Radio Meteor Observation Bulletin No. 357 www.rmob.org April 2023 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 2023 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h|129 131 137 123 148 126 149 131 128 137 128 95 146 126 131 1 |140 141 145 137 153 150 158 152 151 153 130 122 157 139 128 2 |133 147 169 144 138 140 141 150 134 135 151 112 147 120 149 3 |120 121 132 135 148 127 163 157 143 123 136 136 139 115 148 4 |121 123 139 135 116 116 136 143 130 121 126 127 129 129 139 5 |122 125 122 122 124 119 121 131 128 130 123 126 111 117 123 6 |107 114 108 117 111 124 112 125 127 120 114 131 128 113 113 7 |126 112 105 116 113 130 135 110 135 138 112 139 135 102 142 8 |113 130 118 124 118 130 149 109 127 138 100 129 120 125 116 9 |113 120 107 132 133 113 118 116 126 163 126 115 130 130 121 10 |105 110 99 111 126 127 119 118 122 112 128 134 125 123 112 11 |114 119 114 97 129 103 107 102 113 121 98 96 125 110 111 12 | 99 94 104 96 106 92 104 94 130 96 92 93 100 115 97 13 | 95 25 80 97 101 94 98 71 106 84 75 77 87 80 90 14 | 75 75 82 77 77 83 81 73 71 77 81 71 41 70 78 15 | 75 72 65 74 63 55 51 80 69 77 48 61 56 64 68 16 | 62 50 60 62 56 72 63 48 47 55 49 47 44 49 52 17 | 33 47 48 40 32 31 42 53 37 40 28 36 37 35 49 18 | 45 46 33 54 38 37 47 33 47 30 49 37 32 51 53 19 | 40 50 30 54 49 49 57 12 59 23 44 25 43 39 26 20 | 66 56 32 53 63 46 58 18 60 34 38 57 38 62 56 21 | 84 72 38 65 71 80 83 44 81 38 35 68 45 83 95 22 |110 102 58 89 93 93 78 78 101 56 58 87 47 92 101 23 | 97 104 90 100 102 124 118 118 117 60 81 111 85 117 107 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2023 | April 2023 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h|118 150 116 150 122 160 177 177 145 158 162 84 161 1 |147 155 131 150 110 149 182 155 151 171 173 120 175 2 |124 155 144 140 134 149 172 165 152 167 155 166 143 3 |121 138 134 130 123 152 158 155 154 176 156 149 160 4 |122 109 144 117 121 149 162 136 134 167 152 129 157 5 |145 135 136 135 109 159 153 152 207 156 161 156 6 |114 115 124 118 83 175 183 194 189 190 154 141 7 |123 140 136 124 148 165 161 159 154 165 145 8 |139 119 125 155 150 149 154 152 169 149 152 22 9 |125 121 123 145 161 153 168 162 162 161 162 122 10 |135 112 115 158 147 140 137 131 161 147 164 143 11 |113 110 118 149 145 167 142 138 139 136 128 129 12 |120 117 106 