Meteor Observation Bulletin No. 321 www.rmob.org April 2020 1. GLOBAL OBSERVATIONS Observer: Associazione Astrofili Veneziani "AAV" Planetario di Venezia Location: Venezia, Italy (12 22' E, 45 25' N) Frequency: 143.05 MHz Graves Receiver: Yaesu FT-817 Antenna: Yagi 6 elements Antenna Direction: elev 20 deg, azimuth 294 deg (W) Computer: Pentium + XP Observing method: Spectrumlab + Colorgramme RMOB Lab v 3.0 | April 2020 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h|130 109 111 126 119 124 127 126 138 136 121 116 120 110 137 1 |127 113 113 121 133 140 124 126 111 133 109 115 110 110 131 2 |116 111 106 113 135 118 132 114 108 108 119 111 131 110 101 3 |107 109 99 94 111 90 102 110 110 112 107 94 109 106 105 4 | 88 103 84 94 99 98 101 103 120 91 105 96 89 87 115 5 | 80 99 97 101 79 83 109 100 100 95 89 99 95 82 80 6 | 92 85 104 109 78 93 89 88 105 111 111 101 112 78 91 7 | 79 89 91 73 101 95 113 99 78 82 95 103 86 84 88 8 | 96 94 101 111 95 108 97 88 98 84 104 93 101 91 85 9 | 95 86 79 102 113 108 108 88 104 92 86 99 90 99 94 10 | 90 94 86 112 93 91 97 91 82 86 94 96 87 77 100 11 | 75 82 79 72 91 106 102 85 107 86 83 79 82 103 69 12 | 68 61 92 90 106 79 85 73 77 63 79 69 71 71 88 13 | 67 1 55 66 56 66 63 75 68 55 75 74 48 67 67 14 | 38 44 53 56 54 47 38 51 48 54 46 47 34 48 59 15 | 34 43 43 43 34 35 44 41 26 51 49 34 29 35 55 16 | 23 25 24 24 34 30 34 38 36 43 28 36 34 32 40 17 | 43 31 19 31 32 29 39 32 38 26 25 30 27 32 31 18 | 29 35 31 33 37 36 31 41 26 36 37 35 40 34 20 19 | 43 39 46 45 39 34 45 50 49 38 38 32 41 48 42 20 | 52 60 57 48 55 49 53 62 47 46 65 59 59 58 36 21 | 64 72 69 64 65 73 56 60 73 55 46 59 56 62 73 22 | 66 88 66 66 82 72 74 75 81 72 79 76 80 82 87 23 |111 106 113 118 115 84 109 106 127 113 93 112 113 127 109 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2020 | April 2020 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h|120 123 109 123 132 136 136 160 137 1 |128 137 138 115 120 139 149 123 123 2 |120 107 120 118 119 118 118 99 121 3 |100 98 89 103 101 105 97 116 96 4 |107 96 107 110 119 97 100 111 121 5 |103 99 107 118 120 100 116 104 122 6 | 92 97 84 112 103 89 120 116 115 7 | 0 97 79 106 83 92 111 104 116 8 | 83 89 92 81 87 89 107 116 9 | 85 92 78 88 101 92 100 108 10 |110 85 80 85 97 89 89 103 11 | 87 85 93 91 93 79 92 82 12 | 73 60 80 81 85 81 85 89 13 | 78 68 78 55 69 69 73 85 14 | 57 43 63 49 54 58 58 52 15 | 54 44 37 47 41 41 45 42 16 | 31 40 38 28 30 27 33 28 17 | 32 44 31 28 29 39 35 34 18 | 31 30 44 39 39 38 31 35 19 | 45 35 39 56 49 35 45 53 20 | 52 54 58 59 46 62 61 61 21 | 71 74 80 58 73 68 74 69 22 | 87 88 88 72 71 84 92 89 23 |125 101 110 117 132 102 119 105 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2020 Enrico Stomeo --------------------------------------------------------------------------- Observer: Salvador Aguirre Location: Hillo, Sonora, Mexico (110 57' W, 29 06' N) Frequency: 54.309 MHz Receiver: RTL-sdr Antenna: Moxon 6-Meter Antenna Direction: elev 0 deg, azimuth 340 deg Computer: HP 2.50GHz, 8GB RAM, Windows10 Observing method: Colorgramme RMOB Lab v 3.0 | April 2020 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 5 8 6 7 8 12 12 9 10 2 5 10 9 1 1 | 3 2 8 3 4 6 9 2 7 3 5 4 4 5 2 | 6 8 5 8 5 3 7 9 6 5 4 14 6 8 3 | 5 2 10 4 6 3 6 8 7 9 7 5 1 2 8 4 | 9 3 9 3 7 9 5 6 6 8 9 10 7 13 4 5 | 9 8 1 6 6 15 8 8 10 9 10 5 7 27 11 6 | 9 6 14 17 6 8 14 7 11 13 8 18 13 5 9 7 | 18 9 9 12 22 11 13 18 15 8 13 13 14 16 23 8 | 25 12 11 19 12 16 16 22 28 22 25 25 20 14 20 9 | 23 15 24 23 26 18 20 22 23 29 30 21 20 24 26 10 | 24 22 18 34 28 31 30 26 19 24 27 21 22 24 31 11 | 24 20 25 24 35 32 24 24 18 18 35 24 30 20 38 12 | 32 26 29 34 40 32 41 37 31 26 40 35 43 26 41 13 | 40 39 35 33 25 34 40 27 41 42 36 35 37 36 10 14 | 38 32 32 45 38 35 36 29 37 49 39 43 36 51 15 | 33 33 33 27 27 36 37 39 32 31 38 36 32 35 16 | 23 30 29 30 26 28 29 30 24 28 32 32 29 31 17 | 23 32 33 34 34 26 27 26 31 31 34 44 31 20 18 | 28 34 23 30 37 44 37 23 28 26 43 55 31 35 19 | 30 25 30 47 25 34 32 42 24 37 36 38 26 22 20 | 23 31 31 37 23 41 28 23 25 24 26 25 24 34 21 | 13 21 17 25 16 33 26 36 29 17 34 17 16 34 22 | 12 16 8 14 19 23 20 15 12 14 15 9 15 14 23 | 9 9 12 8 9 11 6 11 8 9 11 5 9 3 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2020 | April 2020 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 7 12 5 7 7 9 4 3 4 6 6 