29 25 25 37 32 36 46 40 49 17 15 | 20 17 10 17 12 16 27 28 32 23 25 36 28 27 29 16 | 15 12 17 20 19 19 19 21 17 23 37 22 35 30 24 17 | 18 10 13 12 9 18 19 24 22 17 19 21 24 27 13 18 | 15 14 11 17 17 22 25 21 14 30 20 25 23 26 18 19 | 10 26 7 13 17 14 14 21 22 26 24 20 20 28 28 20 | 23 17 19 15 24 22 18 16 26 27 35 39 30 28 33 21 | 23 15 19 17 19 28 23 20 44 35 43 44 38 42 41 22 | 28 20 27 24 26 25 25 31 53 54 42 61 47 49 30 23 | 22 20 24 30 31 37 31 34 48 56 55 73 58 61 48 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2012 | April 2012 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 48 46 56 53 59 63 87 67 44 51 46 58 38 42 27 1 | 44 54 52 53 49 60 98 59 48 51 51 48 53 48 26 2 | 41 50 49 46 51 62 75 54 53 54 53 58 45 51 41 3 | 55 47 50 41 51 52 92 60 50 55 49 56 39 62 44 4 | 46 73 56 68 47 61 86 59 54 60 52 54 37 76 52 5 | 59 55 58 56 51 72 77 46 63 42 53 42 45 62 40 6 | 56 51 48 56 58 60 62 13 68 40 42 63 43 58 61 7 | 64 53 47 62 58 42 77 8 59 38 60 48 34 63 61 8 | 54 57 56 68 62 46 70 10 49 37 71 51 37 69 59 9 | 46 47 63 62 52 57 66 2 53 39 45 60 48 58 69 10 | 54 61 71 55 54 65 58 7 39 64 51 37 36 49 66 11 | 54 46 62 68 61 50 55 16 41 55 56 43 49 58 47 12 | 55 39 43 38 48 45 38 34 51 42 34 42 35 24 39 13 | 55 49 49 35 42 35 29 32 31 40 32 27 21 33 27 14 | 25 40 36 32 35 27 24 31 28 27 24 28 14 47 19 15 | 29 32 24 26 16 29 29 20 31 21 30 24 15 24 25 16 | 24 21 25 29 28 18 29 23 32 17 21 23 17 31 13 17 | 24 20 22 28 28 22 21 22 31 24 16 25 19 27 20 18 | 23 23 8 26 37 24 24 26 34 23 19 21 23 22 20 19 | 29 24 23 28 33 27 20 36 17 37 21 29 23 16 23 20 | 29 31 37 31 33 37 34 28 32 18 30 16 26 16 28 21 | 40 22 36 36 47 54 45 40 42 31 38 36 34 24 35 22 | 50 48 42 38 59 88 54 47 45 51 51 37 38 29 35 23 | 60 46 48 52 67 90 67 52 56 49 45 42 54 28 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2012 Observer: Karl-Heinz Gansel Location: Dingden (Germany) 51 46' N, 6 37' E Frequency: 46.95 MHz Antenna: 20-90 MHz T2FD, Az 170 deg, elev 0 deg, listening to direction NW Receiver: Stabo XT 00 + preamp CATV LNA R2005200P12 Computer: ASUS Dual AMD 2500 MHz 4GB RAM Software: home brewed PHP Script Colorgramme RMOB Lab v 2.3 | April 2012 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 3 3 7 2 6 5 6 4 5 6 8 9 4 4 2 1 | 4 5 3 0 4 8 3 5 3 4 9 5 7 3 1 2 | 4 5 8 3 7 1 8 4 6 1 2 2 4 3 6 3 | 8 5 9 6 8 2 2 5 3 3 4 8 2 5 4 4 | 5 4 1 6 7 6 6 7 6 6 9 13 11 7 9 5 | 8 6 3 5 13 9 3 5 7 9 14 6 6 9 11 6 | 5 9 12 3 4 10 10 6 5 5 16 8 5 9 5 7 | 10 4 4 5 13 10 7 10 9 5 9 9 7 11 3 8 | 7 11 10 7 8 4 11 7 12 10 7 5 8 7 13 9 | 3 1 6 7 14 8 12 8 9 8 7 10 17 13 10 10 | 2 12 7 8 12 9 6 6 10 17 13 15 10 14 19 11 | 6 4 5 5 20 16 9 5 6 13 17 14 9 15 16 12 | 6 9 11 9 7 5 5 5 7 14 11 10 11 8 9 13 | 11 4 7 3 14 5 5 18 11 6 9 13 7 8 6 14 | 3 6 2 14 7 4 1 5 13 2 5 9 5 6 7 15 | 3 8 4 4 3 5 4 4 5 8 11 11 4 4 8 16 | 3 6 0 1 2 6 8 4 4 7 7 8 5 3 1 17 | 2 0 5 1 3 1 4 3 1 2 3 5 5 2 2 18 | 1 2 3 4 3 2 2 6 3 0 2 2 2 5 2 19 | 2 1 1 0 4 4 1 5 1 0 5 5 2 10 1 20 | 0 0 2 2 0 2 0 2 3 1 3 3 0 3 0 21 | 1 0 4 1 2 5 3 2 2 1 5 3 3 2 3 22 | 3 1 1 3 3 4 6 3 3 6 2 0 2 3 2 23 | 1 4 4 3 3 3 2 3 4 5 3 2 3 4 3 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2012 | April 2012 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 6 6 3 11 3 1 8 3 3 3 7 8 1 8 1 | 6 3 4 7 7 5 4 9 3 5 2 5 2 3 5 2 | 5 6 4 7 11 5 5 7 2 6 8 12 4 3 12 3 | 3 3 3 4 10 6 5 5 8 5 4 7 10 3 9 4 | 9 7 4 8 15 7 14 6 7 5 8 8 11 4 18 5 | 8 3 5 10 11 4 10 18 7 9 6 10 9 12 9 6 | 6 5 5 4 6 11 15 1 4 7 7 5 8 15 9 7 | 12 6 16 6 11 3 15 5 8 4 7 4 6 9 4 8 | 4 8 9 16 7 5 15 6 6 7 7 0 12 7 5 9 | 5 11 6 14 16 4 11 8 3 5 7 13 14 14 4 10 | 7 10 5 15 10 3 13 10 5 4 13 12 13 8 7 11 | 8 10 13 14 8 9 5 7 11 12 5 6 13 10 11 12 | 10 6 9 8 13 7 8 14 2 13 12 7 14 5 9 13 | 4 4 7 14 7 8 11 7 3 7 8 8 13 9 8 14 | 7 5 4 9 3 6 1 7 5 4 3 3 10 2 6 15 | 11 3 8 3 1 5 3 4 2 1 3 3 8 8 2 16 | 7 4 8 2 3 0 4 4 2 6 1 2 4 8 5 17 | 1 2 2 0 2 3 1 0 4 3 3 0 4 1 2 18 | 4 2 2 0 0 4 1 2 2 2 0 1 1 0 2 19 | 0 2 1 1 2 3 3 0 1 1 2 1 4 1 1 20 | 4 2 3 2 0 2 1 1 3 0 3 2 1 0 0 21 | 5 1 2 4 4 1 3 0 3 1 1 0 1 9 1 22 | 3 0 3 1 3 7 2 2 2 2 4 1 2 3 2 23 | 2 4 8 3 4 11 2 0 0 3 4 4 2 1 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2012 Karl-Heinz Gansel ---------------------------------------------------------------------- Observer: Luc Gobin Location: Mechelen, Belgium (4 28' 57" E, 51 00' 44" N) Frequency: 49.990 MHz OT1KZG Transmitter: VVS beacon at Astrolab IRIS, Ypres, Belgium (2 54' 45" E, 50 49' 03" N), 50 W, carrier (no modulation), LHCP, upward beaming Antenna: Diamond HB9CV, elev 37 deg, azimuth 81 deg (W) Receiver: HRO MRX-50 Computer: Compaq portable Observing method: manual count of Speclab recordings | April 2012 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 35 21 33 45 25 21 40 12 20 32 25 40 18 26 33 1 | 29 32 36 26 33 21 49 18 30 38 42 52 20 28 2 | 22 22 31 24 46 35 29 11 21 36 36 38 25 25 3 | 19 21 33 19 42 16 17 29 30 31 29 31 15 28 4 | 22 28 13 27 23 14 10 19 17 26 16 19 20 25 5 | 22 18 8 15 12 19 12 15 12 18 22 27 12 20 6 | 14 11 16 12 17 14 16 4 17 16 14 10 12 17 7 | 8 15 14 11 15 8 21 11 19 13 11 21 25 19 8 | 17 11 11 9 15 12 18 10 7 6 15 24 17 13 9 | 16 8 9 8 15 20 10 7 16 20 15 20 15 12 15 10 | 14 14 8 8 13 14 11 10 9 14 12 13 19 11 21 11 | 7 11 13 13 11 4 8 9 18 8 18 13 12 10 10 12 | 12 8 5 13 7 4 7 13 11 15 16 11 10 11 12 13 | 7 9 11 17 5 9 5 3 14 13 6 9 15 6 4 14 | 