Meteor Observation Bulletin No. 334 www.rmob.org May 2021 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 | May 2021 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 70 68 71 64 61 65 87 61 80 72 72 76 76 69 61 1 | 76 65 63 63 72 71 60 65 59 68 66 69 80 74 74 2 | 74 58 52 63 63 72 71 66 64 69 73 56 75 71 71 3 | 62 57 60 70 70 53 72 68 72 66 75 56 72 51 80 4 | 67 75 68 72 75 86 79 74 82 78 83 84 89 78 79 5 | 77 95 88 87 91 98 97 110 84 91 106 90 87 79 80 6 | 99 81 96 106 81 116 93 99 80 107 101 76 105 102 108 7 | 69 87 92 68 88 95 85 104 77 94 78 79 82 91 80 8 | 49 77 82 64 57 67 87 69 85 65 61 80 74 67 81 9 | 52 65 50 42 64 69 76 68 55 69 63 53 72 41 53 10 | 41 41 50 48 46 49 51 39 60 60 52 47 52 35 39 11 | 37 34 36 42 29 32 34 36 43 35 33 49 31 37 40 12 | 37 26 28 31 43 36 33 38 35 39 41 33 31 30 41 13 | 29 15 24 26 31 29 28 30 24 21 22 27 35 24 24 14 | 23 18 26 23 21 25 20 34 28 25 22 24 41 36 19 15 | 25 12 25 30 20 24 25 19 20 21 30 35 33 37 22 16 | 25 18 21 24 26 23 31 24 13 21 22 22 24 19 13 17 | 22 23 14 23 31 32 22 24 21 21 23 29 26 16 28 18 | 17 27 35 23 25 28 14 20 24 24 26 28 30 34 18 19 | 25 32 35 25 36 19 29 16 24 25 34 38 34 30 42 20 | 43 46 35 32 32 49 44 26 43 53 40 44 46 36 44 21 | 55 48 59 48 49 44 42 53 54 54 48 50 53 44 53 22 | 50 66 62 51 61 52 48 58 66 54 73 67 60 64 73 23 | 61 56 81 72 59 74 74 74 77 72 79 76 76 67 76 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | May 2021 | May 2021 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 ---+--------------------------------------------------------------- 0h| 68 82 74 77 83 86 71 84 71 81 91 66 84 75 87 67 1 | 62 67 69 70 78 66 74 94 75 64 80 67 80 65 84 102 2 | 63 83 49 56 66 90 60 57 84 81 69 76 96 90 85 81 3 | 58 82 64 85 70 82 64 74 85 74 71 64 75 75 89 86 4 | 83 81 85 78 83 86 86 86 75 87 81 71 86 81 103 94 5 | 95 97 102 100 90 100 92 83 104 99 84 86 105 99 116 101 6 |111 102 110 96 96 102 96 108 87 96 96 89 118 98 126 105 7 |110 80 89 78 98 105 109 114 99 85 77 83 93 105 109 120 8 | 67 84 76 70 81 72 96 79 87 82 78 75 95 88 91 103 9 | 55 68 61 64 58 73 53 71 66 59 65 0 82 73 77 78 10 | 53 55 50 43 41 46 57 36 61 61 45 55 54 59 46 42 11 | 40 42 41 38 34 49 34 46 47 40 40 35 50 50 56 45 12 | 41 33 29 27 27 25 28 40 38 42 36 39 42 40 37 38 13 | 25 30 43 52 24 28 32 28 34 32 27 38 41 38 38 45 14 | 28 26 21 26 30 31 34 30 21 35 28 32 33 34 35 30 15 | 25 28 38 25 40 29 26 24 32 41 38 24 31 22 38 36 16 | 31 27 68 23 26 30 28 23 12 30 24 37 36 31 29 17 | 18 24 42 27 23 31 22 20 34 28 33 25 41 30 30 31 18 | 30 33 38 31 33 23 33 29 28 37 33 33 43 31 35 42 19 | 37 37 41 41 37 41 28 42 32 48 39 40 52 41 37 42 20 | 54 47 54 40 47 39 38 47 68 41 58 59 44 57 62 49 21 | 52 67 61 62 63 74 73 63 53 66 60 60 70 57 77 69 22 | 52 68 71 81 68 75 77 85 69 74 67 68 89 64 88 71 23 | 69 79 64 75 69 80 93 78 100 70 72 81 77 71 88 ---+--------------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 | May 2021 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 | May 2021 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 2 9 15 6 13 0 8 14 25 8 15 10 7 12 14 1 | 0 7 5 7 14 0 8 6 118 7 15 7 1 86 3 2 | 17 6 88 22 6 0 6 15 121 6 4 4 6 16 12 3 | 23 15 107 9 12 0 18 13 60 12 12 8 13 27 19 4 | 26 36 92 18 8 0 18 6 62 10 9 13 10 11 15 5 | 26 15 8 16 12 13 15 13 40 36 11 14 12 13 13 6 | 35 13 13 39 38 17 21 20 17 21 14 20 21 18 9 7 | 31 20 18 30 24 16 23 17 49 44 26 12 18 20 22 8 | 92 23 28 36 36 27 27 53 39 50 22 27 24 46 26 9 | 63 35 22 63 85 60 72 53 77 63 40 39 36 40 36 10 |100 64 43 97 96 50 67 92 110 56 40 40 49 34 32 11 | 89 82 47 115 173 147 227 132 31 85 55 68 83 55 53 12 |106 57 52 199 155 145 177 126 0 54 49 126 85 67 80 13 |117 34 91 218 204 114 180 111 0 60 41 103 68 58 81 14 |220 34 97 195 52 261 197 188 0 34 84 57 40 39 55 15 | 85 69 55 122 75 127 122 100 0 30 142 51 48 157 115 16 | 93 65 106 96 60 106 128 69 180 39 47 5 40 38 82 17 | 82 75 81 56 64 133 114 102 60 42 69 22 120 50 109 18 |208 78 70 37 110 78 79 65 88 31 72 21 73 45 55 19 |149 70 75 47 78 78 83 84 70 47 69 32 66 102 63 20 |118 69 56 47 71 72 66 59 78 48 48 18 51 221 52 21 | 84 28 41 37 69 61 97 54 48 31 66 17 30 129 60 22 | 66 16 25 15 38 38 34 55 39 15 