5 7 5 1 | 5 1 6 4 6 6 2 8 1 7 10 3 2 4 2 | 12 7 3 8 8 11 9 6 8 7 10 5 5 4 3 | 6 4 12 9 8 10 2 5 11 4 11 12 7 7 4 | 5 6 5 6 13 14 5 10 8 4 12 10 5 4 5 | 10 13 19 19 11 24 18 6 7 11 11 6 8 10 6 | 9 11 15 12 20 38 12 19 10 14 18 6 7 7 7 | 13 14 24 14 30 43 21 19 12 9 18 6 21 12 8 | 32 25 34 25 29 39 36 32 26 11 27 15 22 23 9 | 30 26 32 26 27 35 23 25 14 17 27 19 28 26 10 | 20 24 40 22 26 21 26 35 25 21 30 34 23 27 11 | 28 29 31 36 37 38 33 41 25 42 46 35 25 47 12 | 42 41 41 38 45 46 34 46 35 40 47 47 51 54 13 | 31 39 43 38 63 52 46 50 35 30 48 40 32 40 14 | 34 31 35 34 47 60 48 40 34 38 27 50 30 33 12 15 | 42 27 40 49 46 37 40 31 30 24 50 41 35 35 16 | 31 40 40 36 28 25 53 32 25 23 26 64 30 38 17 | 23 26 27 38 20 37 29 31 28 27 36 27 28 18 | 31 31 33 39 23 29 40 38 30 28 38 34 28 19 | 31 44 30 62 37 49 43 44 35 34 46 44 38 20 | 39 27 29 40 44 37 40 34 38 32 40 24 33 31 21 | 28 28 30 30 27 35 25 28 26 37 30 32 19 19 22 | 12 14 20 14 25 21 27 12 18 19 7 17 14 15 23 | 11 12 12 19 14 38 11 11 10 8 5 2 9 4 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2020 Salvador Aguirre --------------------------------------------------------------------------- Observer: Mario Bombardini Location: Faenza, Italy (11 54' E, 44 17' N) Frequency: 143.05 MHz Graves USB Receiver: YAESU FT-857 Antenna: DIAMOND A144S5R Antenna Direction: elev 20 deg, azimuth 300 deg (NW) Computer: ASUS P5KPL-SE win10 Observing method: Spectrumlab + Colorgramme RMOB Lab v 3.0 | April 2020 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 64 46 57 53 72 81 80 56 80 72 58 52 67 60 63 1 | 61 56 75 66 67 79 97 78 64 75 72 77 91 82 75 2 | 71 71 84 73 69 95 87 91 74 74 67 80 72 78 76 3 | 71 54 78 69 79 75 90 77 73 75 73 72 92 59 66 4 | 50 57 81 58 76 81 60 75 59 67 65 44 68 55 53 5 | 50 47 57 52 55 70 48 45 58 75 66 80 64 60 65 6 | 39 59 64 76 65 71 79 72 64 62 76 74 60 54 44 7 | 57 61 62 85 66 77 80 62 79 57 70 60 62 68 52 8 | 47 84 58 51 60 76 69 68 55 64 74 76 66 63 55 9 | 67 70 71 64 71 93 84 81 69 67 73 65 85 68 62 10 | 56 84 61 80 84 76 81 90 72 73 83 94 79 82 77 11 | 65 63 90 87 74 94 96 81 76 86 76 83 78 76 87 12 | 63 70 80 60 96 80 83 70 77 69 68 56 75 84 78 13 | 55 73 66 65 77 67 85 73 77 42 72 69 65 74 80 14 | 42 41 46 47 37 53 71 56 54 55 57 62 55 52 57 15 | 41 32 43 38 24 44 45 39 49 45 38 34 36 32 51 16 | 10 23 19 26 26 29 29 1 20 23 28 32 26 36 29 17 | 16 16 18 20 18 15 34 22 15 25 22 24 24 27 25 18 | 19 17 20 20 19 22 22 32 20 14 15 20 21 26 25 19 | 16 25 20 10 19 23 34 13 15 23 19 20 21 23 18 20 | 19 21 24 25 22 31 40 28 23 27 15 20 22 17 13 21 | 17 31 19 33 41 37 33 26 30 31 24 29 32 35 26 22 | 32 42 38 32 38 50 35 35 31 35 31 57 50 32 42 23 | 35 61 42 44 56 52 53 63 43 59 45 52 60 63 47 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2020 | April 2020 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 62 64 72 63 75 79 60 55 56 61 70 69 71 64 71 1 | 75 60 80 73 82 82 56 73 77 69 86 68 83 68 89 2 | 54 51 85 69 70 95 62 62 78 67 83 68 70 79 85 3 | 55 52 74 76 58 88 55 53 83 61 74 65 73 69 68 4 | 57 59 70 74 65 82 65 63 65 62 65 68 82 80 64 5 | 62 59 82 67 71 70 60 48 69 71 79 80 65 87 83 6 | 59 61 78 72 79 75 76 61 68 93 77 70 76 80 83 7 | 58 68 68 71 81 82 82 68 68 84 88 76 93 92 80 8 | 47 62 40 76 70 81 78 57 60 73 88 74 88 74 81 9 | 49 51 78 74 81 67 70 77 70 78 99 85 82 94 65 10 | 69 81 80 76 64 69 87 66 82 73 89 88 90 83 94 11 | 79 70 66 82 78 62 76 75 79 80 79 75 88 77 74 12 | 86 80 80 67 90 79 76 95 87 72 86 90 90 80 73 13 | 77 70 61 70 68 63 69 78 86 68 68 58 93 81 85 14 | 53 55 61 56 73 44 56 70 61 58 86 78 71 63 68 15 | 39 48 46 42 42 24 37 44 52 37 54 48 51 50 53 16 | 23 23 30 25 28 30 29 25 28 26 35 31 31 39 31 17 | 13 16 25 13 28 21 13 20 20 14 22 18 22 15 19 18 | 16 20 19 16 26 18 11 19 16 20 24 19 17 42 61 19 | 22 17 22 14 21 24 12 25 16 17 17 32 15 30 20 20 | 28 19 18 22 30 18 27 26 30 26 23 30 21 25 19 21 | 27 25 29 30 43 31 24 29 38 38 31 33 28 40 38 22 | 25 35 36 38 50 24 50 37 72 38 49 51 43 40 50 23 | 47 51 45 58 67 50 55 65 46 49 62 67 63 57 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2020 Mario Bombardini ---------------------------------------------------------------------- Observer: Michael Boschat Location: Halifax, Canada (63 36' W, 44 36' N, 60 meters above sea level) Listening Frequency: 77.251 MHz Receiver: Icom R-20 Antenna: resonant dipole Antenna