7 10 8 6 7 5 7 6 7 12 10 6 15 4 11 15 | 5 7 6 6 3 4 9 2 9 5 5 4 6 7 11 16 | 1 5 4 8 1 4 4 5 5 4 7 3 5 5 6 17 | 3 8 4 6 1 6 5 7 6 4 4 5 5 5 7 18 | 8 3 10 9 8 3 5 9 2 8 4 8 7 4 8 19 | 4 6 8 9 11 10 5 11 7 12 5 8 7 8 6 20 | 10 11 12 14 11 8 11 8 14 7 11 6 11 12 14 21 | 10 9 12 13 12 11 13 10 8 17 16 12 20 14 12 22 | 19 21 20 22 12 35 9 14 18 18 17 19 22 23 23 23 | 22 19 26 25 31 27 21 26 39 33 26 16 23 36 33 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2012 | April 2012 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 17 23 40 40 63 50 49 28 50 69 59 1 | 15 19 32 35 77 61 45 48 48 71 62 2 | 25 25 22 38 57 43 37 52 48 64 71 3 | 32 41 16 31 40 50 49 58 37 60 67 4 | 18 26 17 22 35 49 32 40 20 41 51 5 | 16 26 27 19 34 39 18 20 17 46 46 6 | 26 20 20 16 20 25 21 27 13 33 22 7 | 30 22 24 23 26 29 29 24 28 33 56 8 | 17 15 19 27 12 14 29 29 16 48 51 9 | 16 22 14 16 17 19 36 14 22 27 49 10 | 6 17 10 18 11 28 23 24 27 34 44 11 | 10 13 14 11 12 15 15 21 13 23 18 12 | 7 8 8 6 18 20 21 22 22 22 11 13 | 8 7 6 8 11 20 49 16 6 24 14 | 9 5 6 7 12 8 68 25 6 10 15 | 4 5 6 12 6 6 13 10 14 9 16 | 1 2 6 12 8 9 8 7 10 6 17 | 8 10 6 6 9 6 10 9 5 4 18 | 7 6 11 9 8 2 6 5 11 11 6 6 19 | 3 10 11 6 5 6 6 12 10 15 13 20 | 13 12 8 15 19 16 5 19 12 13 21 | 13 17 10 16 21 14 10 17 28 28 22 | 7 25 15 32 20 23 16 29 28 30 23 | 15 38 33 58 36 48 38 43 58 36 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2012 Luc Gobin ---------------------------------------------------------------------- Observer: Peter Knol Location: Appingedam, Netherlands (6 51' E, 53 19' N) Frequency: 49.970 MHz Transmitter: BIRA beacon Antenna: Turnstile @ 4m from the ground Receiver: Alinco DX70 Computer: ASUS EeePC G4 Observing method: MAnalyzer (A) | April 2012 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 45 53 43 47 55 73 55 43 49 66 48 42 37 1 | 49 58 38 57 38 51 52 45 60 58 63 50 50 2 | 50 56 37 45 46 56 40 39 57 52 39 40 38 3 | 45 59 59 53 48 50 41 44 63 36 47 49 38 4 | 55 44 44 43 39 39 44 48 60 31 53 40 40 5 | 33 43 32 43 35 37 43 46 44 34 35 71 33 6 | 46 45 41 64 39 45 61 51 37 40 66 57 43 7 | 52 37 44 48 50 59 45 51 45 40 47 40 49 8 | 41 33 34 51 47 37 46 40 44 49 43 30 42 9 | 32 45 28 41 41 34 42 40 31 39 45 61 51 10 | 42 27 31 42 43 19 30 32 24 36 27 46 40 11 | 34 33 23 30 31 19 22 23 33 29 31 31 33 12 | 18 21 27 24 29 17 2 20 29 24 35 24 23 13 | 40 15 32 26 34 16 5 30 20 24 32 34 17 14 | 26 21 20 15 19 17 10 20 18 16 29 24 21 15 | 24 13 22 18 18 31 7 12 21 18 27 16 17 16 | 20 13 17 19 30 15 16 19 16 17 14 26 17 17 | 13 14 17 13 17 18 18 20 17 29 21 18 18 18 | 24 21 22 25 25 19 19 23 15 23 13 20 28 19 | 25 17 24 19 22 25 15 28 15 31 19 24 24 20 | 28 23 22 35 33 27 30 31 29 37 22 28 21 | 43 32 29 32 42 31 25 27 27 37 47 41 22 | 45 39 32 44 43 40 46 29 33 55 50 38 23 | 45 25 43 47 61 38 47 33 44 56 52 55 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2012 | April 2012 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 40 22 40 33 49 67 29 52 53 35 58 1 | 43 30 56 47 58 40 54 55 36 53 2 | 41 29 36 59 59 32 45 50 62 39 3 | 30 36 43 63 55 42 56 70 61 49 4 | 51 28 52 76 59 38 67 58 55 86 5 | 38 30 48 34 63 77 53 58 67 62 61 6 | 59 35 41 44 48 61 43 57 53 40 75 7 | 46 55 48 49 10 70 51 33 68 46 56 69 8 | 42 40 43 44 39 51 34 42 61 24 61 58 9 | 46 27 39 37 33 42 44 30 50 24 38 37 10 | 30 22 21 29 24 20 34 24 32 20 41 14 11 | 4 34 26 25 27 25 20 27 23 38 21 50 22 12 | 31 26 23 26 32 24 14 30 20 37 12 18 17 13 | 31 22 20 22 22 39 27 33 31 26 22 35 6 14 | 31 23 15 25 25 24 33 27 20 22 12 15 15 15 | 17 15 18 18 16 32 17 35 23 15 12 21 19 16 | 22 14 13 19 30 27 17 24 18 19 9 17 | 13 15 12 15 24 13 17 10 7 20 15 15 18 | 15 16 10 12 12 19 24 20 24 24 12 14 19 | 24 22 12 24 20 15 24 21 19 16 31 16 20 | 32 35 24 18 30 24 18 28 28 24 31 24 21 | 18 27 21 24 28 32 23 40 37 34 32 22 | 39 31 41 31 48 44 31 40 46 33 42 23 | 40 46 49 28 60 57 45 47 58 48 56 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2012 Peter Knol --------------------------------------------------------------------------- Observer: Mike Otte Location: Pearl City, IL, USA (42 20' N, 90 W) Frequency: 55.2595 MHz Antenna : 5 elem Yagi, az 290 deg, elev 60 deg, mystarband preamplifier Receiver: Alinco DX70 Computer: Compaq 2266 Observing method: Spectrum Lab Colorgramme RMOB Lab v 2.3 Total Counts | April 2012 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h|128 123 148 141 115 145 155 145 148 131 150 127 114 142 128 1 |153 156 155 148 158 156 152 173 160 191 157 152 166 176 254 2 |205 203 207 183 205 210 209 182 207 219 197 216 188 208 202 3 |271 220 241 257 245 234 255 307 244 266 252 236 229 226 203 4 |302 275 314 313 295 302 305 308 330 326 351 321 311 322 230 5 |311 305 337 359 365 363 353 379 346 366 360 332 328 333 275 6 |290 309 375 380 326 341 364 368 343 373 361 324 336 314 332 7 |260 310 355 336 303 378 355 336 356 386 350 327 378 356 311 8 |265 320 314 323 285 372 357 276 328 361 297 319 317 320 258 9 |310 335 340 315 303 370 343 320 340 390 309 348 357 313 325 10 |319 299 303 301 333 361 323 380 309 323 298 321 311 357 371 11 |326 306 322 293 310 361 375 339 342 336 325 363 351 373 390 12 |381 337 324 339 357 343 365 357 338 336 354 348 363 382 391 13 |407 384 366 344 433 384 384 377 408 424 433 435 407 372 423 14 |431 362 385 354 368 372 369 388 431 353 383 362 360 374 412 15 |408 337 313 362 347 359 347 373 347 376 