36 11 14 69 33 23 | 31 8 16 29 1 17 12 21 17 15 10 0 1 21 15 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | May 2021 | May 2021 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 ---+--------------------------------------------------------------- 0h| 11 8 8 9 0 12 21 11 10 7 10 0 14 18 11 8 1 | 7 9 2 56 6 15 3 9 13 14 34 0 35 24 18 4 2 | 8 1 6 16 7 3 5 29 11 8 16 0 28 32 8 6 3 | 8 2 15 4 25 13 11 16 6 14 29 28 20 14 6 7 4 | 11 17 16 12 8 16 3 10 8 20 24 40 21 9 16 16 5 | 5 12 14 10 16 20 12 27 10 20 20 17 13 14 12 16 6 | 13 16 12 10 12 14 24 15 8 28 17 81 24 19 24 16 7 | 8 19 17 18 26 32 25 28 10 31 31 25 28 26 38 26 8 | 29 32 20 23 41 32 28 41 32 21 35 32 38 39 33 30 9 | 37 33 28 42 42 30 33 32 39 36 41 72 55 34 50 39 10 | 24 27 40 30 46 41 33 42 60 43 33 44 34 59 55 35 11 | 71 48 54 63 48 37 57 131 91 100 52 83 79 59 161 12 | 65 50 57 75 62 29 75 128 9 101 24 56 101 102 174 13 | 89 84 76 69 66 39 74 41 43 70 60 92 69 93 114 14 | 81 41 56 86 48 32 98 77 34 109 50 71 0 88 47 15 | 43 72 58 49 36 26 21 63 0 71 0 66 0 61 52 16 | 44 65 35 51 19 0 55 26 0 57 0 64 0 33 40 17 | 50 65 27 37 36 0 42 39 0 45 0 97 0 31 40 18 | 51 45 38 48 58 0 45 26 88 49 0 60 0 41 47 19 | 43 53 68 78 65 6 89 39 30 49 0 48 0 61 43 20 | 64 62 43 58 71 54 57 54 26 55 0 83 0 65 44 21 | 50 39 54 81 49 89 67 16 38 65 62 40 0 70 45 22 | 24 32 41 25 64 55 46 37 37 32 11 25 0 23 45 23 | 15 1 13 26 4 4 31 16 12 6 0 14 16 11 25 ---+--------------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 | May 2021 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 | May 2021 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 65 43 64 66 66 52 46 58 66 54 66 72 50 57 52 1 | 51 56 60 62 48 45 58 66 63 62 55 59 76 61 53 2 | 57 52 48 38 54 45 76 61 53 62 67 57 53 62 64 3 | 48 58 53 54 72 43 59 52 40 61 65 61 63 65 66 4 | 68 65 54 43 61 51 70 68 64 67 51 62 60 46 67 5 | 67 81 63 64 83 68 73 75 65 61 74 83 75 75 67 6 | 76 73 61 63 75 75 88 54 74 73 79 76 79 66 65 7 | 72 53 61 63 69 79 90 63 59 86 86 75 85 87 74 8 | 67 54 76 71 74 63 83 74 60 62 77 73 74 84 83 9 | 53 51 53 64 57 53 63 59 67 54 51 72 57 68 53 10 | 41 28 41 42 41 48 46 51 77 46 56 54 47 49 42 11 | 33 26 44 51 43 41 64 43 28 40 41 38 49 34 34 12 | 31 25 38 29 53 24 34 41 53 34 47 35 43 43 51 13 | 30 36 33 36 37 33 36 33 29 49 75 29 43 28 63 14 | 33 23 26 30 28 26 46 53 32 32 31 23 37 45 36 15 | 14 33 19 31 64 13 80 28 34 26 34 29 28 23 27 16 | 14 15 58 21 17 24 30 26 25 61 21 31 23 27 21 17 | 15 15 26 19 24 52 19 83 28 17 19 66 13 38 60 18 | 26 20 18 27 25 51 28 17 21 17 31 25 26 22 34 19 | 23 14 12 21 13 20 26 26 20 39 24 29 26 20 27 20 | 22 21 28 20 34 22 32 19 23 28 26 30 24 23 22 21 | 34 33 32 32 25 49 33 36 45 34 30 33 43 38 41 22 | 49 61 38 34 36 47 45 44 45 46 52 49 44 39 46 23 | 42 38 55 54 45 50 60 32 52 55 37 58 86 56 72 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | May 2021 | May 2021 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 ---+--------------------------------------------------------------- 0h| 61 84 69 33 60 64 48 86 64 70 53 63 56 64 53 42 1 | 55 75 56 62 67 69 65 62 57 74 47 57 61 51 65 55 2 | 58 65 57 48 65 61 58 64 77 57 52 61 59 60 57 44 3 | 54 42 55 63 56 65 57 71 48 60 45 57 61 59 57 42 4 | 62 58 73 76 67 79 86 63 48 72 69 67 69 71 58 71 5 | 86 73 70 91 83 66 81 89 58 82 58 85 74 72 80 75 6 | 75 66 70 79 74 77 78 93 93 89 92 70 95 87 86 83 7 | 84 77 87 82 91 82 81 92 98 85 80 66 82 90 80 84 8 | 72 49 89 76 79 89 75 81 94 70 63 67 77 71 73 74 9 | 57 57 65 56 73 69 65 75 64 57 51 48 60 54 48 60 10 | 48 50 71 41 52 50 50 41 51 57 48 40 45 47 79 41 11 | 41 38 47 45 36 44 35 40 46 39 33 28 48 35 52 33 12 | 32 67 32 82 31 36 39 41 36 43 35 46 41 34 23 49 13 | 40 36 42 36 28 34 38 42 27 31 26 46 33 30 31 45 14 | 27 26 43 29 33 48 37 27 47 23 63 33 41 36 25 33 15 | 30 28 29 81 36 51 34 34 27 27 34 29 30 28 27 31 16 | 15 40 31 19 35 28 22 28 25 32 25 25 18 24 18 27 17 | 30 33 26 26 29 28 34 26 35 20 26 29 30 29 34 43 18 | 25 31 21 18 18 22 29 25 17 26 26 29 21 38 20 34 19 | 31 26 22 36 21 28 25 17 30 23 22 20 29 33 29 31 20 | 37 27 30 32 27 32 14 28 25 27 32 33 22 36 34 29 21 | 39 35 44 49 36 37 26 43 43 30 47 41 31 47 31 31 22 | 53 