128 108 127 156 122 126 126 120 130 121 13 | 38 93 81 115 104 116 111 101 101 141 123 104 109 14 | 73 65 88 78 100 92 78 94 119 97 96 97 84 15 | 60 72 99 73 70 86 70 73 76 63 71 68 80 16 | 38 36 59 51 47 69 66 54 55 67 63 71 57 17 | 46 48 56 44 48 59 69 51 58 51 58 53 53 18 | 42 38 31 30 44 50 57 53 43 57 48 56 41 19 | 47 51 44 41 69 68 52 61 52 64 34 69 68 20 | 58 69 48 52 71 81 71 74 65 97 51 68 61 21 | 74 89 60 72 98 85 94 84 86 96 49 99 83 22 |104 82 99 70 112 143 114 111 139 129 66 113 109 23 |123 101 108 106 137 148 143 137 144 139 66 143 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2023 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 2023 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 5 8 8 6 1 1 16 8 1 15 1 9 8 3 3 1 | 1 11 7 10 3 3 1 15 1 1 5 1 3 4 2 | 2 2 8 4 3 1 5 5 2 3 3 1 4 3 3 | 14 5 6 4 3 2 9 5 6 8 7 2 4 5 4 | 4 8 10 6 7 1 7 5 9 2 8 3 7 5 5 | 5 9 5 11 6 6 10 9 8 5 10 3 7 12 6 | 13 5 10 5 8 8 7 3 7 13 7 9 3 4 7 | 13 11 8 5 19 3 11 8 13 11 5 11 6 1 8 | 10 10 16 7 17 17 16 10 16 28 19 19 14 1 9 | 19 16 15 9 20 28 13 16 12 34 23 17 19 5 10 | 18 30 10 18 21 30 18 19 42 22 15 21 8 11 | 22 30 31 27 29 26 46 29 31 18 32 20 14 11 12 | 25 20 12 12 19 33 33 23 22 12 26 25 18 10 13 | 33 44 21 9 16 31 38 21 27 49 13 31 17 37 14 | 47 42 24 7 28 47 45 5 62 33 24 55 17 23 15 | 29 40 39 27 32 22 32 0 15 22 27 52 23 103 16 | 24 24 31 19 26 13 28 0 45 20 42 26 31 20 17 | 13 14 19 22 26 2 27 0 41 57 19 20 27 22 18 | 23 36 37 32 20 21 29 0 36 32 23 42 20 32 19 | 38 26 21 28 47 34 28 0 31 30 18 23 19 28 20 | 33 34 19 22 35 28 29 0 27 25 25 30 11 30 21 | 23 29 25 32 39 32 45 0 62 22 24 33 11 15 22 | 11 23 24 22 23 27 17 0 23 16 46 18 15 24 23 | 12 8 6 6 5 11 19 0 18 4 16 12 10 11 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2023 | April 2023 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 5 15 6 1 4 3 3 1 10 6 6 7 14 1 | 2 6 102 3 4 6 7 0 5 2 3 5 2 | 2 4 34 4 3 8 2 1 3 5 3 6 3 | 5 6 4 7 2 2 5 8 3 5 2 11 4 | 1 10 3 11 5 12 6 8 2 7 5 3 5 | 1 5 12 2 7 9 13 9 11 4 4 7 6 | 0 3 2 8 20 21 14 2 4 4 9 9 7 | 0 8 10 13 11 15 23 8 10 13 13 6 8 | 0 16 15 14 12 14 32 21 12 22 13 10 9 | 0 19 14 8 16 23 27 23 8 5 12 14 10 | 0 25 12 11 11 23 42 21 15 18 21 14 11 | 1 15 20 30 22 24 35 24 34 29 13 11 12 | 1 8 16 16 1 14 51 24 13 15 22 19 13 | 22 11 16 20 0 50 38 24 