384 376 391 374 344 16 |383 355 339 338 351 344 363 338 336 367 343 348 364 308 365 17 |320 329 289 289 301 300 270 280 294 299 292 325 326 246 260 18 |234 254 275 224 230 249 199 231 241 240 237 254 237 200 209 19 |187 176 184 164 177 159 165 165 179 197 182 169 171 165 142 20 |151 151 166 147 147 144 133 157 159 163 148 151 152 138 127 21 |127 131 131 121 132 152 128 103 121 116 128 132 146 137 139 22 |111 118 133 121 106 104 102 105 137 108 109 108 121 122 118 23 |119 108 122 106 123 129 112 126 119 109 110 114 126 134 112 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2012 | April 2012 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h|128 121 134 118 134 130 139 152 113 101 124 125 146 116 155 1 |142 147 134 126 130 144 158 182 151 120 127 159 166 161 149 2 |188 207 183 168 180 201 213 229 166 182 145 221 215 202 206 3 |219 259 205 218 192 212 271 251 189 211 185 223 238 242 240 4 |315 310 281 260 275 240 321 312 255 280 259 278 287 287 258 5 |308 299 295 312 265 278 365 346 271 308 327 323 349 319 300 6 |333 327 301 318 305 312 336 336 253 301 295 354 332 370 307 7 |324 294 323 290 314 312 350 324 311 316 290 336 349 323 336 8 |337 325 296 279 283 295 311 347 320 280 265 319 315 317 349 9 |359 335 283 304 285 325 305 327 322 308 302 342 307 355 384 10 |314 335 258 285 280 329 382 336 367 324 287 347 378 414 370 11 |340 370 305 312 273 355 364 362 367 404 335 387 410 370 408 12 |360 370 311 336 322 356 412 382 363 152 324 391 405 418 410 13 |371 399 365 385 361 388 404 421 421 14 432 433 417 442 491 14 |352 387 322 375 305 397 390 437 365 122 371 411 424 479 455 15 |337 347 296 333 329 345 369 355 335 345 329 360 389 371 390 16 |324 287 266 286 301 323 309 357 335 371 336 299 299 380 375 17 |268 242 271 268 252 262 265 284 329 340 278 281 233 250 428 18 |204 184 217 185 177 221 221 210 201 209 187 226 189 164 326 19 |163 125 148 156 139 157 169 128 153 171 169 171 159 194 205 20 |135 130 134 144 148 135 136 165 214 175 144 182 179 207 194 21 |105 126 143 125 137 146 129 151 644 133 154 198 177 176 182 22 |104 107 110 116 115 115 124 116 350 130 130 155 125 161 134 23 |115 104 104 106 102 108 118 141 123 101 110 141 149 123 130 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2012 Mike Otte --------------------------------------------------------------------------- Observer: Steve Roush Location: Apache Junction AZ, USA (33 23' N, 111 32' W) Receiver: Alinco DX70 Antenna: 4 element Log Periodic Array, Az 160 deg, elev 15 deg Frequency: 61.239 MHz USB Transmitter: Multiple 100 kW Computer: Dell Dimension Spectrum Lab v2.7 Observing method: Spectrum Lab v2.7 Colorgramme RMOB Lab v 2.3 | April 2012 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 18 4 9 8 16 12 14 16 15 4 9 9 18 6 12 1 | 18 14 12 10 11 11 22 15 13 11 10 11 17 11 11 2 | 14 23 15 10 16 21 15 10 13 16 11 13 13 15 17 3 | 17 25 12 18 25 19 23 22 27 15 12 23 32 20 25 4 | 22 27 21 27 22 29 28 23 23 30 20 20 22 25 26 5 | 31 17 20 27 24 33 27 35 23 16 28 22 16 25 22 6 | 16 22 18 19 27 19 10 22 10 10 23 15 20 12 13 7 | 13 28 15 18 23 22 21 27 20 18 25 20 34 23 15 8 | 21 25 25 24 38 35 26 26 24 24 42 21 29 24 35 9 | 31 35 22 30 32 50 38 39 27 24 31 27 41 30 39 10 | 34 28 40 38 34 42 37 37 18 32 28 38 33 23 36 11 | 31 30 23 33 36 43 44 32 26 27 26 34 41 27 57 12 | 34 26 30 38 27 37 29 34 24 30 42 27 51 42 38 13 | 36 38 47 28 33 41 34 53 45 35 50 48 53 33 42 14 | 31 35 35 31 40 43 53 42 38 46 51 41 49 56 19 15 | 33 40 33 24 34 41 21 38 24 22 26 37 26 41 28 16 | 22 22 20 20 19 28 19 23 13 24 29 24 23 52 19 17 | 15 17 17 12 15 15 16 24 14 16 22 13 19 13 5 18 | 14 13 27 16 18 11 22 18 12 14 13 21 21 17 19 19 | 22 17 13 22 22 17 20 33 16 24 18 14 19 19 15 20 | 32 16 18 20 21 17 2 21 19 27 21 25 16 22 19 21 | 16 21 20 23 23 18 24 34 26 19 24 36 20 28 19 22 | 19 15 15 9 11 26 24 18 21 22 16 29 16 29 20 23 | 20 15 9 12 16 14 15 16 12 12 8 11 12 10 10 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2012 | April 2012 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 7 11 12 14 15 9 8 9 14 19 21 11 11 12 19 1 | 12 12 18 13 12 15 9 12 16 21 14 12 10 10 11 2 | 16 18 19 29 29 24 5 19 18 27 14 23 17 17 11 3 | 18 16 17 22 25 41 19 22 25 23 27 32 21 28 14 4 | 19 18 29 23 29 43 18 29 19 42 35 28 24 37 34 5 | 23 28 21 32 24 28 26 31 33 31 6 39 26 24 23 6 | 18 10 19 17 23 32 17 34 31 20 23 29 26 25 34 7 | 21 28 22 28 31 17 39 30 30 35 22 34 27 30 37 8 | 32 37 44 30 38 37 46 33 42 71 33 39 34 41 35 9 | 36 46 47 46 55 62 47 32 66 50 37 27 36 32 44 10 | 35 40 43 46 55 52 40 46 51 45 35 49 27 45 44 11 | 38 57 45 46 52 54 53 45 49 47 58 34 50 49 45 12 | 30 39 29 45 39 54 39 62 48 56 65 56 52 60 58 13 | 28 38 50 56 54 55 46 65 57 54 58 52 62 49 56 14 | 34 46 41 50 55 46 40 45 67 56 54 47 51 60 36 15 | 28 45 41 31 30 50 36 25 48 46 44 41 36 41 49 16 | 21 37 22 22 24 29 36 31 23 28 31 34 27 37 22 17 | 16 15 22 16 16 31 31 19 19 28 13 28 30 25 26 18 | 22 26 14 28 22 18 20 21 21 21 26 31 23 30 31 19 | 24 21 19 15 31 18 29 24 23 36 28 25 23 23 32 20 | 29 27 30 19 29 27 23 34 21 31 30 26 29 27 33 21 | 16 21 12 30 34 24 36 32 29 26 35 25 31 35 37 22 | 15 22 17 29 32 13 29 33 24 33 19 17 32 27 23 | 14 17 8 18 14 12 17 18 31 21 26 16 12 19 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2012 Steve Roush --------------------------------------------------------------------------- Observer: Wayne Sanders Location: Prince George BC (53 58' N 123 05' W elevation 666 meters) Receiver: ICOM PCR 000 CW mode Sensitivity: 0.32 uV for 10 dB S/N for CW mode (factory spec) Antenna: Full Wave Horizontal Loop 9 foot high Frequency: 61.240 MHz Transmitter: Multiple 100 kW Computer: Dell 3.2 GHz 2GB Ram Windows XP SP 3 Data sampling system: Spectrum Lab Meteor reflections/hour | April 2012 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 33 14 57 75 72 68 75 47 53 39 55 56 51 63 40 1 | 29 16 50 57 39 63 57 23 46 49 58 61 53 47 36 2 | 35 20 70 81 35 67 60 47 54 55 69 80 46 38 36 3 | 16 31 77 68 46 70 88 58 48 48 87 86 157 61 35 4 | 43 50 89 92 68 90 80 77 65 54 83 86 66 94 67 5 | 61 65 124 144 94 106 125 101 91 115 118 105 101 122 76 6 |166 115 153 181 145 178 127 131 145 155 151 169 182 87 7 |198 169 204 214 156 172 184 136 176 195 178 170 217 104 8 |229 188 189 215 179 208 216 166 197 195 176 185 219 109 9 |202 219 205 210 142 212 184 230 181 211 220 197 180 223 128 10 |216 208 211 208 171 218 209 234 178 198 226 211 206 239 129 11 |215 203 217 187 177 238 191 245 203 212 224 237 208 232 134 12 |205 214 176 200 145 223 173 257 195 211 197 220 197 238 175 13 |222 177 176 187 144 189 214 248 211 201 205 221 172 203 170 14 |232 224 199 216 198 196 224 242 182 217 206 242 161 202 205 15 |262 214 268 221 230 223 244 268 216 259 248 224 241 220 214 16 |264 245 256 233 247 255 203 228 220 243 297 255 212 252 205 17 |241 212 231 212 247 214 192 240 198 259 245 231 210 275 193 18 |179 198 223 234 237 189 198 183 195 225 217 220 222 261 167 19 |169 174 212 205 176 156 170 120 186 184 225 200 189 209 165 20 | 83 182 162 182 184 138 124 129 141 184 194 194 142 205 173 21 | 75 143 125 147 138 139 104 108 126 147 170 190 134 146 132 22 | 33 101 114 126 106 119 92 88 108 127 151 143 107 82 104 23 | 32 74 81 83 69 81 52 59 70 92 102 82 67 55 55 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2012 | April 2012 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 50 29 43 56 65 53 53 88 38 53 54 68 68 22 45 1 | 66 29 41 58 58 51 64 76 61 43 44 62 55 31 47 2 | 58 59 47 64 68 56 67 77 35 39 53 66 68 74 68 3 | 43 82 65 70 74 74 86 85 73 56 55 78 78 52 71 4 | 59 92 58 105 85 79 83 133 74 120 71 91 98 99 109 5 | 74 138 55 121 112 104 116 137 115 127 77 124 125 102 115 6 | 88 161 95 153 162 147 175 158 180 167 143 165 161 136 156 7 |112 200 167 200 201 193 222 191 188 209 182 138 177 183 182 8 |116 209 191 188 232 215 221 261 196 210 207 192 163 180 189 9 |130 228 205 222 228 230 243 240 201 228 217 209 197 179 207 10 |127 205 250 218 219 254 254 225 193 193 232 207 178 154 219 11 |143 177 239 224 227 245 254 232 210 242 244 233 210 184 167 12 |136 197 241 210 194 216 264 262 211 222 260 230 241 254 197 13 |148 218 225 247 258 227 257 265 266 238 271 276 256 230 231 14 |137 229 280 283 248 301 291 114 300 300 293 282 269 271 226 15 |154 250 300 314 272 296 253 268 293 272 304 326 254 313 265 16 |154 236 268 315 295 294 292 292 338 274 290 363 175 306 252 17 |156 226 213 255 253 263 303 303 299 218 273 329 208 275 249 18 |149 198 189 243 241 262 310 263 284 213 284 333 194 216 258 19 |169 199 199 195 259 222 294 210 242 175 193 287 189 231 225 20 |136 153 151 177 187 197 239 174 202 102 230 281 124 189 217 21 |131 129 149 146 142 190 179 133 148 128 204 231 103 167 184 22 | 87 121 118 93 133 121 154 75 101 125 162 181 75 135 132 23 | 68 65 84 74 90 76 118 59 81 85 81 87 42 83 86 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2012 Notes: - = System Down Es = Sporadic E Wayne Sanders --------------------------------------------------------------------------- Observer: Ivan Sergey Location: private astronomical observatory close to Molodechno, Belarus (54 16' N, 26 44 E) Frequency: 88.6 Mhz Transmitter Location: FM-radio station in Spain, France (95.8 kW Mulhouse/ Belvedere), Antenna: 5 element Yagi Azimuth 270 deg, elevation 5 deg Receiver: an automobile radio tape recorder "PIONER", 2 columns "Maxxstro" for amplification of a signal Observing method: the signal acts on a sound card computer P-II (360 MHz) Software MetAn 1.05 Data sampling system: calculation of number of signals is carried out at by visual viewing all kept screenshots. | April 2012 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 21 14 15 12 10 9 11 11 13 19 10 20 6 29 6 1 | 14 16 10 10 11 9 15 15 7 11 7 20 6 23 3 2 | 24 9 12 10 8 8 12 19 11 11 12 19 3 17 2 3 | 16 9 8 7 10 13 10 14 7 11 16 16 5 17 5 4 | 18 10 10 13 6 18 7 18 11 12 13 18 11 12 22 5 | 13 21 13 14 3 15 15 16 16 14 17 9 8 23 22 6 | 14 2 9 13 14 21 13 17 19 11 13 22 21 21 30 7 | 13 21 22 18 12 28 29 12 7 23 12 23 39 42 8 | 12 12 16 10 17 20 27 16 16 17 34 16 23 26 9 | 20 13 7 12 20 26 34 5 19 15 23 16 31 28 10 | 19 12 12 10 25 26 32 23 13 15 23 13 9 25 11 | 13 9 17 11 18 25 18 12 15 10 18 17 4 10 12 | 24 8 8 11 12 18 15 5 14 13 21 37 3 21 13 | 16 7 3 6 4 17 17 12 19 22 4 9 4 14 14 | 14 4 5 3 13 9 14 6 5 17 6 12 6 17 15 | 6 3 17 2 11 4 11 4 6 4 5 6 1 9 16 | 10 6 4 4 7 4 4 2 8 9 8 5 1 17 17 | 10 4 4 4 2 8 29 9 11 5 4 11 6 15 18 | 6 1 4 8 5 5 9 9 9 1 8 9 9 4 11 19 | 12 1 4 6 7 8 10 10 5 6 8 6 10 2 11 20 | 13 11 16 3 7 12 14 15 5 10 11 6 11 3 14 21 | 10 5 10 8 19 19 16 14 7 6 8 12 15 3 9 22 | 12 8 11 9 10 24 23 9 22 14 9 13 25 1 15 23 | 18 11 10 4 14 20 14 9 13 16 16 5 28 2 18 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2012 | April 2012 