59 50 51 44 36 59 46 48 48 55 43 56 42 45 40 23 | 46 50 57 69 61 63 61 58 64 66 74 60 61 37 63 ---+--------------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 | May 2021 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 | May 2021 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 11h| 64 19 43 00 44 18 85 41 48 60 28 40 42 21 36 12 | 27 14 35 50 50 46 60 32 50 30 30 30 18 30 34 13 | 40 0 44 52 60 31 73 22 58 60 22 30 28 31 52 14 | 26 0 46 48 52 40 54 15 63 38 15 30 26 - 8 15 | - 0 - 47 40 32 84 22 64 21 23 38 38 55 27 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | May 2021 | May 2021 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 ---+--------------------------------------------------------------- 11h| 56 34 43 20 28 30 30 24 35 43 34 - 65 32 6 24 12 | 17 20 32 23 32 16 20 30 20 41 4 - 40 33 2 22 13 | 30 68 58 46 40 19 40 32 40 46 - 35 25 29 50 45 14 | 32 70 22 31 18 32 33 44 15 39 28 35 26 55 20 25 15 | 0 40 30 43 33 40 - 45 2 32 26 40 33 24 - 54 Notes: . 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! . Broke notch filter repaired and now seems I may be getting better reflections. . as of May 30,2021 that strong tone has reappeared and wiped out 77.251 MHz! Mike Boschat ---------------------------------------------------------------------- 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 8ntenna: 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 | May 2021 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 4 6 1 9 8 8 8 5 10 13 12 11 10 11 9 1 | 11 3 6 6 8 4 8 3 10 15 10 4 8 7 13 2 | 8 2 4 8 6 6 14 3 10 8 11 11 12 23 9 3 | 4 16 1 11 8 13 9 9 16 13 12 19 19 15 12 4 | 9 3 4 11 10 11 4 12 18 12 9 18 14 13 5 | 8 1 14 14 8 9 5 12 12 10 15 16 18 13 6 | 11 0 8 11 9 10 8 20 16 22 12 12 11 14 7 | 8 13 4 14 18 13 19 20 20 7 14 25 14 21 8 | 6 1 26 21 8 11 17 15 15 10 9 12 11 18 9 | 0 6 4 13 6 14 11 16 8 12 10 12 15 10 20 10 | 3 11 6 12 10 10 13 8 9 6 7 2 5 10 11 11 | 1 10 4 9 5 5 7 10 6 11 5 9 10 4 9 12 | 4 6 2 15 7 7 4 8 5 19 5 8 15 5 11 13 | 4 9 8 11 16 11 6 8 8 10 9 4 17 9 10 14 | 6 8 5 10 11 13 4 6 3 12 17 8 7 9 6 15 | 7 6 7 11 5 13 4 4 7 10 24 14 8 29 8 16 | 1 7 6 14 10 6 2 6 17 8 20 7 3 17 8 17 | 6 8 10 8 9 7 2 4 11 6 7 12 6 6 6 18 | 2 6 8 4 4 6 2 9 10 8 7 10 12 2 7 19 | 4 1 3 8 2 2 1 12 3 6 3 9 9 5 8 20 | 3 2 4 3 10 7 0 5 2 8 6 8 6 5 7 21 | 5 3 8 11 11 8 1 9 4 9 7 8 7 11 10 22 | 7 4 15 7 7 4 5 9 6 8 5 6 6 7 12 23 | 6 4 11 5 6 16 7 14 10 12 5 14 11 8 11 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | May 2021 | May 2021 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 ---+--------------------------------------------------------------- 0h| 14 13 12 9 9 13 14 12 12 8 14 9 7 8 8 7 1 | 17 11 16 11 8 10 9 14 8 8 15 9 4 12 6 8 2 | 9 3 17 8 12 14 11 9 9 12 6 13 12 12 8 8 3 | 14 16 10 13 6 9 10 9 8 9 7 19 9 15 15 14 4 | 10 10 22 10 10 8 10 12 14 18 11 18 9 16 6 10 5 | 12 14 21 11 3 12 13 12 9 10 9 17 17 15 17 17 6 | 12 10 9 10 18 10 12 16 13 12 9 24 15 19 11 19 7 | 17 15 10 23 13 11 13 14 23 18 13 18 11 15 11 10 8 | 15 15 16 20 12 11 17 11 19 12 10 13 11 7 4 7 9 | 10 16 6 12 6 9 12 6 10 9 10 14 3 6 2 3 10 | 7 8 3 5 6 15 16 6 14 9 10 8 1 5 0 2 11 | 9 11 9 8 3 16 10 8 10 12 7 2 6 6 4 12 | 13 9 6 6 11 9 0 5 5 13 10 12 8 3 1 2 13 | 7 9 14 4 10 7 0 9 4 11 9 7 6 3 4 4 14 | 5 9 10 8 16 22 7 6 13 9 7 2 5 12 11 8 15 | 10 10 6 9 5 4 20 12 12 7 18 7 7 10 8 7 16 | 7 14 7 5 10 9 10 7 12 7 8 7 8 6 6 13 17 | 9 12 11 9 10 8 11 3 17 6 15 6 9 1 9 5 18 | 10 11 8 8 8 9 7 9 8 10 15 8 8 5 5 2 19 | 6 9 6 7 9 11 5 3 8 7 5 6 5 14 6 6 20 | 9 7 3 1 7 7 3 7 7 11 11 4 2 4 4 6 21 | 3 7 9 5 12 6 11 6 12 10 10 4 8 4 8 3 22 | 7 11 9 5 12 6 10 11 7 10 13 13 7 9 9 5 23 | 15 7 6 5 3 8 14 7 5 12 13 5 4 3 8 ---+--------------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 | May 2021 Johan Coussens ---------------------------------------------------------------------- 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 | May 2021 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 32 25 18 20 28 17 7 22 23 18 20 25 20 8 21 1 | 15 24 23 21 18 14 11 20 20 14 11 33 11 6 23 2 | 12 21 21 17 15 16 13 23 28 22 20 27 10 8 17 3 | 29 24 19 11 28 16 10 27 26 20 17 28 14 18 20 4 | 20 23 26 