Direction: Horizontally polarized to 250 deg with lobes in N-S plane, elev 0 deg Filter: high-Q (Q at least 300) bandpass filter between antenna & receiver. Listening Mode: CW Recording method: Viewing Spectrumlab on laptop and listening by ear Number of meteors heard in one hour interval | April 2020 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 11h| 5 2 1 - 2 4 1 - - - 3 - 3 - - 12 | 2 2 0 - 2 0 4 2 6 - 6 - 2 1 - 13 | 2 3 2 1 2 0 5 1 6 2 1 2 - 1 - 14 | 6 4 1 2 2 3 4 1 8 2 5 1 - 4 - 15 | 2 2 2 1 7 0 4 4 1 3 2 1 - 10 - ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2020 | April 2020 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 11h| - 2 - 7 2 4 3 14 8 3 - - - - 3 12 | 3 3 - 4 2 8 3 10 10 4 - 1 - 4 - 13 | 5 1 - 6 2 4 3 8 6 3 - 5 - - 3 14 | 7 3 - 5 5 15 6 4 3 4 - 1 - 2 2 15 | 6 - - 3 5 13 6 5 3 6 - 3 - 4 2 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2020 Notes: . moved to new location, radio rates down . Unknown strong tone appeared March 7, 2017, trying to find solution as rates dropped. I have no idea what the problem is, if it is that tone destroying my reception or a problem with the notch filter. . did not get one reflection at all from the Arietids or Zeta Perseids!! . no corrections for radiant position made to the counts. . ( - ) means no observations made. . Zero (0) is actual number meteors not heard/seen per hour! . have dismantled system as moving on 29th March to new location. Hopefully will detect more meteors than this location. Mike Boschat ---------------------------------------------------------------------- Observer: WHS Essen Location: Essen, Germany (6 59' E, 51 24' 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: 6m Turnstile ON4ZK, elev 45 deg, azimuth 240 deg (SW) Pre-amplifier: Bandpass 49.9 MHz, SSB LNA600 Receiver: FunCubeDongle Pro+ Observing method: Spectrumlab, Colorgramme RMOB Lab v 2.5 | April 2020 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 33 9 18 24 14 11 27 20 24 1 | 25 21 23 18 15 18 21 15 29 2 | 14 16 19 11 14 15 25 18 20 3 | 10 10 12 14 22 14 21 17 17 4 | 8 18 12 19 21 16 13 9 12 5 | 13 7 13 14 32 18 17 15 10 6 | 14 19 17 18 20 13 18 15 15 7 | 24 22 18 23 16 21 12 19 22 8 | 21 17 2 29 20 13 21 17 24 22 9 | 13 11 8 21 14 10 18 22 21 8 10 | 11 13 10 23 8 19 20 14 12 9 11 | 16 7 5 20 11 17 14 15 10 16 12 | 3 10 9 8 19 23 9 12 13 24 13 | 6 7 6 7 14 10 12 8 11 9 14 | 4 9 6 7 13 9 16 3 3 6 15 | 7 4 9 8 14 10 12 9 11 11 16 | 8 5 7 10 4 8 10 4 10 6 17 | 10 8 3 6 4 9 7 13 9 10 18 | 4 9 7 8 7 15 7 14 8 10 19 | 8 6 11 12 7 9 7 8 13 20 | 9 8 9 13 13 8 13 9 11 21 | 20 25 19 9 15 6 11 14 16 22 | 16 30 10 19 19 21 20 13 15 23 | 15 18 14 9 27 25 15 14 18 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2020 | April 2020 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 18 20 25 21 13 23 27 20 13 27 9 11 9 24 24 1 | 14 17 21 22 13 13 25 32 20 17 13 24 19 14 17 2 | 16 13 14 24 17 16 17 11 14 8 14 16 16 22 18 3 | 17 11 13 23 25 17 17 16 13 5 6 12 10 15 21 4 | 9 13 14 19 21 23 25 17 19 14 12 11 16 23 13 5 | 17 25 15 15 19 21 22 17 20 19 16 19 22 30 12 6 | 16 21 18 22 14 15 23 23 22 14 27 16 21 24 30 7 | 23 19 16 24 20 11 19 17 22 33 26 21 17 32 25 8 | 13 16 17 19 19 29 20 21 32 16 25 11 19 21 9 9 | 13 11 11 18 18 30 15 14 14 17 17 8 12 15 12 10 | 4 18 14 25 19 13 16 19 10 15 9 9 12 11 9 11 | 11 10 22 18 12 8 12 15 9 39 5 7 7 10 10 12 | 17 7 11 12 7 10 7 9 20 25 5 6 9 10 5 13 | 16 8 11 14 5 5 11 10 19 3 7 9 6 13 6 14 | 17 6 12 3 13 10 4 12 8 12 7 9 10 5 10 15 | 15 9 11 5 17 16 9 4 9 8 13 5 12 3 16 16 | 4 5 13 4 9 6 4 4 11 14 9 8 11 2 9 17 | 5 12 10 2 7 12 7 6 9 9 10 4 9 10 15 18 | 4 17 6 12 11 12 7 7 7 7 5 7 8 3 11 19 | 11 15 8 2 5 13 9 8 8 8 6 7 8 1 13 20 | 14 9 12 10 10 20 5 9 15 10 9 8 11 7 10 21 | 17 12 23 11 14 9 20 17 17 16 10 18 19 15 12 22 | 24 24 19 9 18 9 15 15 12 9 14 12 21 10 23 | 16 15 23 15 13 28 17 18 17 15 12 13 15 17 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2020 Note: . after ten years of uninterrupted operation, the driver of the transmitter failed due to a ceramic capacitor in short circuit. Installation of the backup driver was delayed due to COVID-19 restrictions. Jochen Plessmann ---------------------------------------------------------------------- Observer: Kees Meteor Location: Goes, Netherlands (3 57' E, 51 30' N) Frequency: 143.05 MHz Graves Receiver: RSP2pro