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 22 26 16 21 25 31 11 21 13 11 26 18 26 21 31 1 | 19 31 14 24 28 22 19 34 7 20 24 22 20 24 30 2 | 21 24 17 26 18 29 15 32 19 24 37 12 23 35 45 3 | 12 23 6 14 21 28 23 26 11 18 17 15 25 34 53 4 | 17 27 13 16 31 10 21 22 17 36 37 12 25 53 58 5 | 32 30 20 35 17 38 17 27 36 26 32 10 6 62 52 6 | 20 22 24 14 32 30 23 27 27 30 42 10 22 66 61 7 | 35 24 19 26 19 31 23 13 21 40 42 19 55 46 61 8 | 24 27 18 14 12 30 36 28 42 33 36 10 50 41 64 9 | 29 23 28 20 19 34 22 54 40 43 46 10 39 33 51 10 | 29 17 18 16 23 26 27 44 30 30 30 12 61 36 61 11 | 19 20 31 9 13 20 9 19 21 30 16 6 32 46 96 12 | 22 11 18 16 16 8 14 39 36 48 6 10 22 30 13 | 11 3 16 33 17 4 28 30 24 6 11 14 30 14 | 10 9 18 14 15 6 8 38 15 6 8 15 14 15 | 6 7 4 13 9 7 13 16 11 2 12 10 11 13 1 16 | 34 7 13 16 7 2 14 35 23 6 20 23 8 16 4 17 | 7 6 7 9 12 8 17 28 22 21 10 4 15 38 14 18 | 8 5 11 8 7 10 20 24 18 14 8 7 18 11 34 19 | 20 7 10 9 12 5 20 20 9 13 11 5 18 14 10 20 | 13 8 14 22 19 16 25 27 16 28 20 15 22 12 17 21 | 9 12 19 18 18 7 24 21 7 15 17 14 10 16 13 22 | 22 10 24 21 27 13 35 20 13 28 28 26 14 15 9 23 | 18 10 22 18 18 16 33 11 12 26 20 18 19 29 11 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2012 Ivan Sergey --------------------------------------------------------------------------- Observer: Andy Smith Location: Tavistock, Devon, UK (50 33' N, 4 08' W) Receiver: 2 x Icom PCR 000 Antenna: 1/2 wave vertical Frequency: 55.250 MHz (& 46.4 MHz from 2011-12-14) Computer: Athlon 64 dual core 2.4GHz, 1 GB RAM, Win XP Pro running SpecLab Observing method: Colorgramme RMOB Lab v 2.3 Automatic counting using Spectrum Lab v2.5 Colorgramme RMOB Lab v 2.3 Sporadic E automatically suppressed from counts! | April 2012 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 75 67 52 74 81 80 84 1 | 82 73 68 109 113 101 104 2 | 94 84 63 144 109 101 115 3 | 86 94 82 130 132 123 94 4 | 96 82 85 128 116 115 117 5 | 80 86 81 125 132 108 83 6 | 77 81 76 115 102 98 121 7 | 73 61 90 140 111 127 95 8 | 53 74 102 155 126 139 92 9 |120 144 135 169 195 166 104 10 |131 135 150 208 210 198 146 11 |140 146 151 194 197 217 153 12 |143 108 212 198 211 151 13 |129 117 180 140 151 132 14 | 96 98 113 118 94 15 | 89 52 85 69 77 16 | 45 54 66 51 24 32 17 | 39 19 68 42 18 35 18 | 18 18 47 20 17 34 19 | 13 18 15 19 22 24 20 | 14 17 21 24 25 17 21 | 19 10 24 22 35 28 22 | 44 16 34 33 31 30 51 23 | 50 39 44 40 44 56 70 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2012 | April 2012 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h|112 94 29 79 62 82 55 54 83 1 |100 89 36 89 75 87 88 76 104 2 |121 117 53 93 84 106 112 102 118 3 |119 107 54 111 60 79 107 101 108 4 | 97 127 54 100 76 85 114 98 88 5 |104 149 42 92 63 102 107 102 122 6 |114 102 40 65 63 66 63 80 128 127 7 |138 111 48 92 91 110 127 141 135 127 8 |132 72 39 96 90 35 111 42 45 117 9 |159 158 138 92 65 89 94 76 111 39 117 10 |156 174 171 140 101 79 131 116 138 143 64 99 11 |162 167 143 67 82 77 119 65 63 99 91 42 12 |142 154 111 36 123 69 127 65 125 17 83 50 13 |135 91 130 84 135 58 31 85 133 32 81 28 14 | 98 68 96 71 85 71 84 85 97 32 79 19 15 | 39 63 36 61 45 55 63 70 59 14 79 25 16 | 38 32 12 85 29 50 41 28 43 39 32 17 | 39 32 12 28 24 29 35 24 20 19 20 18 | 56 32 29 23 17 16 25 21 20 15 12 19 | 38 38 18 29 33 14 17 16 21 16 32 20 | 19 29 27 27 37 12 5 11 23 15 12 28 21 | 38 36 35 37 30 10 13 12 25 19 21 50 22 | 39 43 49 66 62 16 42 54 41 16 22 44 54 23 | 74 69 36 79 33 53 66 19 77 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2012 Andy Smith ---------------------------------------------------------------------- Observer: Chris Steyaert Location: Mol, Belgium (5 07' 15" E, 51 10' 30" N) Frequency: 49.990 MHz OT1KZG Transmitter: VVS beacon at Astrolab IRIS, Ypres, Belgium (2 54' 45" E, 50 49' 03" N), 50 W, carrier (no modulation), LHCP, upward beaming Antenna: Diamond HB9CV, elev 45 deg, azimuth 90 deg (W), below roof cam Receiver: HRO MRX-50 Computer: Toshiba Satellite 1555CDS, Win98 Observing method: manual count of Speclab recordings | April 2012 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 60 54 50 62 49 53 74 52 51 56 56 1 | 56 57 57 56 52 64 64 80 69 53 64 46 52 2 | 57 71 51 65 62 45 60 64 60 50 59 44 58 3 | 52 68 60 50 59 53 69 58 54 53 54 38 51 4 | 49 48 42 48 45 40 60 45 41 49 57 5 | 46 45 31 50 37 37 57 51 38 36 45 6 | 30 33 37 34 35 30 46 25 40 46 39 7 | 28 39 40 39 33 41 49 38 34 45 37 8 | 32 35 23 35 43 35 53 30 41 23 45 9 | 28 38 25 39 50 42 37 57 34 32 42 27 10 | 26 37 26 32 38 37 47 61 39 28 24 27 11 | 27 39 29 34 27 38 34 49 39 20 31 30 12 | 25 32 18 31 37 37 32 35 51 33 33 18 26 13 | 28 31 28 28 31 36 37 42 50 35 31 26 20 26 14 | 18 26 15 28 19 28 33 29 36 40 42 20 29 15 30 15 | 22 18 19 26 22 25 26 35 28 34 24 15 19 17 24 16 | 17 17 12 13 15 15 27 29 21 25 23 8 24 14 20 17 | 15 20 16 24 18 25 21 32 28 15 23 18 11 17 19 18 | 22 17 19 15 25 25 34 23 25 15 10 9 20 29 19 | 25 32 22 21 37 24 26 25 14 20 | 31 25 29 28 25 32 19 29 22 21 | 35 25 43 32 33 39 40 33 38 35 24 25 20 32 22 | 36 43 50 49 35 37 48 51 42 44 37 35 36 29 42 23 | 48 46 48 37 44 49 54 56 40 34 49 33 54 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2012 | April 2012 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 53 69 53 76 88 118 65 70 76 55 73 77 76 69 1 | 65 62 48 63 81 110 73 68 79 74 70 80 98 89 2 | 66 64 56 91 89 118 103 83 52 