Radio Meteor Observation Bulletin No. 369 www.rmob.org April 2024 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 2024 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 90 83 74 90 63 84 115 111 119 101 122 126 110 103 120 1 |122 87 113 101 87 85 104 131 139 109 124 128 117 146 147 2 |100 91 101 94 97 93 129 130 141 147 150 110 113 138 133 3 | 85 69 105 92 95 98 106 115 108 114 117 112 142 139 124 4 | 79 65 89 81 75 94 91 91 97 117 111 116 125 109 110 5 | 72 66 81 94 88 94 127 117 110 125 111 91 116 119 104 6 | 78 60 73 76 86 84 106 111 108 112 91 107 115 127 100 7 | 67 75 86 93 74 94 94 92 103 110 116 117 121 140 128 8 | 60 64 73 92 74 111 100 114 105 129 110 117 125 124 9 | 76 100 77 89 84 109 112 110 125 122 112 132 136 154 10 | 72 83 90 80 74 93 94 105 116 121 105 123 101 124 11 | 78 84 78 84 66 101 116 97 93 123 120 109 134 123 12 | 70 63 62 65 72 98 103 112 97 97 89 105 113 91 13 | 63 62 56 62 54 52 93 104 88 104 111 96 98 124 112 14 | 52 58 56 55 44 71 80 90 78 65 76 75 83 85 78 15 | 36 33 46 48 43 70 68 43 58 65 58 57 55 60 45 16 | 42 26 30 28 29 46 41 54 49 51 41 65 54 47 40 17 | 21 30 29 26 22 43 48 49 51 46 41 53 37 41 53 18 | 18 30 23 31 31 37 44 41 26 39 44 57 56 39 53 19 | 33 32 38 25 40 50 50 42 51 44 54 48 50 47 39 20 | 48 36 32 40 33 55 53 75 60 66 57 61 54 59 42 21 | 38 41 45 53 49 74 82 76 80 62 85 47 89 79 71 22 | 60 61 64 60 65 92 61 85 82 80 99 77 83 92 87 23 | 69 82 80 55 65 97 89 99 87 100 103 113 103 97 104 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2024 | April 2024 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h|115 128 113 120 135 115 121 134 61 118 113 98 95 120 117 1 |115 124 129 135 141 137 118 135 88 111 130 113 117 113 117 2 |123 128 131 117 138 143 163 137 101 108 116 124 112 131 137 3 |108 114 123 133 119 130 129 110 104 133 118 107 144 113 139 4 | 94 120 115 114 113 125 106 83 107 129 113 134 114 133 130 5 |101 104 133 93 125 127 104 122 106 126 104 120 127 123 115 6 |112 113 136 118 136 112 117 113 125 120 145 118 140 131 129 7 | 98 110 120 116 112 135 135 131 116 122 118 133 141 141 119 8 |137 111 104 103 135 125 134 103 126 118 114 88 130 117 143 9 |135 117 122 127 101 133 136 93 119 110 109 127 125 141 144 10 |113 124 143 109 113 133 118 106 102 122 111 125 129 140 122 11 | 96 115 120 116 98 112 120 101 92 103 111 116 89 93 125 12 |117 99 110 114 113 121 126 96 87 107 107 94 116 107 106 13 |125 109 90 86 103 96 107 107 105 81 93 85 105 86 86 14 |133 119 83 88 92 20 69 64 88 80 86 92 82 73 75 15 |119 126 73 65 82 68 60 44 53 55 64 48 73 63 67 16 | 42 72 38 57 54 55 57 54 49 57 43 64 55 55 44 17 | 47 38 51 36 43 56 21 37 53 46 49 37 57 66 39 18 | 45 36 42 55 52 43 22 42 37 35 47 32 50 47 53 19 | 41 51 54 36 52 37 28 32 44 44 59 26 58 46 42 20 | 63 51 66 55 66 52 22 34 51 49 55 30 39 51 58 21 | 80 81 92 68 71 75 68 40 73 55 66 40 47 92 79 22 | 83 87 92 102 86 87 81 55 84 74 91 51 58 98 90 23 |109 118 105 110 102 114 116 60 91 100 112 92 119 115 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2024 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 2024 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 1 13 4 7 10 2 18 8 11 6 1 | 2 9 12 3 6 9 12 7 6 2 | 3 1 5 5 13 1 4 8 8 3 | 3 3 4 8 1 2 4 4 2 4 | 2 1 3 6 3 1 7 5 9 5 | 14 2 4 4 4 3 5 2 9 6 | 10 3 5 4 19 2 5 5 10 7 | 9 6 2 3 10 2 11 2 15 8 | 14 3 5 7 4 6 20 13 12 9 | 24 10 10 5 9 5 17 7 35 10 | 23 22 9 16 12 7 30 14 27 11 | 26 8 9 23 10 14 21 18 35 12 | 31 12 20 7 11 12 22 59 13 24 13 | 45 19 59 23 12 30 39 17 51 46 14 | 43 31 24 54 17 29 31 37 59 39 15 | 52 41 41 39 33 33 55 28 35 42 16 | 35 36 11 30 29 30 34 51 28 37 17 | 53 49 17 34 25 18 56 19 52 37 18 | 27 45 18 29 18 25 19 24 21 35 19 | 33 52 33 31 19 21 19 32 24 22 20 | 41 38 24 29 27 40 35 32 27 35 21 | 29 21 19 25 17 37 32 32 39 25 22 | 22 17 22 18 21 15 28 24 20 24 23 | 6 1 10 12 11 20 11 11 14 12 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2024 | April 2024 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 11 5 8 9 7 6 10 13 7 8 8 9 12 6 6 1 | 8 7 7 2 4 4 6 15 3 5 7 4 5 4 4 2 | 3 3 5 6 3 4 3 6 6 4 4 4 1 3 3 3 | 5 7 7 6 3 4 5 1 4 3 1 1 1 2 5 4 | 2 3 3 11 8 10 8 7 5 3 5 6 3 4 9 5 | 3 4 3 11 1 4 50 9 5 7 1 5 8 3 11 6 | 7 1 5 6 4 6 23 5 5 6 1 2 2 5 2 7 | 3 4 1 9 4 7 31 11 10 13 2 2 3 5 3 8 | 6 6 6 25 10 10 24 9 11 15 12 7 4 2 3 9 | 10 4 12 28 