18 30 14 11 34 32 28 24 19 25 16 21 5 | 26 39 35 23 19 50 14 43 36 35 29 28 20 39 19 6 | 31 34 36 31 19 37 12 36 32 44 27 30 35 45 26 7 | 37 34 35 30 30 31 20 48 29 38 44 27 28 25 20 8 | 28 35 35 18 32 32 32 39 24 33 22 31 34 34 28 9 | 19 39 29 18 32 30 31 33 23 24 22 24 26 30 10 10 | 23 20 19 9 22 22 26 18 14 11 17 17 20 12 20 11 | 11 18 13 11 14 15 12 21 17 13 10 7 22 14 32 12 | 18 15 20 9 13 13 13 19 21 13 9 22 15 29 13 | 11 14 7 8 16 15 12 16 9 12 17 23 12 14 14 | 10 14 10 14 16 14 20 14 10 13 16 12 6 15 | 19 13 7 14 25 16 20 10 16 16 10 8 13 13 16 | 16 17 16 6 15 17 14 5 6 8 10 12 8 11 17 | 8 10 13 5 9 8 10 12 17 6 11 7 12 23 4 18 | 11 20 10 3 13 13 10 11 15 8 12 4 4 12 5 19 | 14 15 11 7 16 12 14 15 11 11 13 13 5 11 9 20 | 11 19 11 11 13 19 13 23 11 10 17 8 7 13 3 21 | 17 18 14 19 16 7 24 21 18 10 20 12 8 14 16 22 | 18 23 26 18 14 2 26 19 26 9 26 11 8 14 18 23 | 22 24 27 26 3 5 26 14 19 11 25 15 7 16 22 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | May 2021 | May 2021 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 ---+--------------------------------------------------------------- 0h| 30 21 17 5 10 16 28 5 27 27 35 19 20 31 22 22 1 | 36 16 17 3 5 23 22 5 21 17 34 24 19 32 30 23 2 | 21 8 17 10 8 22 20 9 29 27 34 24 17 26 34 18 3 | 26 14 10 13 10 20 25 10 22 18 34 16 21 17 15 19 4 | 23 18 16 6 6 24 27 8 25 16 44 15 20 19 23 26 5 | 27 28 19 28 21 35 36 9 25 17 49 22 31 27 33 34 6 | 28 29 16 39 35 21 23 22 37 13 48 27 47 32 41 38 7 | 28 37 36 33 40 29 32 36 25 14 32 32 52 54 53 42 8 | 31 27 23 36 28 28 15 30 31 33 35 26 55 46 45 35 9 | 19 15 20 18 25 14 19 21 25 44 25 42 42 31 22 10 | 16 4 23 14 15 15 23 13 26 25 31 18 25 19 11 | 7 8 14 6 16 10 17 8 20 19 18 11 15 34 12 | 13 9 26 11 11 6 11 7 21 26 20 14 13 13 | 9 13 13 7 7 12 5 15 18 23 10 10 12 14 | 5 14 18 16 5 10 6 27 16 20 16 11 15 | 13 15 23 7 3 44 22 17 28 24 12 19 22 29 16 | 8 16 18 7 10 20 17 38 19 10 12 9 13 32 17 | 7 8 22 11 18 14 15 10 28 18 24 17 17 16 23 18 | 5 6 2 18 13 7 14 5 14 13 18 20 12 15 12 12 19 | 8 10 7 14 25 8 21 16 14 12 12 8 16 19 15 13 20 | 4 13 27 9 13 12 12 24 14 14 13 12 18 37 19 11 21 | 2 8 8 9 25 16 6 37 10 25 20 20 26 31 32 9 22 | 9 18 6 10 16 31 14 21 18 25 18 28 23 21 22 23 | 14 12 5 15 16 24 24 26 16 30 25 22 18 24 27 ---+--------------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 | May 2021 Jochen Plessmann ---------------------------------------------------------------------- Observer: Kees Meteor Location: Kattendijke, 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 | May 2021 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 1 0 2 1 | 2 0 1 2 | 5 2 0 3 | 1 1 6 4 | 2 1 5 5 | 0 2 5 6 | 3 0 7 7 | 2 3 6 8 | 4 3 7 9 | 1 2 8 10 | 3 2 5 11 | 1 0 2 12 | 4 1 0 2 13 | 3 3 0 1 14 | 0 0 2 2 1 15 | 1 0 0 5 1 16 | 3 2 4 3 4 17 | 0 1 2 2 0 18 | 1 1 2 0 2 19 | 0 2 1 1 1 20 | 1 0 0 2 0 21 | 1 0 0 0 22 | 0 0 1 3 23 | 2 2 2 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | May 2021 | May 2021 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 ---+--------------------------------------------------------------- 0h| 1 2 1 0 1 3 0 0 0 3 1 2 0 3 1 | 0 2 3 2 1 3 3 0 0 2 7 5 2 1 2 | 5 4 2 0 3 2 2 0 0 3 2 4 5 1 3 | 1 0 1 2 2 3 5 0 0 2 3 0 2 2 4 | 2 2 4 2 2 4 4 0 0 2 3 2 2 3 5 | 1 2 0 5 1 6 0 0 0 4 1 5 4 3 6 | 5 4 1 1 4 4 4 0 0 5 2 1 4 5 7 | 5 2 0 3 4 5 1 0 0 9 4 6 3 3 8 | 13 4 4 3 13 2 3 0 0 10 10 6 6 8 9 | 11 7 13 2 8 7 7 0 0 3 3 5 8 11 10 | 4 3 8 9 6 1 1 0 0 3 5 2 4 6 11 | 3 2 0 1 3 1 1 0 0 2 3 0 2 6 12 | 3 2 2 4 1 2 1 0 0 2 4 1 1 7 13 | 3 1 6 0 4 4 2 0 0 3 0 2 2 1 14 | 2 0 1 0 1 0 4 0 0 1 2 0 3 6 15 | 5 3 0 3 1 5 3 0 0 2 3 2 5 2 16 | 0 2 0 4 2 6 2 0 0 3 4 1 3 1 17 | 2 2 1 4 1 0 0 0 0 2 0 0 3 2 18 | 0 1 3 1 3 0 1 5 0 3 0 5 4 2 1 19 | 1 4 3 2 0 4 1 1 0 1 0 0 1 1 0 20 | 1 1 2 0 3 0 2 0 0 0 1 0 2 3 0 21 | 1 1 0 1 1 0 2 0 0 1 2 2 0 3 2 22 | 0 0 0 2 6 2 1 0 0 1 1 0 0 3 23 | 1 0 0 2 4 3 8 0 0 1 0 3 2 1 ---+--------------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 | May 2021 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 | May 2021 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 20 21 23 9 27 22 37 18 20 31 25 27 37 25 25 1 | 32 26 10 18 18 31 22 17 17 25 24 42 34 23 21 2 | 23 