Antenna: dipole Antenna Direction: elev 0 deg, azimuth 180 deg (S) Observing method: HROFFT + Colorgramme RMOB Lab v 3.0 | April 2020 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 1 3 3 3 1 0 3 2 1 2 1 3 2 1 2 1 | 0 4 2 1 0 2 1 2 2 2 2 1 2 2 3 2 | 5 2 3 2 3 1 2 3 4 3 5 2 2 0 3 3 | 3 1 4 7 2 2 1 9 8 1 5 0 3 3 2 4 | 2 1 5 3 7 6 4 3 1 1 2 5 0 2 4 5 | 5 3 4 6 2 2 7 2 4 3 10 3 3 4 3 6 | 3 2 3 0 7 6 4 4 5 4 4 4 4 5 2 7 | 6 6 7 4 7 4 6 4 3 3 3 3 4 5 13 8 | 6 5 4 10 6 1 5 5 4 2 4 0 1 4 1 9 | 3 2 6 1 5 5 6 6 1 2 3 0 1 3 5 10 | 5 5 3 4 5 5 5 5 2 3 3 8 2 3 4 11 | 7 4 2 4 3 4 5 4 7 1 4 3 1 2 2 12 | 5 5 1 3 0 4 3 3 3 3 2 2 4 4 13 | 4 1 7 2 3 3 3 2 4 2 2 3 2 2 14 | 3 3 1 3 0 2 4 1 2 1 2 7 2 2 15 | 7 3 4 2 3 7 3 4 1 2 3 2 3 4 16 | 5 2 0 3 3 3 2 1 2 1 2 1 0 4 17 | 1 2 2 3 2 2 1 4 0 3 1 2 0 3 18 | 0 2 1 1 1 3 3 3 0 0 2 2 1 2 19 | 2 3 1 3 0 2 2 0 0 0 1 2 2 0 20 | 2 0 2 2 0 0 1 1 1 1 1 1 1 4 21 | 2 1 3 0 3 0 0 1 1 0 1 3 2 1 22 | 2 1 4 0 1 2 3 3 1 1 3 2 0 1 0 23 | 3 1 2 3 2 2 2 2 4 1 0 3 0 7 1 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2020 | April 2020 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 2 1 1 | 3 3 2 | 2 2 3 | 5 5 4 | 0 4 5 | 1 3 6 | 3 3 7 | 2 2 8 | 3 3 9 | 3 7 10 | 1 7 11 | 2 2 12 | 3 7 13 | 4 4 14 | 1 1 15 | 2 4 16 | 4 5 17 | 0 2 18 | 1 1 19 | 0 1 20 | 0 3 21 | 0 1 22 | 2 23 | 4 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2020 Kees --------------------------------------------------------------------------- Observer: Fabio Moschini Location: Rovereto, Italy (11 00' E, 45 52' N) Frequency: 143.05 MHz Graves Receiver: Yaesu FRG-9600 Antenna: Yagi 4 elements Antenna Direction: elev 20 deg, azimuth 294 deg (W) Computer: Pentium Win7 Observing method: Spectrumlab + Colorgramme RMOB Lab v 3.0 | April 2020 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 98 77 83 76 103 127 145 106 97 111 95 91 94 119 115 1 |110 77 101 95 96 112 134 108 96 94 103 100 99 111 118 2 |114 107 80 95 96 101 145 107 97 117 105 100 98 105 118 3 | 95 96 96 90 82 108 136 114 109 110 109 98 106 99 108 4 | 97 86 100 81 87 97 142 93 118 104 95 112 104 96 118 5 | 76 91 88 82 107 86 100 113 83 86 111 99 83 116 93 6 | 71 79 84 81 90 91 103 120 93 81 88 93 97 105 98 7 | 74 97 77 77 87 95 106 101 88 80 101 99 86 110 106 8 | 75 99 78 78 82 100 105 88 88 100 85 97 119 107 102 9 | 90 96 93 93 88 110 102 88 93 90 106 106 95 93 95 10 | 79 70 86 77 88 114 94 90 89 87 96 110 108 105 116 11 | 94 86 75 91 100 109 108 91 97 95 99 121 105 103 109 12 |101 86 85 104 91 110 100 92 92 100 85 118 102 124 103 13 | 72 96 87 92 114 103 113 88 98 99 115 107 138 110 109 14 | 81 92 93 85 82 86 100 92 68 96 96 99 103 106 85 15 | 75 68 84 71 93 90 77 68 63 76 82 101 121 102 106 16 | 79 85 75 72 103 80 74 85 94 67 87 120 88 101 93 17 | 58 67 71 80 98 65 83 73 63 74 85 113 87 105 97 18 | 54 67 71 55 98 77 70 72 85 90 92 85 85 100 91 19 | 63 67 74 71 77 63 73 61 77 65 71 70 88 76 70 20 | 61 76 69 75 66 92 95 76 79 71 77 83 82 97 71 21 | 65 66 82 77 112 116 83 81 62 60 82 75 82 87 82 22 | 64 74 77 79 86 95 94 78 81 88 85 90 111 90 80 23 | 75 86 91 87 105 103 104 87 81 91 109 95 92 96 92 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2020 | April 2020 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h|103 109 89 94 114 117 45 53 31 51 45 43 47 38 31 1 |105 99 109 117 121 132 42 53 46 52 51 44 44 38 42 2 | 87 101 104 109 120 111 57 32 31 44 41 33 37 29 56 3 |122 117 99 112 110 99 40 30 51 44 41 51 26 50 44 4 |103 113 110 81 119 109 37 34 47 45 45 52 38 50 46 5 | 88 107 99 95 122 94 64 33 28 45 42 45 33 64 52 6 | 93 103 93 103 105 93 54 42 35 27 44 28 42 56 48 7 |103 112 107 112 102 123 44 42 32 30 42 38 34 52 32 8 |114 109 105 115 121 91 39 40 43 33 37 31 30 53 42 9 | 96 108 118 101 94 104 42 22 41 49 39 32 48 34 32 10 |108 86 101 140 134 14 37 36 49 36 59 46 48 35 44 11 | 99 107 108 116 137 59 48 39 37 47 60 56 54 69 47 12 |103 107 104 107 124 44 37 18 37 58 56 57 43 53 61 13 |105 109 118 126 121 30 28 23 50 40 42 56 40 74 41 14 | 98 87 100 103 123 31 32 31 49 62 56 43 55 52 40 15 | 92 94 103 130 108 28 25 32 35 60 41 48 40 35 46 16 | 98 81 78 109 99 23 36 26 29 28 31 45 24 20 28 17 |110 114 111 99 94 20 21 22 27 30 29 26 22 29 25 18 | 76 79 76 96 80 15 17 14 25 15 29 20 23 22 20 19 | 75 76 80 88 90 16 10 16 12 19 20 24 18 28 27 20 | 86 75 75 96 79 16 25 19 29 23 16 21 19 20 18 21 | 75 72 76 102 