20 3 29 23 18 24 12 10 7 7 7 10 | 16 13 16 35 16 14 18 16 13 21 9 25 4 14 41 11 | 17 9 29 33 17 12 9 26 17 43 26 22 16 17 8 12 | 14 8 29 33 51 17 26 13 14 49 64 24 23 12 26 13 | 37 44 59 43 61 39 43 52 59 103 37 42 43 54 14 | 20 43 33 50 73 78 100 47 56 51 31 52 74 48 58 15 | 38 66 38 44 52 42 78 57 53 59 46 44 57 41 41 16 | 48 33 26 51 40 131 45 37 10 51 40 41 25 34 42 17 | 41 27 33 19 67 24 46 46 43 20 24 34 32 36 37 18 | 12 31 19 25 28 27 35 70 31 36 21 40 27 47 28 19 | 32 25 39 31 26 21 37 28 32 38 24 37 30 40 35 20 | 33 22 25 30 27 43 32 31 28 36 28 18 48 30 39 21 | 23 25 34 19 26 26 22 38 34 32 22 20 36 35 46 22 | 26 16 32 25 18 26 20 36 21 17 23 24 20 30 27 23 | 10 12 13 13 8 20 19 15 18 20 17 21 12 1 21 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2024 Salvador Aguirre --------------------------------------------------------------------------- Observer: GABB.IT Location: Treviglio, Italy (9 36' E, 45 32' N) Frequency: 143.050.000 MHz Pre-Amplifier: SAWbird+2m Receiver: Nongles-N3 RTL-SDR Antenna: Yagi 3 Elements Antenna Direction: elev 20 deg, azimuth 250 deg Computer: Lenovo ThinkCentre Core I5+Linux Tumbleweed Observing method: Echoes 0.51++ Data Browser v.0.1. Echoes FTP client v.0.1.x | April 2024 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 8 10 4 10 8 14 25 14 4 26 37 29 9 20 1 | 13 16 7 4 10 14 31 10 9 28 37 24 12 32 2 | 21 8 5 7 18 19 23 16 9 17 35 35 13 27 3 | 14 1 3 7 4 21 21 18 7 20 51 27 10 19 4 | 14 10 2 5 15 17 23 22 8 21 50 27 17 14 5 | 9 16 5 3 11 15 17 10 7 21 45 19 20 7 22 6 | 7 8 1 5 14 11 27 11 14 8 42 24 20 18 25 7 | 9 8 7 5 9 11 21 17 14 15 35 20 7 8 21 8 | 8 15 9 7 9 10 26 11 12 13 29 27 11 20 9 | 3 11 12 1 10 3 20 11 5 14 21 17 5 6 15 10 | 5 12 6 3 6 8 13 11 25 10 10 10 5 13 11 | 7 11 1 6 6 3 15 5 9 21 20 4 4 7 21 12 | 5 7 4 4 6 11 12 5 14 15 6 2 8 14 13 | 4 8 1 5 4 1 8 2 8 21 4 7 3 6 16 14 | 1 2 1 7 1 9 16 7 14 7 8 2 7 15 | 4 1 2 3 13 3 10 9 13 9 7 5 1 16 | 5 6 1 13 3 9 4 2 4 16 8 9 3 13 4 17 | 3 8 1 4 4 7 4 2 8 13 4 4 1 6 3 18 | 4 1 1 3 5 11 5 1 7 3 7 6 1 6 9 19 | 6 3 1 4 4 13 9 2 14 7 12 4 3 6 3 20 | 8 3 1 6 2 18 5 4 7 14 10 8 6 7 5 21 | 4 4 4 8 8 13 6 4 8 18 12 8 2 14 22 | 3 2 3 9 8 15 9 9 10 24 21 7 7 13 4 23 | 4 1 5 7 14 22 11 6 29 26 20 5 14 4 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2024 | April 2024 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 3 14 4 12 25 24 28 29 14 17 28 4 15 13 1 | 3 20 9 23 18 32 13 18 10 1 28 24 12 2 | 5 7 8 25 33 29 19 7 14 29 3 3 | 15 27 32 27 21 8 21 11 4 | 3 9 13 20 27 15 12 5 27 9 5 | 7 20 21 30 28 25 16 28 6 3 28 10 6 | 13 18 4 14 27 28 18 37 21 22 17 18 10 21 5 7 | 14 15 4 21 20 35 17 30 11 20 16 2 28 15 8 | 15 15 5 20 34 24 28 29 27 10 14 29 14 17 8 9 | 15 11 6 17 15 26 17 10 14 15 11 9 19 18 11 10 | 15 15 3 14 14 6 12 18 11 7 9 3 12 12 6 11 | 16 8 4 12 10 12 8 12 8 12 6 3 12 9 7 12 | 13 9 1 9 8 5 6 6 5 11 11 2 16 1 13 | 15 2 3 11 14 9 10 5 9 9 4 10 6 14 | 9 1 8 5 9 9 2 8 10 3 3 10 15 | 10 2 3 7 11 5 1 9 6 9 3 9 9 16 | 8 5 5 6 7 5 3 6 5 6 7 14 1 7 17 | 3 2 6 5 1 7 3 6 8 4 6 3 1 10 18 | 11 2 3 7 7 8 6 7 4 5 9 6 3 3 10 19 | 4 3 3 10 6 8 8 6 8 4 14 5 6 4 6 20 | 7 2 8 9 16 18 4 16 10 9 18 5 12 5 11 21 | 8 4 10 3 13 9 13 6 12 14 19 8 16 4 8 22 | 11 10 10 16 14 17 21 18 6 15 15 13 21 6 9 23 | 15 6 12 21 28 25 14 20 16 12 28 9 18 15 6 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2024 Giuseppe --------------------------------------------------------------------------- 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 2024 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 8 3 10 9 5 8 7 14 4 8 18 8 8 4 5 1 | 15 9 10 10 15 7 14 18 10 3 22 10 12 6 3 2 | 8 9 12 5 16 21 14 8 14 14 20 15 12 8 1 3 | 12 9 5 7 16 22 12 9 6 10 17 20 9 4 3 4 | 7 17 7 5 9 25 11 15 9 7 27 8 7 5 4 5 | 5 12 13 9 11 18 8 15 8 9 17 9 6 5 4 6 | 9 17 13 9 16 13 9 9 4 12 20 7 11 7 1 7 | 6 17 14 6 10 20 12 14 12 13 8 10 24 6 12 8 | 8 11 17 8 13 17 18 18 12 10 19 11 14 10 5 9 | 5 5 15 11 13 15 10 16 9 30 25 9 5 5 1 10 | 7 8 13 8 12 10 10 21 11 19 14 18 5 5 4 11 | 5 6 4 12 18 13 24 23 10 19 18 16 0 2 0 12 | 12 7 7 23 13 14 22 23 6 9 20 21 6 4 5 13 | 12 10 9 10 12 19 32 13 6 7 10 28 6 3 4 14 | 13 12 3 8 12 11 12 9 5 11 16 16 13 5 3 15 | 7 9 1 0 6 13 6 1 1 11 14 6 8 4 0 16 | 6 5 3 0 2 6 5 6 6 12 8 1 4 2 1 17 | 11 8 5 2 4 3 4 3 6 9 6 2 2 1 2 18 | 3 4 1 3 4 7 3 