32 16 23 30 28 23 22 20 32 35 28 37 49 26 3 | 34 33 23 23 30 35 32 22 24 32 17 31 40 54 21 4 | 27 27 25 17 22 23 21 19 26 31 35 38 35 66 30 5 | 36 38 21 26 35 27 19 28 33 32 42 51 32 61 24 6 | 41 24 27 31 34 36 43 27 30 31 37 51 31 40 43 7 | 29 22 28 41 48 52 30 43 14 23 43 50 28 40 35 8 | 33 33 18 26 32 39 49 33 36 36 39 47 29 29 28 9 | 30 22 25 24 23 35 52 24 34 29 31 45 24 24 19 10 | 32 35 32 32 27 32 50 27 25 52 38 43 22 35 18 11 | 24 16 23 29 26 24 40 25 27 31 34 48 19 31 16 12 | 27 24 18 21 16 40 55 15 20 23 27 37 32 39 30 13 | 28 14 16 21 22 37 43 20 24 12 25 29 32 23 26 14 | 23 10 23 40 27 40 49 16 55 26 17 34 38 20 24 15 | 24 26 19 25 36 47 55 17 23 40 18 29 19 53 21 16 | 10 18 47 10 26 17 22 20 13 35 11 57 26 19 22 17 | 17 17 12 27 12 50 11 56 13 15 18 47 22 23 19 18 | 15 16 23 29 18 28 19 15 13 12 11 37 18 34 10 19 | 7 15 9 22 16 11 12 13 17 20 18 33 22 50 21 20 | 15 12 16 15 9 8 45 18 22 18 17 19 10 27 11 21 | 9 15 17 17 11 16 20 16 19 17 13 21 14 9 10 22 | 20 14 14 23 21 22 10 10 31 28 24 46 18 19 32 23 | 22 19 22 28 11 19 20 17 30 31 29 33 22 30 16 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | May 2021 | May 2021 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 ---+--------------------------------------------------------------- 0h| 23 41 17 23 15 21 29 30 15 28 23 21 13 27 22 19 1 | 12 64 18 13 23 19 21 25 15 20 20 14 28 24 28 20 2 | 16 33 21 11 23 21 27 26 19 24 3 24 25 15 26 31 3 | 21 21 21 14 24 22 26 18 26 31 29 18 30 25 19 34 4 | 27 37 40 16 22 16 19 30 25 29 23 21 28 22 28 29 5 | 33 49 59 23 26 30 35 37 34 50 28 31 39 34 59 32 6 | 32 34 29 29 33 22 27 40 29 26 23 33 30 32 42 48 7 | 25 29 35 36 28 17 38 33 20 48 28 44 26 35 43 29 8 | 25 23 31 29 20 15 26 33 24 33 30 30 32 34 29 28 9 | 22 22 20 21 17 20 34 27 21 22 21 36 24 18 24 24 10 | 23 16 20 24 23 16 33 25 21 29 19 19 23 33 26 25 11 | 20 16 22 19 28 20 18 27 20 17 18 19 22 23 32 21 12 | 20 24 16 28 20 20 26 27 30 32 10 28 30 25 17 17 13 | 20 13 18 24 30 21 17 23 14 46 20 29 17 21 22 22 14 | 24 12 18 31 17 44 16 27 32 33 21 27 30 25 33 21 15 | 28 12 28 27 16 23 17 19 50 11 16 26 28 16 21 45 16 | 13 14 16 21 18 19 29 29 41 17 24 24 29 21 18 43 17 | 14 10 16 21 20 16 17 20 1 20 19 20 31 18 25 31 18 | 14 15 15 18 15 18 18 13 18 17 11 18 48 21 19 23 19 | 14 15 10 14 15 24 10 14 14 15 2 18 33 24 20 26 20 | 12 15 11 15 11 14 16 19 18 13 17 15 36 19 20 26 21 | 16 36 16 32 11 15 15 13 2 21 18 22 23 22 25 18 22 | 18 37 13 40 15 19 16 25 20 29 20 14 18 23 22 14 23 | 11 58 16 49 20 23 21 16 33 24 4 21 20 26 27 ---+--------------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 | May 2021 Fabio Moschini --------------------------------------------------------------------------- Observer: Stan Nelson Location: Roswell, New Mexico, USA (33 27' N, 104 31' W) Frequency: 54.31 MHz Antenna : 6M Beam, az 280 deg, elev 15 deg Receiver: AirSpy Computer: HP desktop Observing method: Spectrum Lab Colorgramme RMOB Lab v 3.0 | May 2021 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 4 0 0 0 9 1 3 2 31 16 11 6 22 15 1 | 4 0 0 0 2 2 2 1 24 18 14 10 16 11 5 2 | 3 0 0 0 4 8 9 3 14 8 8 18 17 18 5 3 | 3 0 0 0 11 5 7 2 5 10 15 8 20 22 12 4 | 8 0 0 0 17 7 10 5 22 3 19 13 27 17 18 5 | 24 0 0 0 25 17 18 11 33 2 13 17 18 27 32 6 | 27 0 0 0 23 32 16 14 31 0 12 16 15 27 37 7 | 33 0 0 0 25 33 35 14 44 2 11 12 8 26 41 8 | 50 0 0 0 38 39 53 12 47 1 20 9 20 25 38 9 | 63 0 0 0 42 34 49 22 51 1 28 12 26 26 43 10 | 61 0 0 0 67 74 71 37 48 1 25 34 25 22 61 11 | 57 0 0 0 86 89 81 47 54 1 29 47 45 7 78 12 | 70 0 0 0 68 87 77 63 55 11 48 49 36 19 65 13 | 65 0 0 0 23 95 73 61 76 28 48 50 44 21 79 14 | 69 0 0 0 96 96 108 57 71 51 61 64 52 11 65 15 | 76 0 0 0 80 87 101 69 71 60 59 59 57 22 59 16 | 65 0 0 4 79 77 110 57 60 54 56 66 26 24 54 17 | 67 0 0 57 9 78 72 51 69 62 60 49 49 26 30 18 | 53 0 0 61 0 68 65 48 55 45 41 33 41 29 32 19 | 51 0 0 47 29 47 46 42 29 25 33 36 31 39 22 20 | 20 0 1 37 51 44 25 23 30 15 36 34 37 50 34 21 | 0 0 0 24 26 27 14 22 24 19 30 24 26 25 10 22 | 0 0 0 12 19 20 10 21 20 15 11 17 17 22 7 23 | 0 0 0 8 7 11 6 12 13 9 14 16 13 12 6 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | May 2021 | May 2021 