53 63 84 87 64 3 | 58 40 44 64 89 112 84 72 60 60 62 77 78 89 4 | 53 54 48 77 96 108 85 80 54 69 54 72 69 81 5 | 40 45 43 45 67 84 111 69 73 56 52 55 66 63 69 6 | 38 39 45 29 53 53 79 61 58 52 54 49 58 71 61 7 | 45 47 32 39 51 67 81 73 65 53 51 49 73 81 56 8 | 36 42 38 47 64 49 69 48 43 63 61 41 52 76 55 9 | 40 31 38 32 52 49 50 47 58 52 43 64 55 66 71 10 | 27 44 34 35 55 58 40 49 54 47 57 54 46 61 52 11 | 46 50 41 23 50 51 59 44 41 50 49 46 53 54 56 12 | 43 39 27 33 54 62 46 40 54 52 61 49 58 51 50 13 | 28 45 31 31 41 53 42 34 29 55 45 48 53 43 14 | 19 24 25 27 24 39 34 36 34 32 40 41 45 45 15 | 16 29 20 17 22 42 22 25 21 20 27 31 27 28 28 16 | 18 22 23 21 14 26 26 21 21 25 25 24 29 21 22 17 | 13 12 18 16 15 17 21 18 20 27 21 16 21 18 15 18 | 19 24 12 23 15 15 18 12 23 13 11 28 20 11 20 19 | 12 25 26 16 13 11 26 20 | 20 33 16 21 | 25 32 29 21 27 23 44 31 32 22 46 32 42 33 22 | 18 42 51 26 47 59 45 40 44 37 50 43 45 53 55 23 | 50 54 53 66 63 59 43 62 47 68 56 67 67 75 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2012 Chris Steyaert --------------------------------------------------------------------------- Observer: Mikhail Svoiski Location: Tempe, AZ, USA (33 21' N, 111 54' W) Frequency: 55.249 MHz / 67.240 MHz from March 11 Transmitters: Los Lochis (880 km, 100 kW), Monterey (1200 km, 100 kW) Antenna : Winegard GS-2200 active dipole Receiver: KB9YIG Softrock VHF Ensemble Computer: Compaq Armada M700 Observing method: Spectrum Lab Colorgramme RMOB Lab v 2.3 | April 2012 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 7 8 10 14 8 11 20 6 6 9 5 20 13 16 12 1 | 6 8 8 11 16 14 18 9 7 12 5 14 11 23 1 2 | 4 9 9 0 11 21 0 13 9 16 15 17 20 3 3 | 8 16 16 24 0 22 29 0 22 21 24 20 30 34 37 4 | 13 24 30 39 35 39 40 37 31 27 32 54 49 54 47 5 | 28 44 40 49 42 59 39 47 36 36 47 67 69 69 80 6 | 24 31 59 75 71 62 52 45 44 41 64 72 89 76 65 7 | 30 60 51 65 60 69 56 62 53 48 69 82 88 98 105 8 | 24 62 75 86 73 102 60 81 64 66 92 116 145 123 104 9 | 46 81 97 112 125 114 105 111 112 98 121 146 228 124 166 10 | 41 96 94 103 96 132 101 100 85 98 126 158 273 162 143 11 | 44 87 80 106 113 44 121 120 91 72 111 136 206 172 147 12 | 45 85 83 102 98 16 84 90 89 91 97 116 199 182 116 13 | 44 85 87 88 110 97 113 99 101 80 128 88 205 203 149 14 | 46 86 92 127 117 117 98 106 112 114 142 127 222 238 133 15 | 39 79 97 132 119 47 101 107 87 94 121 144 207 203 132 16 | 38 78 88 105 76 128 73 83 82 79 139 149 173 143 105 17 | 36 61 50 81 66 75 58 66 71 51 98 84 155 99 108 18 | 34 56 46 53 58 64 56 57 68 43 76 64 144 47 108 19 | 32 60 60 61 61 43 49 48 48 39 57 66 112 53 77 20 | 17 31 48 43 37 49 29 43 36 58 57 109 35 88 21 | 34 23 25 45 27 27 33 26 33 61 40 42 67 40 47 22 | 22 20 23 34 23 27 18 11 27 9 30 21 50 23 30 23 | 16 14 30 21 12 17 8 10 13 12 18 15 35 17 10 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2012 | April 2012 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 14 27 22 18 13 14 11 17 26 15 12 15 19 37 1 | 13 10 8 16 10 17 8 17 17 13 26 14 21 15 2 | 17 19 23 14 24 19 15 24 26 23 22 25 30 16 21 3 | 30 33 25 19 31 39 25 47 31 39 39 31 31 43 35 4 | 47 32 48 52 56 48 48 79 64 54 66 63 60 75 69 5 | 55 47 65 70 46 64 87 95 75 93 85 84 98 86 63 6 | 62 49 86 77 75 81 106 110 101 106 104 113 118 115 68 7 | 68 52 93 95 104 110 173 132 118 99 101 130 97 100 120 8 | 98 72 113 59 123 131 195 143 132 111 145 135 109 131 155 9 |103 89 161 119 152 164 218 155 157 130 170 152 143 147 173 10 | 94 83 145 153 141 180 205 142 147 131 160 175 166 170 199 11 | 90 73 109 158 155 145 143 173 135 144 172 153 184 193 185 12 | 92 94 129 150 175 145 171 157 192 160 176 187 148 218 221 13 |116 87 165 168 181 166 237 178 191 156 237 199 237 291 14 |149 102 187 178 180 201 223 179 197 199 234 231 222 290 15 | 93 122 159 165 181 146 198 179 196 208 219 203 203 261 16 | 89 94 110 108 142 125 170 144 164 153 157 151 160 127 211 17 | 69 68 87 93 97 96 77 100 95 168 105 97 97 185 165 18 | 63 67 96 72 69 53 75 83 93 89 77 105 162 129 19 | 49 46 61 63 85 60 73 76 68 102 117 82 163 143 20 | 51 34 46 47 63 15 70 52 77 54 69 82 66 137 91 21 | 31 40 56 50 40 54 60 45 65 51 76 52 125 84 22 | 18 29 22 86 28 34 38 36 46 38 30 53 25 79 53 23 | 17 24 20 18 14 30 23 27 21 32 25 21 37 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2012 Mikhail Svoiski --------------------------------------------------------------------------- Observer: Dave Swan Location: Bransgore UK (50.47 N 1.44 W) Receiver: AR-3000A Antenna: 5 element Yagi Gain 7.5 dBd. Azimuth 190 deg elevation 12 deg. Frequency: 55.25 MHz Transmitter: TV channel E3 (video) Computer: 1.6 GHz Pentium with HROFFT. Colorgramme RMOB Lab v 2.3 | April 2012 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 168 166 165 117 142 156 1 | 143 208 176 150 177 132 2 | 163 188 179 145 191 147 3 | 175 202 218 186 171 149 4 | 209 205 235 212 226 184 5 | 229 245 231 196 235 199 6 | 247 283 256 244 260 226 7 | 285 277 322 260 301 248 8 | 289 301 364 289 294 330 9 | 291 250 297 316 227 325 297 10 | 238 209 257 258 211 261 246 11 | 227 188 232 215 193 239 257 12 | 214 216 224 273 199 206 13 | 221 217 253 283 254 239 14 | 208 210 225 206 242 248 15 | 156 147 180 162 193 190 16 | 96 111 123 119 126 124 17 | 68 83 68 96 85 74 18 | 59 70 63 I 62 52 19 | 57 46 53 I 59 56 20 | 61 56 60 48 52 54 21 | 98 78 78 75 98 65 22 | 113 116 111 81 93 115 23 | 137 152 178 130 120 98 