10 25 45 14 | 19 28 11 15 0 17 12 16 11 34 24 15 | 24 13 114 15 0 31 18 13 19 13 24 16 | 45 12 20 9 0 86 24 7 17 10 24 17 | 21 19 12 12 0 25 10 9 36 24 42 18 | 25 20 17 8 1 24 15 28 8 42 30 19 | 12 115 17 19 18 42 31 20 13 32 69 20 | 18 16 10 35 37 23 24 30 19 36 45 21 | 20 18 16 26 29 40 15 34 18 22 32 22 | 13 23 8 26 15 24 17 18 15 24 18 23 | 12 13 3 12 15 14 19 16 15 13 22 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2023 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 2023 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 49 76 79 42 31 25 33 56 24 24 37 46 43 47 34 1 | 41 83 94 55 54 45 37 37 27 23 25 21 46 69 43 2 | 48 67 75 62 44 42 36 48 41 17 38 38 37 51 34 3 | 37 91 89 49 40 45 30 34 40 31 16 33 40 51 34 4 | 43 98 92 58 30 34 29 40 30 30 23 33 31 50 25 5 | 35 81 57 47 29 31 22 29 45 20 26 32 27 50 32 6 | 35 83 88 35 50 37 17 40 16 22 28 43 37 63 26 7 | 38 89 69 54 27 34 28 32 32 16 25 32 34 61 32 8 | 36 75 78 54 56 52 37 26 36 24 31 40 26 60 28 9 | 45 74 94 39 53 28 31 34 39 28 43 41 38 60 25 10 | 41 85 75 39 46 39 46 30 37 41 50 37 40 71 43 11 | 47 99 95 42 51 31 35 45 29 30 50 37 49 82 43 12 | 48 86 88 44 39 40 33 40 31 28 31 41 38 57 50 13 | 41 46 90 31 50 41 33 33 20 26 27 0 25 36 37 14 | 39 45 67 22 25 38 28 19 19 20 24 3 27 26 35 15 | 41 47 47 20 24 26 17 23 14 15 15 18 22 19 30 16 | 29 30 26 17 21 27 14 15 8 5 12 13 11 12 14 17 | 30 33 31 10 9 12 9 11 8 9 7 9 17 6 6 18 | 23 23 29 11 14 7 10 16 5 8 12 7 4 7 6 19 | 22 22 21 12 4 6 8 7 8 8 6 11 14 9 8 20 | 33 26 14 11 15 16 11 16 6 9 14 14 10 9 19 21 | 41 37 18 19 18 14 20 11 7 11 14 13 19 17 17 22 | 48 39 25 22 23 22 21 23 15 16 16 16 37 28 20 23 | 69 68 37 30 19 31 31 22 18 25 24 30 43 23 36 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2023 | April 2023 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 39 42 33 29 43 41 35 102 94 87 30 40 51 48 41 1 | 51 48 38 26 39 48 42 92 105 118 41 49 40 54 49 2 | 53 46 50 32 31 49 41 92 99 116 50 38 41 61 56 3 | 55 39 49 30 28 42 58 105 107 93 49 29 59 36 43 4 | 44 29 52 31 30 42 49 102 110 109 36 36 42 52 55 5 | 52 29 41 27 35 39 56 91 105 121 46 57 67 69 66 6 | 34 35 51 19 43 25 39 103 110 107 55 28 49 53 62 7 | 39 37 35 37 38 38 39 116 103 90 37 38 59 58 60 8 | 39 41 38 37 23 36 29 114 100 15 39 43 57 60 71 9 | 40 40 33 39 36 37 39 120 