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 ---+--------------------------------------------------------------- 0h| 1 5 11 5 19 5 11 11 1 3 6 1 2 139 2 41 1 | 1 3 4 8 18 6 6 3 9 4 3 6 7 33 6 49 2 | 2 7 4 1 14 3 12 5 10 5 20 0 4 5 3 15 3 | 4 6 4 5 5 18 11 4 37 4 53 39 3 20 11 16 4 | 11 24 18 13 25 8 12 11 20 11 43 36 21 25 17 13 5 | 15 24 32 16 14 15 15 13 14 16 32 22 20 21 18 36 6 | 12 21 19 20 9 25 32 28 27 24 24 25 21 38 22 42 7 | 13 19 22 27 19 31 34 31 24 26 25 28 15 25 40 44 8 | 20 14 29 32 17 21 35 46 31 28 30 29 15 41 25 43 9 | 20 18 33 39 38 31 31 58 53 44 17 42 31 62 42 76 10 | 34 9 40 49 41 43 28 48 59 36 13 37 27 70 43 75 11 | 36 14 49 46 35 44 44 50 57 43 15 30 13 50 50 99 12 | 41 20 19 36 22 28 35 50 55 49 21 47 44 55 45 110 13 | 42 20 21 14 38 34 33 57 46 43 23 49 40 62 49 68 14 | 54 28 33 39 31 9 39 59 59 57 21 48 44 66 72 11 15 | 55 25 64 44 33 53 50 70 29 81 1 59 27 73 67 41 16 | 40 42 57 50 28 0 24 66 15 21 17 50 62 53 60 48 17 | 41 34 38 30 41 25 27 32 36 22 22 21 31 45 37 7 18 | 29 33 35 25 17 1 32 24 21 23 26 37 33 44 61 12 19 | 39 32 35 22 15 12 21 19 24 36 19 32 43 36 105 34 20 | 27 29 51 21 141 34 29 4 29 53 21 45 31 34 49 51 21 | 20 21 48 23 104 22 26 23 22 30 22 21 26 32 51 44 22 | 17 7 19 23 89 17 22 17 17 23 17 35 21 15 164 50 23 | 4 12 6 8 19 10 21 11 16 16 1 5 125 5 60 ---+--------------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 | May 2021 Stan Nelson --------------------------------------------------------------------------- Observer: Mike Otte Location: Pearl City, IL, USA (42 13' N, 89 51' W) Frequency: 61.2595 MHz as from Jan 2021 Antenna : 5 elem Yagi, az 180 deg, elev 60 deg, TV usb preamplifier Receiver: Nooelec NESDR Computer: Dell Optimus 960 Observing method: Spectrum Lab Colorgramme RMOB Lab v 2.3 Total Counts | May 2021 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 42 72 36 45 81 75 70 59 68 65 80 59 82 84 64 1 | 50 59 198 77 116 124 90 90 77 92 109 96 124 123 100 2 | 89 74 206 105 135 128 108 138 127 123 172 163 168 165 143 3 |134 147 82 180 176 185 173 173 211 159 178 189 187 230 227 4 |170 153 131 205 231 229 237 274 239 213 253 285 273 300 314 5 |200 193 172 256 316 304 341 325 256 291 285 346 376 367 345 6 |247 190 185 295 292 322 357 342 242 333 297 345 371 423 364 7 |198 179 175 288 325 300 365 375 302 333 345 335 400 405 375 8 |203 198 158 244 302 269 342 337 264 334 277 348 322 387 363 9 |192 162 169 326 303 309 347 344 275 270 266 381 349 426 372 10 |230 220 223 340 340 329 385 376 304 294 339 408 360 416 436 11 |236 257 330 367 349 397 422 414 413 367 398 398 423 427 420 12 |257 268 408 373 426 418 482 475 402 387 406 423 482 441 442 13 |305 314 352 429 433 408 472 443 424 396 442 461 493 444 14 |274 296 342 370 353 415 434 397 385 378 385 355 466 492 15 |248 240 346 319 310 343 379 358 325 335 328 370 401 432 16 |196 119 239 222 283 260 312 233 264 249 287 281 286 311 17 |120 85 146 144 162 177 254 152 227 139 143 174 196 171 18 | 73 53 116 94 94 110 179 93 96 107 117 110 152 124 19 | 72 33 91 62 91 99 152 76 76 84 111 84 100 100 20 | 67 44 87 74 89 92 133 88 70 106 115 83 112 108 21 | 59 39 69 61 75 72 127 81 106 89 95 77 92 87 22 | 38 36 54 66 62 51 60 65 49 64 76 96 83 77 80 23 | 31 56 42 50 62 57 63 59 75 73 87 62 73 70 71 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | May 2021 | May 2021 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 ---+--------------------------------------------------------------- 0h| 96 74 69 53 41 73 80 55 95 66 65 79 38 39 50 152 1 |120 104 122 64 264 97 80 67 74 64 87 108 63 54 45 93 2 |172 132 140 140 118 101 99 98 105 117 91 136 96 60 136 173 3 |219 182 200 156 131 153 151 176 146 111 135 190 122 105 124 129 4 |301 238 257 161 224 228 231 232 166 196 234 159 120 168 186 5 |339 293 311 226 311 232 310 250 217 256 301 216 140 202 199 6 |389 377 375 208 316 300 304 287 248 271 318 192 150 207 204 7 |331 405 362 233 283 287 344 246 244 268 332 196 153 224 221 8 |348 386 325 203 292 237 303 227 211 259 289 200 122 233 198 9 |349 363 314 201 278 267 252 204 191 247 300 177 137 178 190 10 |372 379 370 227 321 277 313 228 235 312 293 180 159 225 236 11 |394 364 425 280 329 278 397 272 228 355 325 208 