74 19 20 24 19 16 21 20 22 24 29 22 | 88 92 103 92 96 26 38 27 23 34 31 24 33 21 32 23 | 95 100 113 119 83 34 29 38 36 41 35 33 26 31 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2020 Fabio Moschini --------------------------------------------------------------------------- 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 2020 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 41 41 55 32 48 45 27 43 55 34 33 48 41 35 1 | 67 85 49 46 58 63 51 65 71 62 58 51 73 2 |119 99 56 61 103 74 59 88 96 109 104 97 92 3 |138 151 133 118 140 121 119 122 140 152 144 127 104 4 |175 207 166 130 183 163 164 197 193 206 220 186 202 5 |268 233 197 170 214 171 199 225 287 230 245 260 273 6 |244 246 203 179 246 213 192 219 250 271 231 256 276 7 |228 244 233 190 213 226 266 226 253 285 211 266 214 8 |211 233 196 210 204 198 207 225 232 287 224 207 231 9 |191 216 178 220 167 139 164 208 205 218 200 228 217 10 |194 211 188 163 159 127 138 200 189 186 184 195 160 11 |163 164 181 149 179 184 105 178 186 199 206 218 12 |205 178 143 157 119 206 172 223 195 224 249 238 13 |252 208 159 212 134 228 236 199 186 286 195 274 14 |207 223 234 147 175 149 225 236 272 250 224 291 15 |233 222 218 142 166 187 225 222 223 251 252 214 249 16 |192 187 150 122 161 187 160 165 178 188 141 158 199 215 17 |116 131 113 115 137 78 96 90 113 148 97 102 122 121 18 | 67 59 39 66 72 52 33 59 69 70 75 67 83 79 19 | 39 41 47 31 33 34 24 35 41 54 45 43 49 51 20 | 36 34 37 38 32 30 20 21 41 27 32 37 46 25 21 | 31 26 26 24 21 23 17 30 25 35 35 24 33 37 22 | 35 22 24 21 23 40 13 27 36 30 33 41 36 31 23 | 32 30 22 27 25 36 23 41 38 30 19 42 34 26 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2020 | April 2020 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 33 48 33 36 34 32 33 37 42 53 50 1 | 69 75 47 39 34 47 65 43 65 45 76 58 2 |108 110 46 78 66 100 75 89 67 65 104 75 3 |131 104 139 106 114 115 129 82 105 121 135 137 72 4 |177 123 132 163 205 158 158 156 126 180 146 114 159 5 |248 198 132 212 266 192 206 157 209 201 149 222 223 6 |263 106 176 209 282 220 207 175 197 227 150 251 243 7 |293 138 183 174 176 221 224 188 211 185 226 185 243 8 |237 194 201 170 170 174 254 100 168 166 230 228 236 9 |246 206 112 201 212 190 173 159 173 169 228 227 223 10 |271 219 159 195 194 202 192 201 181 176 274 289 256 11 |328 268 161 247 224 219 258 218 201 204 262 311 266 12 |345 247 188 243 248 255 281 237 220 255 248 333 325 308 13 |343 299 216 262 271 288 256 235 258 261 352 383 335 14 |297 296 201 268 277 257 161 267 240 264 299 350 294 15 |255 192 130 234 230 269 126 209 223 241 306 305 307 16 |170 139 140 161 188 214 141 144 159 191 213 231 197 17 |127 88 55 112 119 83 100 84 127 108 116 126 93 18 | 83 51 41 58 65 78 48 30 59 77 58 92 74 19 | 36 95 46 38 43 32 31 29 48 51 50 58 45 20 | 47 94 26 32 36 41 27 38 40 51 44 47 37 21 | 35 25 26 30 31 48 31 20 39 144 57 42 51 22 | 24 31 38 46 43 31 22 37 32 51 43 28 29 23 | 34 27 25 37 37 25 32 24 39 51 22 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2020 Mike Otte ---------------------------------------------------------------------- Observer: La Salle Radio Club, Josep Maria Gaya Location: Barcelona, Spain (2 07' 47" E, 41 24' 33" N) Frequency: 143.05 MHz GRAVES Antenna: vertical dipole Receiver: Funcube PRO Computer: Windows 7 Observing method: HROFFT, Colorgramme RMOB Lab v 3. | April 2020 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 16 12 17 13 1 | 21 23 20 23 2 | 15 22 10 18 3 | 10 22 17 20 4 | 8 25 21 18 5 | 18 17 22 17 6 | 26 15 17 20 7 | 21 32 27 22 8 | 22 32 20 27 9 | 13 38 29 33 10 | 16 31 33 36 11 | 23 33 39 33 12 | 6 22 24 35 13 | 19 21 19 14 | 30 28 24 15 | 36 23 35 16 | 10 21 33 21 17 | 16 10 11 22 18 | 8 9 4 12 19 | 4 12 6 13 20 | 3 3 5 6 21 | 16 5 7 5 22 | 19 5 12 3 23 | 17 11 9 8 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2020 | April 2020 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 19 16 12 21 17 23 19 24 0 18 0 23 7 13 1 | 16 21 21 24 17 21 17 20 0 24 0 19 24 27 2 | 18 15 26 20 23 27 20 18 0 20 0 22 23 27 3 | 24 18 18 26 23 33 25 20 0 37 0 19 33 31 4 | 21 14 21 21 30 31 28 15 0 29 0 32 30 21 5 | 18 16 23 20 29 30 25 24 0 15 0 19 10 20 6 | 31 23 33 28 33 40 38 25 0 33 0 25 32 25 7 | 19 15 14 31 31 45 35 24 0 18 0 25 20 17 8 | 24 25 24 29 40 49 55 31 25 36 6 36 34 26 9 | 11 31 29 33 41 48 44 52 36 47 41 44 47 35 48 