2 2 7 6 0 6 1 1 19 | 2 1 0 3 3 3 4 4 5 2 2 1 0 1 0 20 | 3 2 0 2 2 4 6 4 6 5 3 3 4 0 1 21 | 7 4 4 4 0 3 1 2 4 3 1 14 5 4 4 22 | 4 2 4 3 4 4 6 5 4 3 3 8 0 6 3 23 | 4 3 12 7 5 11 9 13 5 13 9 11 4 4 3 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2024 | April 2024 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 6 6 11 7 2 10 11 14 6 6 3 6 4 6 7 1 | 5 11 11 8 8 10 11 12 6 3 5 9 6 6 11 2 | 4 13 14 13 6 4 13 12 1 13 3 5 10 9 6 3 | 7 9 4 13 6 5 10 7 3 9 6 3 7 9 11 4 | 5 14 5 7 3 4 10 6 3 12 5 6 10 14 12 5 | 4 14 10 8 5 7 10 5 4 12 5 7 13 6 14 6 | 9 11 5 3 6 9 9 11 5 8 3 5 9 12 10 7 | 13 5 5 6 9 9 22 6 6 9 7 11 7 6 25 8 | 10 13 5 8 15 8 13 9 0 7 6 6 4 10 9 9 | 17 14 6 13 17 11 12 7 0 8 6 8 10 10 14 10 | 10 9 6 5 13 16 7 7 3 10 9 5 5 9 10 11 | 12 15 6 10 20 18 28 14 4 3 3 9 3 5 11 12 | 22 14 1 5 15 10 21 9 2 3 8 6 9 2 10 13 | 16 10 6 14 6 9 17 17 8 4 10 6 3 4 9 14 | 6 4 4 10 2 3 8 13 4 2 11 6 4 2 4 15 | 5 5 2 9 8 1 8 2 2 3 1 4 3 5 7 16 | 3 5 3 4 7 4 5 1 2 0 0 3 8 5 2 17 | 5 0 1 2 10 1 4 0 2 2 4 2 1 4 5 18 | 2 1 1 2 2 2 0 0 2 3 1 2 2 2 8 19 | 0 5 2 2 1 9 3 0 0 0 2 2 3 1 4 20 | 2 2 2 2 2 3 3 1 0 2 2 0 0 2 1 21 | 2 3 3 5 3 5 3 1 2 1 3 4 2 1 3 22 | 5 7 4 5 3 6 7 1 3 5 2 4 3 2 3 23 | 4 19 5 2 4 6 9 6 4 7 7 4 4 4 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2024 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 2024 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 11h| 22 34 26 43 - - - - - - 30 - 10 6 5 12 | 37 - - - - - - - - - 32 - 8 12 6 13 | 34 - - - - - - - - - 22 - - 6 - 14 | - - - - - - - - - - - - - 14 - ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2024 | April 2024 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 1h | - 36 22 - - 44 52 46 28 - - - - - - 12 | - 34 32 - - 34 - 56 - - - - - - - 13 | - - 42 - - 42 64 40 - - - - - - - 14 | - - - - - 92 80 - - - - - - - - 15 | - - - - - 124 - - - - - - - - - ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2024 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: 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 2024 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 6 8 12 5 12 6 8 10 7 8 7 9 3 8 9 1 | 7 10 9 4 5 9 4 11 5 5 10 11 7 8 7 2 | 13 13 7 10 6 8 5 9 10 10 6 11 7 4 9 3 | 6 8 6 7 12 5 2 10 3 11 10 7 6 9 9 4 | 10 10 7 10 8 4 4 4 6 8 6 3 9 7 7 5 | 9 5 10 5 9 5 3 7 9 7 3 5 8 3 7 6 | 2 7 2 8 7 9 4 4 9 10 8 6 6 9 9 7 | 8 6 4 6 3 3 5 6 5 7 6 10 3 7 5 8 | 3 6 6 9 10 2 5 2 3 9 9 3 3 2 8 9 | 5 3 5 2 3 4 4 5 1 0 4 3 0 3 5 10 | 2 3 0 0 1 4 4 3 3 1 3 2 0 5 0 11 | 1 1 0 2 1 1 5 2 1 2 8 0 0 1 3 12 | 5 1 3 1 2 0 1 1 2 1 2 2 0 0 0 13 | 1 2 2 2 1 1 2 1 1 1 2 0 0 0 1 14 | 2 2 1 1 2 0 0 1 1 0 4 1 0 0 6 15 | 3 1 0 1 1 4 3 3 2 1 1 0 2 1 4 16 | 2 3 2 2 2 1 2 0 0 0 1 1 0 1 4 17 | 4 1 3 2 2 0 1 1 2 4 0 2 0 2 4 18 | 5 3 2 4 5 0 2 1 4 2 2 4 1 2 1 19 | 8 1 3 3 1 3 2 4 3 3 6 5 3 3 4 20 | 4 8 4 8 3 4 3 5 4 1 2 1 2 2 4 21 | 6 6 8 2 4 9 8 7 5 4 5 4 7 7 11 22 | 4 3 8 7 7 4 6 5 5 6 10 9 6 3 9 23 | 6 5 6 9 9 6 13 5 8 10 11 4 10 4 7 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2024 | April 2024 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 16 2 13 10 11 4 8 19 8 6 6 7 3 1 | 9 8 7 3 5 6 5 4 6 2 6 7 7 2 | 11 12 8 7 7 11 7 6 4 16 7 8 3 3 | 12 7 9 3 9 7 12 10 9 11 4 13 12 4 | 10 8 10 2 8 5 5 3 5 11 10 9 14 5 | 7 10 13 6 12 5 6 11 3 6 13 11 8 6 | 7 9 4 9 5 8 4 13 6 9 9 12 12 7 | 9 11 8 7 2 7 5 6 7 4 6 7 9 8 | 6 0 6 6 9 7 6 4 8 7 4 8 7 9 | 4 3 2 2 6 2 4 7 5 5 4 3 1 10 | 3 1 3 1 2 6 1 0 3 2 3 5 4 11 | 1 3 1 2 3 5 1 2 1 2 5 2 2 12 | 1 0 4 1 1 2 1 2 3 1 4 3 0 13 | 0 2 2 1 2 1 3 1 1 2 0 0 14 | 2 2 2 4 0 0 2 3 2 1 0 15 | 0 1 2 2 2 0 1 1 2 1 5 2 16 | 2 1 1 2 0 0 1 3 0 6 0 0 0 17 | 3 3 0 1 2 1 3 1 3 6 1 1 1 18 | 1 3 2 0 3 2 3 1 2 3 2 0 4 19 | 4 3 4 0 5 2 5 4 4 2 4 4 1 20 | 6 6 2 7 9 3 1 6 6 9 4 6 3 21 | 3 2 8 2 6 8 7 1 4 11 8 3 2 22 | 9 11 9 12 7 9 7 4 9 5 8 6 3 23 | 6 8 9 11 5 7 9 12 17 8 9 3 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2024 Jochen Plessmann -------------------------------------------------------------------- Observer: Kees Habraken Location: Kattendijke, Netherlands (3 57' E, 51 32' N) Frequency: 143.05 MHz Graves Receiver: RTL-SDR v3 dongle Antenna: V-dipole Computer: Raspberry Pi4B Antenna Direction: elev 0 deg, azimuth 180 deg (S) Observing method: MeteorRadio + Colorgramme RMOB Lab v 3.0 | April 2024 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 