169 309 271 12 |476 414 458 268 357 321 432 327 243 362 369 271 258 277 257 13 |491 440 455 340 371 321 420 362 276 352 348 248 219 295 265 14 |447 437 404 339 320 328 302 375 331 257 304 328 200 238 335 267 15 |374 391 349 246 267 295 237 342 289 215 317 310 182 240 76 266 16 |286 272 308 213 143 192 190 260 190 149 244 234 122 140 206 175 17 |177 167 54 85 103 125 79 185 126 91 148 146 67 93 157 93 18 |113 106 42 87 204 102 65 171 89 52 107 70 43 62 77 66 19 | 99 116 30 94 84 114 51 123 68 52 71 70 64 51 60 62 20 | 90 92 36 66 93 103 85 114 76 43 74 10 62 40 80 95 21 | 85 82 42 98 55 120 60 74 88 63 71 12 43 42 63 129 22 | 65 70 53 187 56 101 49 122 66 59 67 7 37 71 55 66 23 | 82 83 44 174 56 70 39 141 67 54 63 22 65 44 120 ---+--------------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 | May 2021 Mike Otte ---------------------------------------------------------------------- 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 | May 2021 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 33 28 27 29 20 25 17 27 27 22 18 17 25 18 24 1 | 18 41 23 18 23 27 22 23 32 23 26 28 20 17 25 2 | 23 26 21 31 24 22 21 23 25 25 25 35 20 21 21 3 | 35 28 28 19 22 24 27 36 24 29 26 30 29 32 21 4 | 28 27 33 25 17 22 38 33 33 35 26 31 18 16 25 5 | 19 25 27 30 31 32 33 31 37 29 33 24 29 23 30 6 | 25 28 33 34 32 28 22 30 30 35 24 39 22 32 25 7 | 24 25 27 20 24 29 23 29 23 28 33 20 24 20 32 8 | 17 27 18 21 28 19 19 24 24 26 19 17 13 18 22 9 | 8 15 10 11 14 17 18 25 18 21 15 17 8 9 10 | 13 16 5 9 9 13 11 17 11 12 9 11 12 10 16 11 | 11 16 11 13 12 19 7 12 19 8 12 9 13 8 17 12 | 14 12 12 14 13 23 22 16 12 4 11 15 10 9 12 13 | 28 13 14 13 12 22 15 17 14 14 27 20 14 16 16 14 | 20 17 19 12 20 15 19 22 14 14 19 10 8 20 13 15 | 14 13 9 11 12 18 15 14 11 20 16 8 14 9 12 16 | 10 19 15 15 13 12 16 14 8 13 12 11 16 13 17 | 5 5 8 9 15 5 14 10 11 11 13 14 7 10 9 18 | 15 13 10 6 12 11 8 4 8 14 8 8 14 11 12 19 | 15 10 16 14 11 16 14 10 13 6 10 5 14 10 9 20 | 12 7 9 13 12 8 14 15 14 7 10 10 11 14 12 21 | 20 19 15 17 20 15 16 18 13 9 22 12 22 20 13 22 | 26 20 20 12 25 12 22 19 13 17 18 21 15 14 13 23 | 29 29 19 14 25 28 24 17 16 22 28 21 20 27 15 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | May 2021 | May 2021 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 ---+--------------------------------------------------------------- 0h| 18 21 20 33 22 20 27 26 27 20 23 15 15 30 19 22 1 | 22 23 28 20 22 25 25 21 22 20 16 19 22 27 31 28 2 | 27 21 21 22 25 32 23 16 29 30 21 19 26 32 29 24 3 | 15 29 25 23 27 22 32 18 26 20 25 24 22 25 33 32 4 | 24 24 18 25 20 29 21 17 26 21 24 27 26 30 31 23 5 | 27 31 26 23 27 20 19 28 22 34 44 36 32 25 44 40 6 | 34 34 21 48 34 31 24 32 32 19 33 33 29 30 36 27 7 | 28 29 31 38 31 27 13 22 24 17 25 36 33 38 31 27 8 | 17 21 22 17 17 18 25 23 19 21 23 26 20 19 14 20 9 | 11 11 10 11 16 14 13 15 7 14 20 21 13 20 10 10 | 15 6 11 9 14 12 22 12 7 14 10 17 8 10 10 11 | 4 9 8 3 11 11 12 10 6 9 11 9 8 12 10 12 | 14 8 10 16 9 15 10 9 6 7 12 13 12 8 8 11 13 | 14 22 13 13 14 12 18 11 11 13 13 16 16 7 9 15 14 | 11 23 16 21 25 14 18 19 20 16 21 25 23 20 16 18 15 | 13 9 15 15 13 23 17 12 19 16 20 13 14 13 12 20 16 | 9 13 18 17 14 20 15 15 11 17 14 12 12 11 11 17 17 | 8 8 16 10 13 13 12 6 9 16 12 10 15 16 8 17 18 | 4 7 6 11 10 17 9 9 6 9 13 15 14 19 11 13 19 | 11 12 6 12 11 18 14 11 5 7 8 12 13 10 10 5 20 | 10 16 15 15 14 10 9 19 10 11 19 14 7 13 13 17 21 | 12 12 22 13 25 22 13 14 12 13 15 10 14 14 10 12 22 | 17 21 20 24 20 23 15 15 16 24 7 20 19 21 15 20 23 | 15 18 25 28 22 19 15 15 19 23 9 11 18 20 19 22 ---+--------------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 | May 2021 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 | May 2021 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 5 4 2 1 3 9 3 3 1 1 0 1 3 2 0 1 | 3 2 1 0 3 2 5 1 1 3 2 5 2 8 3 2 | 2 3 2 4 4 4 1 5 3 2 2 2 2 3 2 3 | 5 3 1 3 4 10 5 9 2 4 3 4 3 3 3 4 | 5 6 6 6 7 9 12 17 4 2 9 7 3 1 4 5 | 10 7 6 10 5 15 15 9 5 7 10 5 7 7 4 6 | 4 10 11 10 11 13 9 10 5 9 5 9 4 4 4 7 | 8 3 13 14 12 18 11 8 6 5 0 6 13 2 7 8 | 8 9 11 6 10 10 19 7 10 7 11 3 7 6 3 9 | 6 9 9 11 8 9 9 10 6 4 9 6 5 3 2 10 | 5 6 5 6 4 7 10 8 5 2 5 2 5 7 1 11 | 2 3 