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2012 Note: . once the interference started drifting through the receiver pass-band observations were terminated. I am in the process of constructing a battery operated spectrum analyser in the hope of locating the source of the interference. . E = sporadic E . I = interference . Au = Aurora . blank = equipment out of service Dave Swan --------------------------------------------------------------------------- Observer: Felix Verbelen ON4AVF Location: Kampenhout, Belgium (4 36' E, 50 57' N) Frequency: 49.990 MHz OT1KZG Transmitter: VVS beacon at Astrolab IRIS, Ypres, Belgium (2 54' 45" E, 50 49' 03" N), 50 W, carrier (no modulation), LHCP, upward beaming Antenna: 2-elements HB9CV Yagi, elev 52 deg, azimuth 250 deg (W) Receiver: ICOM 7100 Observing method: automated setup using PC soundcard + Spectrum Laboratory software [Digitised sound and computer images are stored on local harddisks for further analysis. Only overdense meteor reflections are counted manually and used for statistics] Duration >= 2 seconds | April 2012 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 3 3 1 1 0 0 0 0 1 0 0 0 0 2 3 1 | 5 3 2 1 3 1 0 2 2 1 1 2 5 0 3 2 | 1 0 1 2 2 0 0 3 1 1 1 5 2 2 2 3 | 2 2 2 0 0 2 1 3 3 0 2 2 2 1 2 4 | 2 1 0 2 3 1 2 1 0 3 2 2 2 2 6 5 | 2 1 0 1 4 6 0 1 0 2 2 2 0 2 3 6 | 2 2 5 4 3 2 3 1 1 4 4 5 3 1 5 7 | 1 2 1 5 1 3 3 3 3 3 3 0 2 5 3 8 | 0 3 4 1 4 2 2 4 3 2 3 1 3 3 0 9 | 0 3 3 2 0 1 3 0 3 2 4 3 2 8 2 10 | 3 1 0 1 2 3 2 1 1 2 0 1 1 0 2 11 | 3 2 2 3 1 3 1 0 3 3 2 3 1 2 1 12 | 0 0 1 0 0 1 0 1 0 2 0 0 0 0 0 13 | 2 0 1 0 0 2 0 0 1 1 0 2 0 1 1 14 | 0 1 0 0 0 0 1 1 0 0 1 1 1 0 2 15 | 0 1 1 0 0 0 0 0 0 0 0 0 1 0 2 16 | 0 1 0 1 0 0 0 0 0 0 0 0 1 0 0 17 | 0 0 1 1 0 1 0 1 1 1 0 0 0 0 1 18 | 0 0 0 0 1 0 0 0 0 0 2 0 0 0 0 19 | 0 0 0 0 1 1 0 2 0 0 0 1 1 0 0 20 | 0 0 0 1 0 0 0 0 0 0 1 2 3 0 1 21 | 2 0 1 0 0 0 0 0 0 0 0 0 0 0 2 22 | 0 0 3 0 1 0 3 2 0 0 0 0 0 1 0 23 | 0 1 0 0 1 2 1 0 1 0 1 0 0 1 0 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2012 | April 2012 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 0 3 3 1 7 0 14 5 0 4 2 0 6 4 4 1 | 1 1 1 0 3 5 18 3 6 2 1 1 2 4 0 2 | 1 2 2 2 4 5 22 4 2 2 2 0 4 2 3 3 | 3 3 1 3 4 5 22 7 3 4 1 4 7 3 4 4 | 5 3 2 2 7 6 11 7 7 2 2 2 5 2 5 5 | 5 6 1 2 6 11 6 9 7 10 2 7 4 5 4 6 | 1 4 4 0 2 2 8 7 5 7 6 1 9 7 4 7 | 2 3 1 7 3 5 2 4 4 3 5 7 13 6 4 8 | 3 1 2 3 1 2 8 4 3 9 7 4 7 10 3 9 | 1 5 2 3 2 1 2 1 6 5 3 8 6 7 4 10 | 0 4 0 4 1 0 2 3 8 2 4 5 5 5 5 11 | 2 4 3 2 1 2 3 3 4 5 5 2 4 5 4 12 | 2 0 1 2 0 0 3 0 1 1 3 1 5 1 1 13 | 0 1 0 2 1 0 0 0 0 2 3 2 3 1 3 14 | 0 0 0 0 0 0 0 2 0 0 1 1 1 0 0 15 | 1 0 0 0 0 0 0 3 0 1 1 0 1 0 0 16 | 1 0 0 0 0 0 1 0 0 0 1 0 4 0 2 17 | 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 18 | 1 2 0 0 0 0 0 0 1 1 0 0 0 2 2 19 | 0 2 0 0 2 0 0 0 1 0 0 0 0 1 0 20 | 1 2 0 0 2 1 1 0 2 1 0 2 1 0 1 21 | 1 0 2 1 1 0 2 1 1 0 0 0 4 1 2 22 | 0 1 2 3 2 5 3 3 2 0 0 0 2 1 0 23 | 1 0 2 1 4 7 0 4 2 2 0 3 2 0 2 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2012 Duration >= 10 seconds | April 2012 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 | 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 2 | 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 3 | 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 4 | 1 0 0 0 0 0 0 0 0 0 0 0 0 1 1 5 | 2 0 0 0 0 0 0 0 0 0 0 0 0 0 1 6 | 0 1 0 0 1 0 1 0 0 0 1 2 0 0 0 7 | 0 0 0 0 0 2 0 0 0 0 1 0 1 1 2 8 | 0 1 1 0 1 1 2 1 0 0 1 1 1 0 0 9 | 0 3 0 1 0 0 0 0 2 0 0 1 1 2 1 10 | 0 0 0 1 0 1 0 0 0 0 0 0 0 0 1 11 | 1 0 0 1 0 0 0 0 1 0 0 0 0 1 0 12 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 13 | 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 14 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 15 | 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 16 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 17 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 18 | 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 19 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 20 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 21 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 22 | 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 23 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2012 | April 2012 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 0 0 0 0 1 0 2 1 0 0 0 0 1 0 0 1 | 0 0 0 0 0 2 4 0 0 0 0 0 0 0 0 2 | 0 0 0 1 0 1 3 2 0 0 0 0 1 0 0 3 | 0 0 1 1 2 1 3 0 0 0 0 0 0 1 0 4 | 0 1 1 0 0 2 4 3 1 0 0 0 0 1 0 5 | 1 4 0 0 1 3 4 2 1 1 0 1 0 1 1 6 | 0 0 2 0 2 1 1 2 1 1 3 0 2 2 0 7 | 0 2 0 2 0 0 1 0 0 1 3 0 4 2 1 8 | 0 0 0 2 0 1 5 0 1 1 1 0 0 1 0 9 | 0 1 0 0 1 0 0 0 1 1 1 3 0 1 1 10 | 0 1 0 1 0 0 1 0 0 0 1 1 0 0 1 11 | 0 1 1 0 0 0 0 0 3 1 0 0 2 1 2 12 | 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 13 | 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 14 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 15 | 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 16 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 17 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 18 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 19 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 20 | 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 21 | 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 22 | 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 23 | 0 0 1 0 0 