10 | 28 37 46 37 41 50 60 54 51 37 33 46 31 30 50 11 | 27 46 29 33 46 45 36 33 46 33 31 25 25 27 44 12 | 11 30 28 25 22 33 31 28 23 25 30 24 21 17 33 13 | 23 18 34 25 23 28 15 21 23 29 42 24 34 27 26 14 | 25 28 30 13 35 30 28 27 21 38 36 42 25 36 33 15 | 28 20 24 24 30 30 21 39 0 29 39 44 39 38 38 16 | 28 17 22 19 32 40 17 27 24 27 33 29 25 24 39 17 | 22 16 27 22 33 20 15 15 10 20 2 20 22 13 18 18 | 4 12 11 11 7 11 13 11 16 11 0 14 13 7 10 19 | 12 6 11 4 9 8 5 11 8 14 0 7 7 7 12 20 | 6 10 6 16 15 10 7 9 9 11 0 7 6 6 11 21 | 3 7 10 11 7 8 7 3 0 7 0 7 7 10 1 22 | 9 12 10 11 9 9 14 4 0 7 0 9 15 6 13 23 | 15 11 14 8 11 18 13 16 0 6 0 22 15 12 27 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2020 Josep / Enric --------------------------------------------------------------------------- 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 CPU N2600 (1.6 GHz) Automatic calculation of the number of signals with the help of Python-script on the basis of MetAn program data Data sampling system: calculation of number of signals is carried out at by visual viewing all kept screenshots. | April 2020 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 4 7 4 2 3 9 3 6 5 8 11 6 5 8 9 1 | 5 4 10 10 4 9 14 8 2 8 7 7 5 14 10 2 | 2 9 6 7 5 7 5 8 3 11 10 4 7 11 6 3 | 12 6 10 8 13 9 11 6 3 10 15 7 8 7 5 4 | 15 13 5 12 18 10 6 3 11 13 12 12 10 10 9 5 | 22 7 9 12 25 11 7 5 9 15 10 11 6 7 7 6 | 13 13 12 19 11 16 8 6 5 13 16 17 6 9 7 | 24 13 20 17 13 8 5 4 9 11 19 17 11 8 | 8 14 9 19 18 12 6 5 17 11 16 17 13 9 | 14 28 21 20 7 21 6 14 11 11 13 7 14 10 | 15 36 22 16 9 10 4 31 10 13 12 5 18 11 | 10 17 11 15 7 11 24 9 13 7 7 5 13 12 | 6 12 7 9 3 4 35 9 3 2 9 8 2 13 | 4 9 3 2 10 15 32 36 2 2 8 4 1 14 | 12 5 5 13 6 11 33 23 3 4 5 3 6 2 15 | 2 4 5 2 1 6 29 19 1 5 6 1 1 4 6 16 | 4 3 7 1 1 14 5 4 2 4 1 3 6 1 17 | 3 1 4 4 1 4 13 4 1 5 5 3 5 1 18 | 4 5 3 10 7 2 5 1 2 3 6 3 4 1 19 | 5 5 3 15 5 5 3 2 3 7 4 2 1 2 20 | 9 8 9 4 11 9 4 2 9 7 5 2 7 6 2 21 | 2 9 11 5 8 8 2 2 7 7 10 5 5 8 4 22 | 7 11 6 6 11 9 9 8 10 8 12 8 12 6 4 23 | 2 8 5 2 7 4 3 3 10 6 5 6 9 6 3 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2020 | April 2020 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 4 6 9 9 4 11 21 13 8 7 15 14 15 12 12 1 | 4 9 8 14 13 21 12 10 9 10 9 15 13 17 2 | 3 6 7 12 3 12 13 2 5 10 5 15 13 15 14 3 | 13 20 9 11 19 12 26 18 19 12 8 11 14 11 20 4 | 6 14 23 19 9 19 12 20 13 11 14 21 13 24 21 5 | 9 15 7 20 21 24 21 11 19 55 11 20 23 12 43 6 | 8 18 20 14 5 26 28 27 26 25 22 38 24 22 40 7 | 10 19 14 22 20 37 21 14 20 18 29 27 8 49 8 | 8 13 18 25 10 44 41 22 20 20 40 24 47 9 | 11 11 22 19 19 35 52 25 25 11 19 38 10 | 9 22 30 19 33 27 30 13 53 11 14 29 11 | 13 46 13 16 13 9 10 15 46 11 14 19 12 | 13 36 25 12 15 6 7 12 19 18 31 26 16 13 | 10 31 34 9 15 12 9 12 7 8 11 19 21 14 | 4 55 12 11 7 9 26 8 5 11 11 12 15 | 6 29 6 8 8 13 3 2 9 4 8 21 13 16 | 4 25 4 4 6 11 9 3 5 3 8 17 3 17 | 5 37 6 8 9 4 5 4 9 4 4 5 17 18 | 8 48 3 7 3 8 7 11 4 4 10 12 24 2 19 | 31 28 7 4 4 17 5 9 7 5 8 11 11 18 20 | 9 32 6 13 14 6 5 4 11 7 11 8 11 17 19 21 | 15 10 5 7 16 21 8 7 5 8 12 5 12 12 33 22 | 9 9 10 6 12 24 18 8 5 10 15 10 18 13 16 23 | 5 11 9 9 17 23 26 12 9 14 11 6 9 8 17 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2020 Ivan Sergey ---------------------------------------------------------------------- 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 270 deg (W), below roof cam Receiver: HRO MRX-50 Computer: Toshiba Satellite 1555CDS, Win98 Observing method: manual count of Speclab recordings | April 2020 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 27 25 33 35 33 36 52 45 29 1 | 30 32 33 50 30 34 35 44 42 2 | 25 33 35 30 39 48 31 39 39 3 | 28 24 35 33 35 43 32 38 37 4 | 28 28 35 40 38 41 28 39 33 5 | 28 18 25 34 29 42 31 26 26 6 | 23 26 21 27 28 30 27 18 22 7 | 18 28 27 30 31 37 23 35 22 8 | 18 19 29 27 23 35 36 20 19 9 | 19 11 9 22 17 12 14 27 19 10 | 13 17 13 20 10 14 19 13 8 11 | 13 18 18 11 9 14 22 20 20 12 | 15 21 12 10 9 21 9 7 19 7 13 | 7 16 18 16 11 14 18 10 15 14 14 | 9 15 16 14 21 16 19 10 17 15 15 | 9 9 13 20 14 11 17 18 13 18 16 | 10 6 15 8 11 12 17 7 13 10 17 | 11 15 9 8 8 8 12 6 12 11 18 | 16 11 8 15 8 10 7 6 11 7 19 | 15 13 13 15 10 17 7 11 16 20 | 17 12 13 12 14 19 17 21 17 21 | 19 16 10 22 25 20 18 14 16 22 | 19 17 13 28 13 23 13 18 11 23 | 23 30 24 30 32 26 27 37 17 