109 37 33 51 49 52 56 10 | 42 42 47 53 42 54 48 115 134 47 45 49 78 63 63 11 | 53 38 56 54 51 56 102 129 142 27 55 59 95 56 73 12 | 57 36 37 33 40 52 108 131 119 38 35 62 83 74 76 13 | 48 29 41 47 41 47 99 102 95 42 53 63 75 54 45 14 | 28 25 34 32 33 43 83 84 87 23 31 37 38 61 37 15 | 12 19 21 21 19 22 57 60 73 26 29 38 34 39 25 16 | 25 17 20 11 12 11 45 48 60 13 11 15 20 22 27 17 | 8 8 13 4 10 4 25 36 45 11 14 14 14 15 20 18 | 15 8 8 7 4 7 20 23 32 8 13 9 13 13 7 19 | 8 9 16 10 6 11 19 21 21 11 16 13 12 15 8 20 | 12 18 8 17 13 16 42 42 35 4 17 12 12 19 15 21 | 17 25 13 13 24 23 60 42 45 12 13 35 26 22 19 22 | 30 21 0 23 26 28 62 68 69 16 13 24 41 30 26 23 | 28 24 2 36 26 28 83 92 59 29 30 45 32 43 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2023 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 2023 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 11h| 60 40 32 - - 20 - 38 20 30 12 - - - - 12 | 55 50 50 - - 24 - - 34 38 18 - - - 22 13 | 88 55 45 - - 72 - - - - 20 - - - 21 14 | 80 58 - - - 58 - - - - - - - - 18 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2023 | April 2023 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 11h| - - - 6 26 - 68 44 26 30 - - - - - 12 | 24 - 24 16 26 28 62 52 - - - - - - - 13 | 25 - 21 - 26 48 58 - - - - - - - - 14 | - - - - 30 - 60 - - - - - - - - ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2023 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 | April 2023 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 3 3 2 4 8 8 10 9 5 8 7 4 8 0 8 1 | 5 5 7 6 7 5 14 8 5 7 6 7 9 0 6 2 | 8 6 9 3 6 6 10 14 12 7 9 8 12 0 10 3 | 7 7 8 8 6 6 5 6 3 4 9 6 9 0 10 4 | 12 4 12 5 6 10 8 4 3 10 5 5 4 0 9 5 | 4 2 4 2 4 1 5 2 2 5 2 10 10 3 1 6 | 4 4 1 1 2 7 5 1 2 4 3 1 3 7 3 7 | 1 3 2 3 1 3 3 3 1 2 2 7 4 4 1 8 | 2 4 4 2 3 0 0 2 1 1 1 5 12 1 7 9 | 3 3 3 1 2 1 2 2 2 2 3 3 0 3 6 10 | 4 3 2 0 1 3 0 2 1 1 2 5 3 1 2 11 | 3 4 1 0 0 1 3 2 1 4 5 7 0 0 3 12 | 7 8 4 1 2 3 6 4 2 2 5 4 0 4 2 13 | 1 3 3 0 1 3 2 3 3 4 4 7 0 3 0 14 | 2 0 1 5 1 2 2 6 3 1 6 5 0 7 0 15 | 1 2 2 2 2 5 3 6 6 2 4 1 0 6 0 16 | 2 2 2 3 1 1 3 2 3 4 4 2 0 4 0 17 | 1 3 1 0 3 2 1 4 2 2 5 2 0 1 1 18 | 3 2 2 0 1 2 2 2 3 1 1 1 0 5 3 19 | 4 1 0 0 2 3 1 2 0 4 1 1 0 3 4 20 | 3 4 2 0 1 1 7 4 4 1 6 4 0 2 0 21 | 3 1 2 1 2 1 1 3 4 1 0 2 0 1 2 22 | 1 4 1 2 6 6 2 6 4 4 3 2 0 8 0 23 | 9 6 5 7 12 4 6 7 6 7 9 5 0 2 6 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2023 | April 2023 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 6 10 8 11 3 9 5 2 8 0 0 4 1 | 12 4 5 3 3 8 7 4 2 0 0 7 2 | 9 7 5 3 3 13 6 10 7 0 0 3 3 | 7 7 5 9 6 9 8 1 8 0 0 2 4 | 4 3 2 5 5 6 9 7 7 0 0 4 5 | 2 5 2 5 6 8 5 5 4 0 0 0 6 | 3 5 2 6 3 3 5 0 3 0 0 2 7 | 3 4 2 5 5 5 5 5 5 0 0 2 8 | 1 6 5 2 7 1 7 2 3 2 0 0 0 9 | 5 3 4 4 6 7 2 4 4 2 0 0 1 10 | 4 3 4 2 2 0 3 5 2 2 0 0 3 11 | 3 4 3 3 4 4 5 5 0 0 0 1 2 12 | 1 0 2 3 3 0 1 5 1 0 0 0 1 13 | 2 2 2 0 3 3 3 2 2 0 0 0 0 14 | 0 0 2 0 6 4 4 5 6 0 0 0 3 15 | 3 3 5 5 1 2 6 2 4 0 0 0 0 16 | 4 2 4 2 2 2 1 3 0 0 0 0 3 17 | 0 1 2 0 2 1 3 4 1 0 0 0 1 18 | 1 2 4 1 4 4 4 2 2 0 0 0 2 19 | 2 2 3 1 4 1 3 1 4 0 0 0 2 20 | 1 1 3 1 3 3 5 1 1 0 0 0 1 21 | 0 4 2 4 2 0 4 3 1 0 1 0 2 22 | 0 3 4 4 2 5 9 2 2 0 0 0 4 23 | 4 4 9 9 6 3 14 2 7 0 0 0 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2023 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 | April 2023 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 2 3 1 2 1 0 4 2 0 1 0 0 2 2 0 1 | 1 1 4 2 2 0 0 1 0 0 0 0 2 1 2 2 | 1 1 1 0 1 0 1 3 0 0 0 1 1 1 0 3 | 0 2 0 3 0 0 0 1 0 0 0 4 4 1 0 4 | 0 1 1 2 1 1 0 2 1 0 2 2 1 1 0 5 | 1 1 0 4 1 0 1 0 2 0 0 1 2 2 0 6 | 3 1 1 2 0 0 2 1 2 1 3 0 4 0 0 7 | 2 0 0 2 1 0 4 0 0 0 1 2 1 0 0 8 | 1 1 1 0 1 1 0 2 0 0 0 0 1 0 1 9 | 1 0 1 1 0 1 0 0 0 0 0 1 0 1 1 10 | 0 0 0 0 0 0 0 0 0 0 1 1 3 0 2 11 | 1 0 0 0 0 0 0 0 1 1 0 0 0 0 1 12 | 0 3 0 0 0 0 0 1 0 0 0 0 0 0 0 13 | 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 14 | 0 0 0 0 0 0 1 1 0 0 1 1 0 1 0 15 | 1 0 0 0 0 0 0 1 0 0 0 2 0 0 1 16 | 0 1 0 0 0 1 0 0 0 0 1 0 0 0 1 17 | 0 0 0 0 1 0 0 2 1 0 1 1 0 1 1 18 | 0 0 0 0 0 1 0 0 1 0 0 1 0 1 0 19 | 1 0 0 1 1 0 0 0 0 0 1 3 4 1 1 20 | 1 0 3 0 0 0 1 0 1 0 1 0 1 2 2 21 | 1 2 0 0 2 1 0 1 0 2 0 3 0 1 2 22 | 4 1 0 0 0 2 2 1 1 4 0 0 2 3 1 23 | 1 1 0 1 2 2 0 0 2 2 2 2 1 2 4 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2023 | April 2023 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 2 1 3 2 1 1 4 6 2 1 2 3 4 0 0 1 | 3 1 4 0 0 1 2 2 2 1 3 2 1 3 0 2 | 2 0 1 1 1 5 1 4 2 2 0 1 0 3 0 3 | 1 4 1 3 1 1 1 2 3 3 0 2 1 1 2 4 | 2 3 0 4 1 0 3 4 2 0 0 7 1 4 4 5 | 2 3 1 3 2 5 4 4 2 1 4 1 0 8 2 6 | 5 1 0 0 2 2 2 2 2 2 1 3 2 4 3 7 | 3 1 2 1 4 1 4 2 1 0 2 1 7 2 2 8 | 1 1 2 0 0 1 1 