3 0 0 0 0 0 0 0 0 0 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2012 Note: . some caution about the period after May 21 2011. Felix Verbelen 2. ABOUT THE RMOB The RMOB is an independent initiative of some workers in the field of radio meteor scatter observations and data reduction. It started in August 1993 in order to spread the Perseid results via E-mail. Since then, it has appeared monthly, and it has gradually been expanded. In regularly publishing summaries of observations, potential radio observers are kept up to date of existing installations, possibilities and limitations of radio meteor observations. In the long run, there should be sufficient observing stations to cover the whole globe, allowing to detect stream outbursts which may remain unnoticed visually. RMOB contains typically: summaries of previous month's observations, equipment data, first results of stream activity by radio methods, relations between radio and optical meteors, references to other publications in the field of meteor astronomy and radio scatter techniques, announcements of meetings, short questions and answers, links to interesting web sites. Contributors are mentioned, and interested persons are asked to contact them directly. RMOB can be copied freely in unabridged and unmodified form. Extracts should indicate the source (Radio Meteor Obs Bulletin, month and year). If you want to subscribe (or un-subscribe) to the E-mail distribution list, please send a message to C. Steyaert. 3. CONTRIBUTORS / USEFUL ADDRESSES Enric Fraile Algeciras (EA3BTZ) C/ Moianes 19-21 Esc. A 6º 1ª, E Barcelona mailto:e.fraile@telefonica.net http://www.telefonica.net/web/enricfraile (in Spanish) http://astrosurf.com/somyce/c_radio.htm Orlando Benítez Sánchez Las Palmas de Gran Canaria, Spain mailto:avejerilla@yahoo.es Michael Boschat Royal Astronomical Society of Canada - Halifax Center 6306 Cork St., Apt.308, Halifax, Nova Scotia Canada B3L 1Z1 mailto:aa063@chebucto.ns.ca http://www.chebucto.ns.ca/~aa063 Jeff Brower Kelowna, British Columbia, Canada mailto:jbrower@meteorchaser.net http://members.shaw.ca/jbrower/ Julien Bruyland Lauwe, Belgium mailto:julien@bruyland.be Willy Camps Tessenderlo, Belgium mailto:willy.camps@telenet.be Johan Coussens Harelbeke, Belgium mailto:johan.coussens@skynet.be Gaspard De Wilde (ON4ZK) Dessel, Belgium mailto:on4zk@telenet.be Franky Dubois Langemark, Belgium mailto:astrosun@skynet.be http://www.digilife.be/club/franky.dubois/meteor.html David Entwistle Goosnargh, England mailto:david@radiometeor.plus.com http://www.radiometeor.plus.com/ Kurt A. Fisher Salt Lake City,Utah, USA mailto:fisherka@csolutions.net Station description: http://www.slas.us/gallery2/main.php?g2_itemId=2984 Karl-Heinz Gansel Dingden, Germany mailto:karl-heinz.gansel@t-online.de http://www.radio-astronomie.de/ra/ Observer: Luc Gobin Mechelen, Belgium mailto:luc.gobin@gmail.com Patrice Guérin La Chapelle, 79140 Le Pin, France mailto:guer1_pm@orange.fr Alex Guzanoff Oktyabrsky, Russian Federation mailto:radio-sky@rambler.ru Szabolcs Kiss Katai ut 99, H-2251 Tapioszecso, Hungary tel: +36 29 446 015 mailto:achilles@freemail.hu Peter Knol Appingedam, Netherlands mailto:cyberknol@gmail.com http://home.deds.nl/~knol Alfred Krohmal Syzran, Russian Federation mailto:rm4hm@rambler.ru Vitaly Mechinsky mailto:Lupus@belastro.net Cristian Negru mailto:cyo3fff@yahoo.com Romania Hiroshi Ogawa The Nippon Meteor Society mailto:h-ogawa@amro-net.jp Radio Meteor Obs. http://www.amro-net.jp/radio.htm Mike Otte W9YS 5001 S Koch Rd Pearl City, IL 61062 USA mailto:mmotte@starband.net http://mmotte.mystarband.net/ SKiYMET Radar ALOMAR Observatory Norway mailto:singer@iap-kborn.de http://www.iap-kborn.de/radar/Radars/ALWIN/index_eng.htm Jean-Louis Rault F6AGR Epinay sur Orge, France mailto:Jean-Louis.RAULT@fr.thalesgroup.com Steve Roush Apache Junction, AZ, USA mailto:ofitg@yahoo.com Wayne Sanders Prince George BC, Canada mailto:wsanders@xplornet.com http://users.xplornet.com/~rdlobs/ Ivan Sergey Belarus mailto:seriv76@tut.by Andy Smith Plymouth, United Kingdom mailto:andy@television.f9.co.uk http://www.tvcomm.co.uk/radio - Live audio available Chris Steyaert Mol, Belgium mailto:observations@rmob.org Most recent spectrograms: http://www.rmob.net Radio meteor mailing list (English): send 'subscribe radiometeoren' in message to majordomo@vvs.be Twitter @rmob_org Misha Svoiski Tempe, AZ, USA mailto:msvoiski@gmail.com Dave Swan Christchurch, UK mailto:dave@radiodesignservices.co.uk http://www.radiodesignservices.co.uk Istvan Tepliczky Budapest, Hungary mailto:tepi@mcse.hu Pierre Terrier Canet (close to Montpellier), France mailto:pierre.terrier@free.fr http://members.tripod.com/~astro_electronic/index.html Meteor & Colorgramme web site: http://page.to/meteor/ Meteor mailing list: mailto:meteor-request@ml.free.fr?subject=subscribe Dirk Van Hessche Appelterre-Eichem, Belgium mailto:dirk.van_hessche@skynet.be Maarten Vanleenhove Leest, Belgium mailto:maarten.vanleenhove@telenet.be http://www.supernovae.be/meteors Felix Verbelen (ON4AVF) Kampenhout, Belgium mailto:felix.verbelen@skynet.be John Wardle, G4CVA Bridlington, East Yorkshire, UK mailto:jawardle27@btinternet.com Richard White, Gi4DOH Bangor, Northern Ireland mailto:richard@ramfihaz.co.uk http://www.ramfihaz.com/information.htm -- Christian Steyaert (RMOB1204) 5 May 2012 --