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2020 | April 2020 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 35 53 43 30 38 41 55 41 45 51 58 41 42 33 33 1 | 43 44 40 52 41 35 58 53 46 45 60 48 54 29 34 2 | 36 40 41 43 38 38 54 48 42 49 48 37 40 39 37 3 | 42 46 41 42 51 36 58 46 50 41 27 38 34 39 45 4 | 31 38 31 47 41 38 52 30 39 31 39 32 35 41 39 5 | 30 33 31 36 36 39 46 32 29 27 33 42 34 25 25 6 | 24 32 24 36 28 35 45 30 27 35 46 44 44 37 50 7 | 38 37 37 33 24 26 36 36 34 33 41 30 40 42 28 8 | 22 21 18 22 31 22 35 24 22 28 22 24 31 32 13 9 | 16 14 18 23 22 14 14 16 17 12 21 32 37 10 | 13 17 34 20 17 20 16 14 23 16 19 11 | 8 18 21 11 15 12 9 21 15 21 14 22 24 22 12 | 15 9 12 20 13 12 13 9 14 9 17 12 20 20 13 | 13 16 19 22 16 16 15 16 12 19 13 14 16 16 23 14 | 26 15 18 17 21 18 24 15 30 18 14 19 19 22 18 15 | 17 9 18 13 10 13 25 14 18 15 15 12 16 18 18 16 | 12 11 11 15 13 13 11 11 18 21 15 11 8 15 12 17 | 10 16 16 12 9 13 15 13 9 13 11 5 8 11 12 18 | 11 12 8 15 11 11 15 16 17 12 12 11 12 6 5 19 | 11 9 14 9 14 18 18 18 19 14 14 11 20 21 14 20 | 14 22 16 17 18 18 16 15 19 15 15 14 14 18 13 21 | 27 26 20 15 14 16 19 20 18 17 25 23 26 20 32 22 | 13 26 17 32 29 24 30 18 18 36 26 25 20 21 25 23 | 32 36 23 42 34 48 42 30 37 40 42 27 31 41 32 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2020 Note: . installed solar panels on May 9, 2018. View of the antenna partially blocked, and increased interference of the convertor. Chris Steyaert --------------------------------------------------------------------------- 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 hard disks for further analysis. Only overdense meteor reflections are counted manually and used for statistics] Duration >= 2 seconds | April 2020 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 3 1 0 0 3 2 1 0 1 1 | 3 4 1 2 1 3 2 6 0 2 | 1 3 0 0 3 4 2 4 2 3 | 0 3 0 2 4 0 2 2 0 4 | 2 0 3 2 0 0 1 4 2 5 | 2 1 3 1 0 4 4 2 1 6 | 1 1 1 2 2 5 3 3 1 7 | 2 2 6 2 3 3 1 3 9 8 | 3 5 3 3 6 3 1 5 5 9 | 1 1 4 0 3 2 5 1 4 10 | 1 1 0 3 0 5 1 3 4 1 11 | 1 1 2 0 1 1 2 6 2 3 12 | 1 3 0 2 0 2 1 4 1 1 13 | 0 1 1 2 1 2 0 0 0 0 14 | 0 1 0 0 0 0 1 0 1 2 15 | 0 1 1 0 0 2 2 0 0 1 16 | 0 0 0 0 0 1 2 0 1 0 17 | 1 1 0 0 0 0 1 1 2 1 18 | 4 0 1 0 0 0 0 1 0 19 | 0 0 1 0 0 2 0 0 2 20 | 0 1 1 0 3 3 0 0 1 21 | 2 0 0 1 1 1 2 2 0 22 | 1 0 0 3 0 3 1 1 3 23 | 2 0 2 0 1 1 3 5 3 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2020 | April 2020 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 3 2 1 1 1 1 5 1 1 5 4 4 0 3 2 1 | 2 1 2 1 4 2 5 5 2 2 2 1 5 4 1 2 | 4 2 3 2 2 4 9 4 3 10 4 4 2 0 1 3 | 1 3 5 2 0 4 9 5 2 4 2 1 4 4 2 4 | 3 4 5 4 3 2 12 4 5 3 8 6 1 5 4 5 | 3 1 4 1 4 5 10 0 7 8 5 4 2 6 7 6 | 4 2 4 0 3 6 6 4 4 5 9 6 2 6 6 7 | 6 4 5 5 3 2 5 7 6 4 10 4 10 6 11 8 | 2 3 2 1 4 3 8 7 1 2 3 3 7 4 4 9 | 4 1 3 8 3 2 6 5 2 3 4 3 3 5 6 10 | 1 3 0 4 0 0 2 3 2 1 6 3 2 4 7 11 | 4 1 2 3 2 1 1 1 0 3 5 4 4 5 3 12 | 4 1 0 1 1 2 1 3 2 0 2 2 1 1 2 13 | 0 2 1 3 1 0 3 0 0 2 0 3 1 1 1 14 | 1 2 1 0 2 1 0 2 1 2 1 0 2 0 2 15 | 1 0 0 0 0 2 0 0 1 0 2 1 2 1 2 16 | 1 0 0 1 1 1 0 0 1 1 1 0 0 2 1 17 | 0 0 1 1 0 0 0 1 1 0 1 1 1 1 4 18 | 0 1 0 1 1 2 0 0 3 0 1 1 2 0 3 19 | 0 2 0 0 0 1 0 1 1 0 1 0 0 2 0 20 | 1 3 2 2 0 0 2 1 0 1 0 2 1 0 3 21 | 1 3 1 1 0 3 1 2 1 1 2 1 1 4 4 22 | 1 1 0 1 1 1 2 1 2 1 2 1 2 1 8 23 | 2 1 3 1 2 2 4 3 4 4 1 3 3 0 1 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2020 Duration >= 10 seconds | April 2020 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 0 0 0 0 0 0 0 0 0 1 | 0 0 0 0 0 1 0 0 0 2 | 0 0 0 0 0 0 0 1 0 3 | 0 1 0 0 0 0 0 1 0 4 | 0 0 1 0 0 0 0 0 0 5 | 0 0 0 0 0 1 1 0 1 6 | 0 0 0 0 1 1 0 0 0 7 | 0 0 2 0 0 0 0 0 0 8 | 0 0 0 0 0 1 1 0 1 9 | 0 1 1 0 0 1 1 0 1 10 | 0 1 0 1 0 0 0 0 0 0 11 | 0 0 1 0 0 0 0 0 0 0 12 | 0 0 0 0 0 1 0 0 0 0 13 | 0 0 0 2 0 0 0 0 0 0 14 | 0 1 0 0 0 0 0 0 0 0 15 | 0 0 0 0 0 0 1 0 0 0 16 | 0 0 0 0 0 0 0 0 0 0 17 | 0 0 0 0 0 0 0 0 0 0 18 | 0 0 0 0 0 0 0 1 0 19 | 0 0 0 0 0 0 0 0 0 20 | 0 0 0 0 0 0 0 0 0 21 | 0 0 0 0 0 0 0 0 0 22 | 0 0 0 0 0 0 0 0 2 23 | 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 2020 | April 2020 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 1 | 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 2 | 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 3 | 0 0 1 0 0 0 0 1 1 0 0 0 1 0 0 4 | 1 1 1 1 1 0 8 4 2 1 3 0 0 0 0 5 | 0 0 2 0 1 3 3 0 2 1 1 0 0 1 2 6 | 0 0 0 0 3 2 3 1 2 