6 2 6 2 3 5 5 4 3 1 3 2 6 5 0 1 | 3 2 8 9 7 3 6 2 4 6 4 4 4 1 3 2 | 4 2 12 7 8 7 7 2 4 6 4 4 2 3 2 3 | 4 2 5 7 6 3 10 3 3 5 5 6 0 2 3 4 | 2 6 4 6 8 4 3 6 6 3 7 5 3 2 5 5 | 5 7 8 7 4 3 1 2 7 2 3 6 5 2 2 6 | 2 1 8 7 9 2 1 4 4 5 7 4 6 6 1 7 | 3 2 2 10 12 6 3 3 6 4 5 5 6 5 12 8 | 3 4 7 11 10 3 3 4 4 5 4 4 2 5 6 9 | 7 7 3 11 5 5 4 4 7 2 4 14 3 3 6 10 | 4 3 3 2 3 5 3 1 5 0 5 0 0 2 3 11 | 1 3 3 3 6 1 1 0 2 0 0 0 0 1 3 12 | 0 6 3 5 6 0 1 1 6 0 2 0 0 1 4 13 | 1 1 2 6 0 0 0 0 4 0 2 0 0 0 3 14 | 0 3 0 1 2 0 0 1 3 0 0 0 0 2 0 15 | 0 1 0 2 0 0 0 0 5 1 0 0 0 2 2 16 | 0 0 1 0 0 0 0 0 1 2 0 0 0 0 1 17 | 0 1 2 0 0 0 0 0 3 0 0 0 0 1 4 18 | 0 15 2 2 3 0 4 2 2 0 0 0 2 2 7 19 | 1 1 1 1 0 1 0 0 1 1 2 0 2 1 3 20 | 1 1 2 4 2 3 2 3 4 5 2 3 1 1 3 21 | 1 2 6 1 5 1 1 6 4 2 1 1 1 2 2 22 | 1 1 3 3 2 2 3 4 0 2 1 0 4 2 4 23 | 1 6 4 5 1 1 4 7 4 5 2 2 3 1 4 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2024 | April 2024 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 6 2 5 4 7 5 11 4 2 4 4 5 3 3 2 1 | 4 4 6 8 8 10 9 8 2 5 8 6 1 8 2 2 | 5 11 6 8 2 8 7 6 7 7 7 7 3 3 7 3 | 4 7 4 6 9 3 7 7 9 7 4 2 6 5 2 4 | 2 4 5 3 5 11 12 1 9 3 4 9 2 5 3 5 | 6 3 5 5 8 21 15 3 2 9 7 10 8 8 5 6 | 5 1 1 8 8 6 13 7 6 7 8 3 2 11 5 7 | 9 6 1 7 10 4 3 7 7 11 7 10 3 7 6 8 | 8 5 7 9 9 7 8 6 9 6 6 3 2 5 5 9 | 8 8 5 6 3 8 3 2 4 4 5 6 4 1 3 10 | 4 4 10 5 1 3 7 3 4 7 5 1 5 5 1 11 | 5 4 0 3 4 6 2 1 1 5 1 4 9 0 3 12 | 4 4 4 4 6 5 4 2 4 1 5 1 2 1 0 13 | 7 3 1 2 5 0 4 2 4 0 5 0 1 0 0 14 | 7 4 6 5 5 3 1 1 5 8 5 1 2 0 0 15 | 2 2 2 0 1 2 2 3 5 4 5 2 3 2 0 16 | 1 0 1 0 2 3 2 0 2 1 1 2 1 0 0 17 | 1 2 0 2 4 2 1 2 2 2 0 3 0 0 0 18 | 1 2 2 4 3 2 2 6 2 1 3 1 2 1 2 19 | 1 2 2 2 1 2 0 3 0 1 4 1 1 4 4 20 | 1 3 3 4 1 1 1 3 4 5 5 2 5 3 2 21 | 4 1 4 2 1 0 1 1 1 3 5 1 3 2 1 22 | 2 1 3 3 3 1 2 1 6 3 4 1 2 2 1 23 | 3 2 3 3 2 6 3 4 3 3 7 3 2 4 0 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2024 Kees -------------------------------------------------------------------- Observer: Stanley 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 | April 2024 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 6 6 6 1 14 9 11 5 9 5 8 4 1 2 3 1 | 4 6 6 4 3 10 4 9 10 7 4 2 3 2 2 2 | 7 11 5 7 3 2 14 5 6 6 1 3 1 6 3 3 | 5 6 6 3 6 1 2 4 8 12 10 4 3 1 3 4 | 11 9 7 8 10 12 8 8 14 16 11 8 5 2 2 5 | 21 14 17 9 7 9 14 3 19 24 23 12 4 4 7 6 | 12 13 12 17 9 15 16 11 21 23 19 14 7 12 9 7 | 17 20 16 19 19 16 12 16 17 17 20 15 11 10 15 8 | 27 24 12 11 25 25 19 19 39 28 29 12 5 8 7 9 | 23 20 17 25 29 28 17 20 34 29 28 19 19 8 8 10 | 12 32 21 32 33 30 27 26 41 35 32 17 12 14 10 11 | 28 26 22 27 32 26 25 39 47 32 39 17 14 4 14 12 | 21 26 17 30 31 23 16 30 34 30 34 21 22 6 13 13 | 53 39 38 42 47 40 33 37 33 45 55 24 14 18 19 14 | 46 53 50 48 53 35 42 40 39 50 56 30 30 16 24 15 | 42 54 42 45 47 45 25 47 42 46 50 34 28 23 26 16 | 47 52 47 34 32 39 57 33 41 28 29 28 24 28 27 17 | 44 55 46 28 36 2 43 27 60 32 32 25 10 16 23 18 | 32 44 32 30 29 7 36 29 29 33 28 18 14 24 23 19 | 38 40 31 24 28 32 52 27 26 53 44 8 11 22 15 20 | 34 30 38 24 31 27 33 25 24 42 25 9 17 18 16 21 | 30 30 28 16 30 35 18 30 31 40 11 11 27 15 9 22 | 15 22 18 12 21 13 17 23 20 15 11 8 11 8 11 23 | 13 19 5 8 7 15 11 9 8 10 4 2 8 7 5 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2024 | April 2024 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 2 3 8 6 5 3 9 13 6 7 7 5 3 4 1 1 | 5 5 4 3 2 29 3 4 6 6 8 4 5 6 4 2 | 3 3 7 5 2 4 3 8 8 7 6 3 6 2 4 3 | 3 2 3 7 2 3 4 6 8 6 3 5 5 7 4 4 | 3 4 4 3 3 9 17 10 13 12 4 7 6 7 6 5 | 5 5 10 9 3 5 22 10 15 11 13 11 6 12 7 6 | 2 15 8 9 7 15 17 9 11 24 15 11 11 10 14 7 | 20 10 17 11 14 15 24 17 13 24 14 20 19 17 22 8 | 18 16 18 7 15 27 51 21 16 33 23 11 16 21 18 9 | 19 19 12 14 19 24 30 23 25 28 34 16 29 30 19 10 | 27 15 12 9 20 31 29 24 24 36 18 35 19 22 27 11 | 20 24 15 13 18 37 31 24 23 34 28 30 22 30 29 12 | 29 14 20 9 23 29 38 27 29 37 23 38 31 45 31 13 | 20 30 12 15 20 40 55 46 41 36 34 43 64 53 43 14 | 11 21 15 21 39 46 50 43 53 44 33 49 56 55 55 15 | 34 15 33 28 37 53 51 48 36 42 49 57 60 62 45 16 | 29 1 13 23 26 40 60 31 49 45 34 31 45 30 41 17 | 15 1 21 28 42 38 40 18 30 34 36 48 50 38 43 18 | 13 15 40 25 34 25 34 34 29 30 47 27 42 45 29 19 | 25 9 13 31 23 34 34 33 41 41 25 41 32 32 20 | 23 3 14 29 26 30 36 25 29 17 42 37 34 25 54 21 | 13 16 19 20 30 34 33 25 30 31 31 29 32 40 22 | 10 20 15 18 