5 5 4 4 6 2 4 1 6 1 6 4 3 12 | 2 5 1 4 1 2 6 5 3 0 3 3 3 4 5 13 | 4 2 1 3 3 3 5 6 2 3 4 6 3 2 2 14 | 1 3 1 3 6 3 4 2 1 3 2 2 1 1 0 15 | 2 1 0 1 2 2 2 1 2 4 0 1 1 0 1 16 | 2 0 0 0 2 2 5 1 1 1 0 2 2 1 1 17 | 0 0 2 1 0 0 2 2 4 1 1 0 0 0 1 18 | 1 3 0 0 2 1 1 0 3 1 2 0 1 0 0 19 | 0 2 2 0 3 0 2 2 1 0 0 1 1 0 0 20 | 1 0 0 1 1 1 2 3 0 3 1 0 0 0 3 21 | 1 1 0 6 4 5 1 1 2 0 0 1 3 0 2 22 | 1 0 4 3 6 0 1 0 2 3 1 0 5 1 1 23 | 2 0 2 2 3 1 1 1 1 3 3 4 0 1 1 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | May 2021 | May 2021 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 ---+--------------------------------------------------------------- 0h| 2 1 2 1 5 3 1 3 1 3 2 5 3 2 7 1 1 | 2 2 4 0 3 4 3 3 1 2 2 2 2 2 3 5 2 | 3 7 2 2 4 4 3 1 1 3 2 4 7 4 2 5 3 | 2 1 6 4 8 4 2 0 1 3 2 1 4 2 5 7 4 | 6 2 4 4 1 2 3 5 3 1 2 5 6 4 4 3 5 | 4 3 11 4 3 4 3 1 6 1 6 9 6 10 15 2 6 | 9 8 3 4 12 10 1 2 9 4 5 8 8 3 7 6 7 | 5 5 10 11 5 9 6 5 5 3 11 9 9 15 12 4 8 | 3 6 14 5 2 4 8 13 8 7 8 9 10 8 12 11 9 | 3 4 7 1 7 11 0 0 6 2 8 5 5 6 7 10 10 | 2 1 7 1 4 3 3 3 4 2 3 3 3 2 5 4 11 | 0 4 6 1 2 4 2 1 5 1 1 1 3 2 2 5 12 | 1 3 7 3 2 0 2 3 2 2 4 3 4 3 1 2 13 | 3 4 5 0 3 0 2 3 2 2 3 2 2 1 1 7 14 | 1 5 5 1 3 5 4 3 2 1 4 0 3 4 0 2 15 | 2 2 1 2 1 2 1 2 0 3 4 0 3 2 2 3 16 | 2 0 1 2 2 1 0 0 1 4 2 0 1 1 0 4 17 | 0 1 3 5 2 2 2 0 2 2 0 1 0 2 0 2 18 | 1 2 1 3 0 0 3 0 0 1 0 0 1 3 1 1 19 | 2 1 0 2 1 0 3 2 0 1 2 0 2 1 0 2 20 | 1 2 0 2 2 0 0 2 1 1 0 3 0 0 2 1 21 | 0 1 2 3 0 2 0 3 1 0 2 0 2 1 2 2 22 | 0 0 7 3 2 1 2 2 2 3 3 0 2 1 4 0 23 | 2 2 4 1 1 1 3 2 1 2 2 0 1 3 1 3 ---+--------------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 | May 2021 Duration >= 10 seconds | May 2021 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 0 1 0 0 0 1 1 0 0 0 0 0 1 0 0 1 | 2 0 0 0 0 0 0 1 1 2 1 1 1 0 2 2 | 0 0 0 0 1 2 0 2 0 0 0 0 0 0 0 3 | 1 1 0 2 1 2 1 1 0 1 1 0 0 1 0 4 | 0 1 1 0 1 2 0 6 1 0 1 1 3 1 3 5 | 0 1 2 2 1 2 6 1 2 1 0 1 2 1 0 6 | 1 2 3 2 2 4 3 2 0 2 2 2 0 0 1 7 | 1 1 2 4 1 5 1 0 0 1 0 1 1 0 1 8 | 1 3 1 2 2 1 1 0 0 0 0 1 2 0 0 9 | 1 0 1 4 1 0 3 1 0 0 0 0 1 0 0 10 | 0 1 0 2 0 0 0 1 1 0 0 0 0 0 0 11 | 0 0 0 0 0 1 0 0 0 0 1 0 0 1 0 12 | 0 0 0 0 0 1 0 1 0 0 0 1 0 0 1 13 | 0 0 0 0 1 0 1 1 0 0 0 0 0 0 1 14 | 0 1 1 0 1 0 1 0 0 0 0 0 0 0 0 15 | 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 16 | 0 0 0 0 0 0 1 0 0 0 0 1 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 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 1 0 0 0 0 0 0 0 0 0 0 0 22 | 0 0 0 0 0 0 0 0 0 2 0 0 1 0 0 23 | 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | May 2021 | May 2021 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 ---+--------------------------------------------------------------- 0h| 0 0 0 1 0 0 0 0 0 0 1 1 0 0 1 0 1 | 0 0 1 0 0 0 0 1 0 1 1 0 0 0 1 1 2 | 1 0 0 0 2 1 0 0 0 0 0 1 1 0 0 0 3 | 1 0 0 1 1 1 0 0 0 1 0 0 0 0 0 1 4 | 2 0 1 0 0 0 2 1 0 0 1 0 2 0 0 1 5 | 0 0 1 0 0 0 0 0 1 0 0 1 0 0 0 0 6 | 2 1 1 1 0 1 0 0 1 1 0 0 1 0 2 0 7 | 0 0 2 1 1 1 1 1 0 0 2 0 0 1 1 0 8 | 0 0 0 0 0 0 0 1 2 0 1 0 1 0 0 3 9 | 1 1 0 0 0 0 0 0 0 0 1 0 0 0 1 2 10 | 0 0 1 1 0 1 0 0 0 0 0 1 0 0 0 2 11 | 0 1 1 0 0 0 0 0 0 0 1 0 0 1 0 0 12 | 0 0 0 0 1 0 0 0 1 0 1 0 2 1 0 1 13 | 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 1 14 | 0 1 0 1 0 1 2 0 0 1 0 0 0 0 0 0 15 | 0 2 0 0 0 0 0 0 0 1 0 0 1 1 1 0 16 | 0 0 0 0 0 1 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 0 18 | 0 0 0 0 0 0 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 0 20 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 21 | 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 22 | 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 23 | 0 0 1 0 0 1 0 0 0 0 0 0 0 1 0 0 ---+--------------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 | May 2021 Note: . increased noise since June 12, 2019, normally not affecting the long duration counts. 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) 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 mailto:mike.otte96@gmail.com Enrico Stomeo, Planetario di Venezia http://www.astrovenezia.net/planetario.htm 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 https://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 (RMOB2105) 7 June 2021 --