1 2 1 0 2 0 7 | 2 1 1 0 3 0 2 1 1 0 1 1 0 1 2 8 | 1 0 0 0 0 0 4 4 0 0 1 0 2 0 1 9 | 2 0 0 0 0 1 3 0 0 0 0 0 2 1 0 10 | 0 0 0 1 0 0 1 1 0 0 0 0 0 0 0 11 | 0 0 0 0 1 0 1 0 0 1 2 0 0 1 1 12 | 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 13 | 0 1 0 0 0 0 0 0 0 0 0 1 0 0 1 14 | 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 15 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 16 | 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 17 | 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 18 | 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 19 | 0 0 0 0 0 0 0 0 1 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 1 0 0 0 0 0 0 0 1 0 22 | 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 23 | 0 0 0 0 0 0 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 2020 Note: . increased noise since June 12, 2019, normally not affecting the long duration counts. Felix Verbelen ---------------------------------------------------------------------- Observer: Joseph Welkenhuyzen Location: Lanaken, Belgium (5 37' 36" E, 50 53' 35" N) Frequency: 143.05 MHz GRAVES Receiver: Websdr Camras Computer: Laptop I3 Observing method: Speclab, Colorgramme V2.5 | April 2020 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 30 1 | 27 2 | 31 3 | 42 4 | 34 5 | 46 6 | 39 7 | 61 8 | 60 9 | 55 10 | 59 11 | 22 12 | 65 13 | 70 14 | 29 15 | 81 16 | 83 17 | 37 18 | 14 19 | 53 20 | 89 41 21 | 35 55 22 | 29 45 23 | 27 45 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2020 | April 2020 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 44 63 50 43 39 0 62 50 43 49 69 42 36 51 49 1 | 72 93 56 53 58 0 75 51 29 54 59 41 61 57 60 2 | 57 103 89 59 73 0 59 44 44 58 101 62 53 73 54 3 | 62 96 84 74 62 0 83 55 59 63 115 100 59 59 52 4 | 68 111 96 82 65 0 92 44 58 75 157 106 61 95 81 5 | 69 111 84 84 70 0 103 61 68 90 136 157 97 100 97 6 |111 123 148 97 90 0 133 78 71 114 184 125 98 106 99 7 | 38 118 100 96 135 0 120 82 80 125 153 98 97 105 108 8 | 27 138 113 82 88 0 98 69 85 78 168 69 79 94 77 9 | 3 101 63 87 81 80 84 60 53 66 90 61 73 69 87 10 | 3 107 67 116 92 85 91 59 46 72 70 61 83 82 69 11 | 28 129 74 100 81 89 81 61 58 51 83 63 93 83 117 12 | 0 145 71 100 94 81 102 64 79 75 110 83 97 133 105 13 | 3 131 80 87 88 84 116 62 69 65 112 87 80 95 97 14 | 5 102 42 14 77 67 72 57 55 109 90 93 77 83 75 15 | 9 71 56 41 64 48 61 42 51 60 52 87 66 70 51 16 | 86 64 39 38 41 43 45 23 39 74 54 49 42 54 43 17 | 17 57 32 40 36 45 54 34 39 38 36 30 43 38 48 18 | 0 45 24 53 37 68 35 19 28 29 34 36 25 36 44 19 | 91 61 27 49 28 35 36 15 32 38 25 35 21 33 87 20 | 96 49 25 30 39 30 33 28 42 31 22 40 42 32 137 21 | 73 87 37 44 36 44 27 30 45 52 28 48 52 48 22 |123 57 44 44 20 42 28 28 51 54 47 47 42 51 23 | 66 37 51 36 0 44 28 23 47 60 47 51 53 42 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2020 Joseph Welkenhuyzen 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) http://www.telefonica.net/web/enricfraile (in Spanish) http://astrosurf.com/somyce/c_radio.htm Bernard Bayle http://www.bbayle.com Michael Boschat http://www.chebucto.ns.ca/~aa063 Jeff Brower http://members.shaw.ca/jbrower/ Franky Dubois http://www.digilife.be/club/franky.dubois/meteor.html David Entwistle http://www.radiometeor.plus.com/ Karl-Heinz Gansel http://www.radio-astronomie.de/ra/ Peter Knol http://home.deds.nl/~knol Hiroshi Ogawa Radio Meteor Obs. http://www.amro-net.jp/radio.htm Mike Otte W9YS http://mmotte.mystarband.net/ Jochen Plessmann, WHS Walter Hohmann Sternwarte http://www.walter-hohmann-sternwarte.de/ SKiYMET Radar http://www.iap-kborn.de/radar/Radars/ALWIN/index_eng.htm Wayne Sanders http://users.xplornet.com/~rdlobs/ Andy Smith 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): radiometeoren@ls.vvs.be, send 'subscribe' in subject or body to radiometeoren-request@ls.vvs.be Twitter @rmob_org Dave Swan http://www.radiodesignservices.co.uk Istvan Tepliczky Online: http://www.galileowebcast.hu/radiometeor Pierre Terrier http://radio.meteor.free.fr/ Meteor mailing list: mailto:meteor-request@ml.free.fr?subject=subscribe Maarten Vln http://www.vvs.be/werkgroepen/werkgroep-radioastronomie/beelden-radiometeoren-op-internet-zetten Joseph Welkenhuyzen https://sites.google.com/site/rmopv2/home-1 Richard White, Gi4DOH http://www.ramfihaz.com/information.htm -- Christian Steyaert (RMOB2004) 5 May 2020 --