19 17 24 18 14 24 23 19 21 22 25 23 | 12 32 7 16 3 7 19 10 5 7 13 7 8 10 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2024 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 | April 2024 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 21 47 24 21 47 60 41 58 29 33 65 27 1 | 40 119 29 58 69 51 46 34 26 26 42 2 | 47 82 33 52 72 45 53 19 65 40 49 18 34 3 | 71 89 48 52 61 54 51 76 67 50 48 37 52 4 | 52 60 55 46 68 67 66 81 85 69 46 72 46 5 | 67 54 55 65 80 95 60 83 109 66 76 76 60 6 | 69 82 51 67 64 89 91 104 92 79 75 77 75 7 | 96 85 38 7 74 95 79 117 112 95 100 84 119 90 8 | 90 88 77 14 70 46 115 119 102 136 89 110 96 106 9 |103 86 84 27 79 116 136 128 168 94 116 99 135 10 |101 93 114 34 91 96 146 120 103 104 147 117 114 11 |109 119 68 117 73 113 116 124 146 118 120 95 137 113 139 12 |112 133 171 131 99 116 139 135 127 129 138 112 153 128 135 13 |101 137 181 118 132 130 131 148 188 166 188 141 147 131 147 14 |121 112 163 143 138 123 144 110 131 74 146 109 138 15 | 91 114 132 90 111 115 114 126 191 73 116 94 116 16 | 87 80 151 94 83 170 97 92 112 79 101 75 79 17 | 80 69 84 53 87 55 105 75 74 112 67 11 49 68 18 | 40 44 88 49 75 38 73 81 57 51 34 57 19 | 44 71 33 41 48 50 37 45 50 26 53 54 20 | 67 38 28 30 66 44 41 42 36 26 38 40 21 | 29 30 27 33 28 33 46 36 27 31 23 40 22 | 53 30 43 24 35 49 33 31 57 29 30 33 23 | 22 35 33 50 55 79 70 35 43 33 32 43 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2024 | April 2024 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 43 23 54 52 35 33 35 57 56 31 39 31 83 30 65 1 | 58 42 31 24 32 59 35 55 62 37 60 25 73 25 21 2 | 61 51 30 44 36 56 45 75 39 53 79 56 36 27 3 | 70 41 43 46 50 50 41 63 82 35 53 82 39 33 4 | 76 59 45 76 88 84 72 63 87 83 86 70 47 53 5 | 64 71 78 86 58 79 96 93 100 79 95 68 79 57 6 | 85 75 58 90 86 115 121 96 107 86 117 90 86 91 7 | 91 72 70 103 81 109 152 103 122 85 104 95 90 99 8 |118 99 95 125 120 131 154 118 122 81 144 123 115 9 |104 109 111 120 93 116 151 117 129 99 126 84 97 10 |128 22 92 138 105 150 143 111 129 84 135 142 163 11 |123 97 126 139 91 137 164 146 139 114 173 144 128 99 178 12 |155 122 136 152 160 180 147 133 168 162 229 205 201 170 162 13 |158 109 139 137 168 211 186 149 155 188 230 189 197 181 233 14 |165 128 126 112 139 134 151 145 129 114 160 146 178 132 150 15 |129 49 103 108 126 137 99 145 125 110 136 105 134 89 145 16 | 73 81 69 97 89 96 86 77 89 77 116 82 103 100 85 17 | 71 51 72 47 69 84 64 73 77 89 58 88 73 73 65 18 | 33 47 58 42 51 63 48 51 42 83 48 44 54 44 36 19 | 57 32 47 45 72 37 43 33 38 48 47 46 64 44 81 20 | 31 33 50 54 31 39 59 69 51 37 50 54 50 57 66 21 | 29 33 28 35 52 30 22 78 68 71 33 41 37 50 35 22 | 26 40 26 21 67 46 41 30 53 67 21 146 49 42 36 23 | 36 26 37 65 47 57 44 49 56 75 38 128 47 37 55 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2024 Mike Otte -------------------------------------------------------------------- Observer: Ivan Sergey Location: private astronomical observatory close to Molodechno, Belarus (54 16' N, 26 44 E) Frequency: 88.58 MHz Transmitter Location: FM-radio station in Spain, France 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 until Jan 11 TECSUN PL-310ET since Jan 12 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 2024 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 14 14 29 15 16 33 8 15 5 4 11 5 12 16 16 1 | 10 13 29 10 20 27 3 7 2 10 6 4 8 9 16 2 | 12 15 31 18 19 31 6 8 2 9 4 6 9 6 18 3 | 12 11 31 10 18 26 2 7 5 9 7 17 10 10 24 4 | 7 9 27 29 25 18 8 11 5 17 10 8 16 9 11 5 | 9 6 33 10 36 9 7 13 3 22 13 8 13 8 7 6 | 9 7 2 5 15 5 5 4 3 16 4 8 11 18 17 7 | 12 4 12 6 17 9 7 7 3 7 2 3 9 8 8 8 | 12 10 20 7 17 6 5 7 8 14 7 3 6 16 18 9 | 9 4 25 9 7 7 8 2 4 10 4 2 7 17 6 10 | 9 4 13 9 8 13 4 6 3 12 3 8 3 16 5 11 | 13 2 12 10 14 7 5 1 10 4 4 3 12 3 12 | 14 5 12 8 4 7 4 2 3 6 3 10 5 13 3 13 | 9 4 8 10 4 6 3 2 7 2 3 10 5 12 9 14 | 8 5 6 8 2 4 2 1 15 9 4 11 5 7 5 15 | 9 23 1 3 2 2 1 1 1 4 2 5 7 5 20 16 | 6 27 6 7 2 4 5 5 4 2 6 2 3 4 17 | 2 34 6 5 1 2 5 2 6 9 4 6 2 2 4 18 | 2 21 6 8 5 3 7 1 6 3 2 10 2 2 4 19 | 5 11 5 14 12 8 6 4 7 2 2 8 9 6 5 20 | 18 26 10 20 28 1 5 2 6 3 10 11 15 10 21 | 19 17 14 13 22 2 14 10 17 5 6 12 11 17 9 22 | 18 22 14 30 30 4 14 3 12 13 22 12 17 9 23 | 17 22 13 32 30 4 12 7 4 13 3 12 11 16 14 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2024 | April 2024 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 5 4 4 4 8 16 37 14 25 15 12 9 11 5 8 1 | 11 12 9 3 6 18 26 14 16 15 24 5 7 9 11 2 | 7 6 9 7 8 8 23 10 16 27 32 13 6 3 7 3 | 12 9 16 15 13 13 30 11 26 28 30 9 15 9 18 4 | 14 7 10 18 14 17 44 19 21 29 31 14 16 9 24 5 | 17 14 3 15 12 9 44 18 30 17 14 15 15 20 28 6 | 6 6 2 7 12 13 33 16 23 11 15 15 13 20 18 7 | 6 9 13 9 6 13 25 14 31 23 12 12 13 11 17 8 | 8 6 5 3 8 16 33 15 27 12 12 9 6 30 16 9 | 2 5 2 8 9 10 20 21 21 28 13 18 7 13 14 10 | 4 7 12 1 6 15 22 11 22 15 19 6 5 18 13 11 | 4 17 6 3 8 11 14 10 25 9 16 9 5 8 4 12 | 5 7 3 2 9 13 14 14 11 9 6 4 3 7 4 13 | 1 11 5 2 4 25 10 11 14 16 6 6 4 23 8 14 | 4 15 8 1 6 21 9 4 13 10 8 2 1 4 5 15 | 3 13 33 4 4 8 13 8 8 8 6 6 2 5 6 16 | 4 7 16 2 7 14 10 5 9 6 6 3 5 3 17 | 10 3 10 4 5 11 10 6 9 7 5 2 1 4 5 18 | 2 10 1 1 2 8 20 6 8 12 1 3 2 6 4 19 | 4 4 6 1 4 12 11 12 11 3 5 5 2 8 2 20 | 6 8 6 6 5 30 16 14 13 5 4 5 4 5 6 21 | 6 8 5 6 11 30 15 10 15 4 7 5 2 7 5 22 | 6 7 9 10 23 36 23 16 19 17 9 9 2 9 5 23 | 7 11 7 17 15 26 23 18 8 18 7 6 8 7 11 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2024 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 Pro A300, Win XP Observing method: manual count of Speclab recordings | April 2024 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 12 17 9 8 9 6 5 9 4 10 11 7 8 8 6 1 | 8 9 7 7 11 11 8 8 10 6 9 12 6 11 8 2 | 12 15 11 7 9 16 9 6 8 11 7 6 4 9 6 3 | 8 12 6 7 9 14 7 9 7 10 11 10 7 11 8 4 | 14 13 12 12 10 8 12 8 7 6 6 6 11 9 8 5 | 8 8 5 10 4 15 4 11 8 13 8 5 5 9 7 6 | 3 10 8 7 8 5 7 3 9 15 9 6 6 9 7 7 | 11 7 10 6 5 6 4 12 3 4 6 11 4 8 4 8 | 5 13 9 8 3 12 7 10 5 6 7 4 7 10 4 9 | 1 4 7 1 5 7 6 8 9 4 3 5 4 6 4 10 | 5 4 6 9 4 2 5 6 5 6 4 7 4 6 5 11 | 4 5 11 10 3 7 5 2 7 4 7 2 7 10 4 12 | 9 7 2 7 4 10 13 6 5 5 6 4 2 0 3 13 | 2 7 6 3 1 2 9 9 8 3 5 7 4 3 3 14 | 7 5 2 4 7 3 2 7 2 4 4 6 4 3 5 15 | 7 2 2 5 2 4 5 10 7 4 2 5 5 4 5 16 | 2 4 1 3 7 1 3 3 7 3 2 5 3 2 3 17 | 10 2 2 1 4 6 1 5 1 7 4 2 2 3 5 18 | 4 4 2 4 3 2 5 4 6 4 5 2 3 2 4 19 | 8 6 1 4 2 5 3 3 1 6 9 6 6 1 5 20 | 6 9 3 4 5 8 8 5 7 4 5 5 6 2 5 21 | 9 9 13 10 6 9 8 4 7 6 10 5 5 7 6 22 | 8 8 15 4 7 6 6 4 10 12 11 8 5 6 9 23 | 10 10 5 4 6 6 14 5 6 9 9 9 11 7 6 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2024 | April 2024 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 8 6 7 7 8 10 8 10 13 7 5 3 9 17 11 1 | 5 9 6 5 7 10 12 12 9 10 12 6 11 11 7 2 | 11 5 9 6 13 13 16 12 9 7 12 7 7 13 12 3 | 7 3 12 11 5 3 10 10 11 13 7 17 12 7 9 4 | 10 3 12 8 14 7 8 8 10 9 10 7 15 10 15 5 | 9 8 13 4 10 12 8 13 9 12 4 9 9 10 8 6 | 9 7 10 9 9 11 14 10 9 10 8 9 9 12 7 7 | 12 4 4 5 8 4 9 11 5 8 13 12 8 8 10 8 | 9 4 7 2 7 5 5 10 3 4 9 8 19 2 14 9 | 4 5 4 3 5 5 3 4 3 4 7 4 5 3 4 10 | 4 3 5 3 7 3 3 2 6 2 1 2 5 5 11 | 2 5 7 6 7 5 5 9 5 4 2 4 3 1 3 12 | 8 7 7 8 7 5 2 9 11 7 5 4 4 10 5 13 | 3 9 2 4 1 7 4 0 4 8 7 7 6 4 5 14 | 4 4 3 3 3 9 11 6 13 4 3 10 8 11 3 15 | 1 7 4 5 8 4 6 9 3 3 8 7 5 1 4 16 | 3 4 1 1 6 4 1 7 2 6 2 5 1 6 1 17 | 4 6 2 7 5 6 4 2 0 4 5 8 5 3 5 18 | 1 2 2 6 5 6 5 6 4 1 5 4 5 2 6 19 | 4 4 5 6 2 3 6 3 3 4 6 4 7 8 2 20 | 5 5 4 2 6 5 9 6 4 4 4 4 2 9 7 21 | 5 5 3 6 9 5 9 6 5 3 5 10 9 3 5 22 | 5 3 6 8 8 6 13 16 7 5 9 4 8 13 5 23 | 8 7 10 7 8 7 11 8 12 12 13 14 8 6 9 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2024 Notes: . installed solar panels on May 9, 2018. View of the antenna partially blocked, and increased interference of the convertor. Chris Steyaert -------------------------------------------------------------------- Observer: Istvan Tepliczky Location: Tata, Hungary (18 20' E, 47 39' N) Frequency: 143.05 MHz Antenna: Moxon, azimuth SW, elevation 0 deg. Receiver: SDRplay RSP1A Computer: HP Notebook T400 Observing method: Spectrum Lab script + RMOB Lab v2.9 Number of meteors in one hour intervals | April 2024 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 35 31 35 35 28 23 31 26 38 33 37 24 37 36 1 | 23 37 33 41 31 30 34 29 41 23 24 28 25 29 2 | 20 37 32 23 33 25 37 27 45 22 31 22 36 30 3 | 36 22 42 21 26 26 39 30 33 21 22 26 25 21 24 4 | 37 12 15 21 20 25 19 31 20 15 18 21 22 27 30 5 | 30 17 35 24 24 27 23 23 16 23 31 27 26 19 21 6 | 34 22 27 25 27 26 27 30 16 11 26 20 18 26 34 7 | 28 33 26 21 41 27 29 31 22 29 26 41 16 18 35 8 | 37 35 34 25 44 28 20 30 21 28 32 21 24 27 28 9 | 32 37 31 28 41 34 29 16 21 36 23 20 30 30 33 10 | 30 33 20 31 37 21 44 20 31 37 33 24 17 31 11 | 23 32 30 41 32 29 35 30 56 29 35 24 36 26 12 | 30 31 24 30 26 20 34 18 32 26 13 20 28 26 22 13 | 26 17 23 19 21 20 21 18 18 22 20 24 13 15 18 14 | 42 12 13 17 16 12 23 18 8 17 12 19 13 14 18 15 | 24 12 14 15 6 8 16 10 18 21 16 12 9 13 13 16 | 13 18 10 16 11 15 14 11 14 11 8 9 15 12 8 17 | 5 12 17 28 11 13 19 12 18 12 15 17 17 11 10 18 | 13 6 11 15 13 17 8 13 17 20 12 19 11 19 8 19 | 17 37 22 17 13 18 13 18 10 12 20 25 19 22 14 20 | 31 32 26 23 16 22 19 26 9 20 19 25 21 11 16 21 | 25 38 22 25 20 29 24 26 14 26 32 14 19 25 29 22 | 24 25 29 13 31 33 37 30 32 29 23 12 33 31 36 23 | 33 32 35 22 38 33 26 33 39 33 28 11 34 33 33 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2024 | April 2024 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 27 30 20 26 23 31 39 39 43 18 29 37 25 1 | 27 23 26 38 39 40 47 29 32 28 32 18 20 2 | 13 15 38 26 37 36 47 33 24 38 28 28 35 3 | 17 23 24 19 46 23 41 32 31 38 31 27 27 4 | 24 25 31 20 26 23 35 22 22 23 25 16 10 27 23 5 | 14 27 27 27 29 23 42 33 31 30 37 25 32 26 6 | 17 13 21 25 36 35 36 36 23 38 31 30 33 30 7 | 28 30 25 20 32 18 55 29 24 25 33 34 27 24 8 | 33 27 18 31 23 24 38 30 22 26 31 37 32 13 22 9 | 23 19 17 30 31 28 37 32 33 37 23 33 35 26 32 10 | 20 25 34 30 19 44 29 38 22 29 31 32 38 32 11 | 26 17 21 33 24 43 39 30 31 26 35 24 9 8 12 | 19 16 15 23 22 38 39 32 24 25 23 22 16 14 13 | 17 24 22 15 24 32 22 14 19 20 20 17 9 22 15 14 | 11 7 17 17 21 21 13 26 15 14 3 23 15 17 11 15 | 10 10 16 12 18 15 13 9 12 21 10 13 15 22 11 16 | 14 9 16 14 16 7 17 16 15 14 11 14 15 13 15 17 | 21 8 20 14 22 16 18 19 10 17 5 17 18 14 13 18 | 18 12 27 23 22 19 17 14 9 13 4 16 15 19 13 19 | 17 15 21 26 15 14 24 21 15 13 26 18 13 12 9 20 | 6 17 31 22 14 21 17 16 18 20 19 17 15 20 23 21 | 17 26 21 34 10 29 32 32 20 21 10 8 18 18 22 | 33 25 37 14 19 34 37 31 17 32 5 16 27 23 | 25 31 23 11 21 47 32 28 24 42 8 29 29 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2024 Istvan Tepliczky -------------------------------------------------------------------- Observer: Pierre Terrier Location: Saint-Hippolyte, France (2 33' E, 44 42' N) Frequency: 143.05 MHz Antenna: Colinear 9dbi 144 MHz, omni Receiver: Icom PCR 1500 SSB USB Computer: BMAX B1 Windows 10 Observing method: HROFFT + Colorgramme RMOB Lab v 5.5 Number of meteors in one hour intervals | April 2024 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 4 5 9 15 5 3 0 3 1 | 11 7 13 15 5 7 9 8 2 | 7 11 19 11 7 6 2 7 3 | 10 15 9 9 4 3 6 7 4 | 19 8 12 18 7 3 3 6 5 | 13 8 19 19 6 3 6 6 6 | 13 15 19 23 7 5 4 2 7 | 11 21 22 20 8 6 3 4 8 | 13 15 23 14 5 8 9 7 9 | 16 17 20 6 4 2 10 6 10 | 9 9 15 6 5 7 6 9 11 | 16 14 10 7 9 1 5 6 12 | 10 12 13 3 6 9 13 5 13 | 8 17 9 5 2 7 6 7 14 | 12 12 8 1 3 6 2 6 15 | 2 9 8 4 2 3 2 2 16 | 0 1 6 1 2 4 1 3 5 17 | 2 2 3 4 4 2 5 2 0 18 | 1 4 2 4 5 1 3 2 1 19 | 2 5 4 5 2 4 1 5 3 20 | 1 8 6 6 3 1 1 5 2 21 | 4 2 8 4 5 3 1 2 1 22 | 3 7 1 15 2 1 1 2 1 23 | 6 7 6 10 3 4 3 1 3 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2024 Frequency: 143.05 MHz Antenna: Colinear 9dbi 144 MHz, omni Receiver: Icom PCR 1500 SSB USB Computer: PC dev Observing method: RadioMeteorDetector (RMD) + Colorgramme RMOB Lab v 5.5 Number of meteors in one hour intervals | April 2024 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 7 1 2 5 3 4 1 5 1 | 6 3 7 4 5 4 4 5 2 | 5 4 1 7 4 4 5 2 3 | 2 7 7 9 0 5 4 5 4 | 1 4 3 0 9 6 6 7 5 | 3 3 3 6 8 2 2 3 6 | 4 3 7 5 2 7 7 7 7 | 7 5 2 4 9 8 2 7 8 | 7 9 7 10 7 4 5 5 9 9 | 9 7 4 7 5 12 12 6 10 10 | 6 1 6 5 5 3 7 8 4 11 | 5 5 3 3 2 3 4 7 3 12 | 3 7 7 12 4 9 10 6 15 13 | 8 3 10 8 8 6 2 5 8 14 | 3 4 9 5 4 6 4 6 12 15 | 3 2 6 6 1 6 3 3 11 16 | 2 2 2 4 5 4 2 5 10 17 | 1 3 3 4 0 3 3 1 4 18 | 4 1 4 5 2 1 0 3 2 19 | 2 5 0 5 0 2 2 4 2 20 | 3 1 4 5 3 1 1 1 4 21 | 7 3 1 4 0 5 1 3 5 22 | 2 2 3 3 1 2 10 4 7 23 | 0 3 0 0 5 1 5 4 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2024 Pierre Terrier -------------------------------------------------------------------- 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 2024 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 1 2 3 0 2 0 0 1 2 1 2 6 3 3 3 1 | 1 0 3 0 2 1 1 0 1 1 2 3 2 1 2 2 | 1 1 3 3 0 0 3 3 2 6 1 2 3 1 0 3 | 2 2 0 3 3 0 1 4 3 1 4 1 3 0 1 4 | 1 7 1 3 1 1 0 0 2 3 1 1 2 2 3 5 | 4 0 1 6 4 0 0 1 0 1 0 0 2 1 0 6 | 1 2 0 0 3 0 2 0 0 3 5 1 0 1 3 7 | 5 3 1 1 2 1 2 2 3 2 3 2 1 3 1 8 | 3 2 2 5 0 0 0 1 0 2 3 1 2 1 2 9 | 3 1 1 0 1 3 1 1 6 3 1 2 2 0 3 10 | 2 2 0 0 0 2 2 1 4 1 0 3 0 2 1 11 | 0 1 0 3 1 2 1 2 2 3 1 0 1 2 2 12 | 0 3 2 2 1 0 0 1 1 1 3 0 1 0 1 13 | 1 0 0 1 1 0 1 0 0 1 0 1 0 0 2 14 | 0 0 0 1 1 0 2 0 0 0 2 1 0 0 4 15 | 0 1 0 0 0 1 0 1 0 1 0 0 1 0 2 16 | 0 0 0 1 0 0 0 1 1 0 0 0 0 0 1 17 | 0 0 1 1 0 0 0 0 0 0 0 0 0 0 1 18 | 1 0 1 0 0 0 1 0 0 0 1 1 1 1 0 19 | 0 0 0 0 0 2 1 0 0 2 0 0 0 0 0 20 | 1 1 1 0 0 1 0 0 1 1 1 0 0 0 0 21 | 0 0 2 0 0 2 2 0 0 0 3 3 1 1 0 22 | 0 0 2 0 1 0 0 2 0 0 2 1 0 0 2 23 | 0 1 0 0 2 1 0 0 2 2 0 0 0 1 1 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2024 | April 2024 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 2 0 1 1 2 1 5 4 1 0 1 2 2 1 1 1 | 3 1 3 1 3 1 4 5 1 1 2 0 1 3 1 2 | 3 0 1 0 5 3 8 4 1 1 0 5 3 1 1 3 | 2 3 3 1 6 2 6 1 3 4 3 2 2 1 1 4 | 2 3 7 1 5 1 12 5 4 4 2 5 1 7 5 5 | 0 5 6 0 2 0 10 4 5 4 2 2 3 4 4 6 | 2 6 4 2 1 5 10 5 5 7 4 2 5 3 4 7 | 2 5 0 2 1 5 12 4 0 2 4 3 1 5 3 8 | 1 2 4 1 3 3 8 1 4 4 5 4 4 2 4 9 | 2 4 4 2 1 1 6 3 2 2 3 3 1 0 1 10 | 2 3 1 3 2 1 4 2 2 2 1 3 0 6 8 11 | 2 1 3 1 2 0 1 2 0 2 1 2 2 0 2 12 | 1 3 1 4 5 1 1 2 0 0 0 1 0 2 3 13 | 3 0 2 0 0 0 0 3 1 0 2 1 2 0 2 14 | 0 0 0 0 0 2 1 1 2 0 0 0 4 1 4 15 | 0 0 1 0 0 2 0 0 1 1 0 2 0 0 2 16 | 0 0 0 0 1 0 0 2 0 1 1 0 0 1 0 17 | 0 0 0 1 0 1 2 1 0 0 1 3 0 0 2 18 | 0 1 1 1 2 2 0 0 0 0 0 0 0 0 0 19 | 1 1 1 1 0 0 0 0 0 0 1 0 1 0 0 20 | 1 0 0 0 1 0 2 0 0 0 0 2 0 0 0 21 | 1 1 1 1 1 2 0 1 0 0 2 2 0 0 1 22 | 0 0 1 0 1 4 4 4 0 0 1 2 0 1 0 23 | 3 4 1 0 2 4 1 2 3 2 2 1 1 1 4 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2024 Duration >= 10 seconds | April 2024 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 1 0 0 0 0 0 0 1 1 0 0 0 0 1 2 1 | 0 0 0 0 0 0 0 0 1 0 1 0 0 1 0 2 | 0 1 1 0 0 0 1 1 0 0 0 0 0 0 0 3 | 0 0 0 0 1 0 0 1 1 0 0 0 2 0 0 4 | 0 0 1 0 0 0 0 0 0 0 1 0 0 1 1 5 | 2 0 1 1 2 0 0 0 0 0 0 0 0 1 0 6 | 0 0 0 0 2 0 1 0 0 1 3 0 0 1 0 7 | 2 0 0 0 1 1 0 0 1 0 0 1 0 1 1 8 | 1 1 0 0 0 0 0 0 0 0 1 1 1 0 0 9 | 1 0 0 0 1 1 0 0 3 1 0 0 0 0 1 10 | 0 0 0 0 0 0 0 0 1 0 0 1 0 1 0 11 | 0 0 0 0 0 1 0 1 0 1 0 0 0 0 0 12 | 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 13 | 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 14 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 15 | 0 0 0 0 0 0 0 1 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 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 0 0 0 0 0 0 0 0 0 0 0 0 22 | 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 23 | 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2024 | April 2024 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 | 2 0 0 0 0 0 1 1 0 0 0 0 0 0 0 2 | 1 0 0 0 0 0 7 1 0 0 0 0 0 1 0 3 | 0 0 0 0 0 0 1 0 1 0 0 1 0 0 0 4 | 0 0 1 1 1 0 6 1 1 2 0 1 0 2 0 5 | 0 0 3 0 1 0 5 1 0 2 1 0 0 2 1 6 | 0 2 2 0 0 4 4 3 3 4 0 2 2 0 2 7 | 1 1 0 0 0 1 5 2 0 0 3 1 0 0 2 8 | 0 0 2 1 0 1 4 0 0 0 1 0 0 0 1 9 | 0 0 0 0 0 0 2 0 1 0 0 1 0 0 0 10 | 0 0 0 0 0 0 2 0 0 0 1 0 0 0 0 11 | 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 12 | 0 0 1 2 2 0 0 0 0 0 0 0 0 0 2 13 | 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 14 | 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 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 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 0 19 | 0 0 0 0 0 0 0 0 0 0 1 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 1 0 0 0 1 0 0 0 22 | 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 23 | 1 0 1 0 1 3 0 0 0 1 0 0 0 0 0 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2024 Notes: . increased noise since June 12, 2019, normally not affecting the long duration counts. . it is striking that little or nothing of the Lyrids can be seen in the numbers counts underdense, while the overdense show a clear maximum. 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 Michael Boschat http://www.chebucto.ns.ca/~aa063 Franky Dubois http://www.digilife.be/club/franky.dubois/meteor.html Hiroshi Ogawa Radio Meteor Obs. http://www.amro-net.jp/radio.htm 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/ 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 The VVS meteor beacon at AstroLAB https://www.vvs.be/werkgroepen/werkgroep-radioastronomie/the-vvs-meteor-beacon-at-astrolab -- Christian Steyaert (RMOB2404) 5 May 2024 --