1 5 1 0 3 0 7 1 9 | 2 2 0 0 0 0 5 0 1 0 1 0 2 1 1 10 | 0 1 0 0 0 2 0 0 2 0 0 0 1 3 1 11 | 0 0 0 0 0 0 0 0 1 0 1 0 1 0 0 12 | 0 1 0 0 0 0 1 1 1 2 0 0 0 1 1 13 | 0 1 0 1 0 0 2 0 0 0 1 1 0 2 1 14 | 1 0 0 0 1 1 0 1 0 0 0 0 0 0 0 15 | 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 16 | 0 1 0 1 0 0 2 0 1 0 1 0 0 2 0 17 | 0 0 0 0 1 0 0 1 0 0 1 1 1 0 0 18 | 1 1 0 0 0 0 0 0 0 2 1 1 1 0 0 19 | 1 2 0 0 0 3 1 2 1 0 0 0 0 0 1 20 | 1 2 0 0 4 2 2 2 2 2 1 1 2 0 1 21 | 1 1 0 0 2 1 5 1 0 0 2 4 0 0 1 22 | 0 3 1 3 4 4 4 6 0 0 1 1 2 1 4 23 | 0 0 1 1 3 4 4 1 2 2 1 1 2 2 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2023 Frequency: 50.408 MHz GB3MBA Transmitter: BAA Radio Section and RSGB beacon, Sherwood Observatory, UK (1 13' 20" W, 53 06' 51" N), 80 W, carrier (A1A id every 10 min), RHCP,upward beaming https://ukmeteorbeacon.org/Tx Antenna: 6m Turnstile ON4ZK, elev 45 deg, azimuth 250 deg (SW) Pre-amplifier: Bandpass 49.9 MHz, SSB LNA600 Receiver: FunCubeDongle Pro+ IF gain 18 dB Observing method: Spectrumlab, Colorgramme RMOB Lab v 2.5, PC Win10H | April 2023 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 3 5 0 0 1 0 4 2 0 0 2 0 3 0 0 1 | 2 3 0 0 0 0 2 3 0 2 0 5 1 0 0 2 | 3 1 0 1 0 0 3 5 1 1 1 4 3 1 0 3 | 1 4 0 0 0 0 4 3 1 0 1 2 5 0 0 4 | 4 2 0 0 0 0 2 2 0 0 1 1 1 0 1 5 | 2 5 0 0 2 0 5 0 1 0 0 3 0 0 0 6 | 2 0 0 0 1 0 3 5 0 1 0 1 0 0 1 7 | 3 0 0 0 0 0 3 4 0 1 0 9 0 0 1 8 | 1 0 0 2 1 0 4 1 0 0 1 5 0 1 0 9 | 2 1 0 0 0 0 2 0 0 0 1 6 1 2 0 10 | 2 0 0 0 1 0 0 0 0 0 0 5 0 0 0 11 | 3 0 0 0 0 0 2 0 0 0 0 0 1 0 0 12 | 3 0 0 0 0 0 4 1 0 0 0 0 1 0 0 13 | 3 0 0 0 0 0 1 0 0 0 1 0 0 0 0 14 | 2 0 0 0 0 0 3 0 1 1 0 2 0 0 4 15 | 0 0 0 0 0 0 3 0 0 0 0 1 0 0 1 16 | 1 0 0 0 0 2 1 0 0 0 0 0 0 0 4 17 | 2 0 0 0 0 0 1 0 0 0 0 1 0 0 3 18 | 0 0 0 0 0 0 1 1 0 1 0 2 0 0 2 19 | 1 0 0 0 0 0 2 0 0 3 0 2 0 0 1 20 | 0 0 0 0 0 0 3 0 0 1 0 0 0 0 2 21 | 3 0 0 0 0 1 0 0 0 0 0 1 0 0 3 22 | 4 0 0 0 0 3 1 0 0 1 0 1 0 0 3 23 | 2 0 0 0 0 2 2 0 0 0 0 0 0 0 4 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2023 | April 2023 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 0 0 0 1 0 6 9 4 0 1 1 0 2 1 1 1 | 1 0 0 0 0 6 6 10 1 0 0 0 2 0 0 2 | 0 0 3 0 0 2 5 2 1 1 0 0 4 4 0 3 | 1 0 0 0 0 7 1 12 0 2 1 1 8 4 0 4 | 0 1 0 0 0 2 1 4 0 2 0 0 5 4 1 5 | 0 0 0 1 0 5 1 2 2 0 1 1 2 5 0 6 | 0 0 1 0 0 2 0 0 5 1 0 0 4 6 0 7 | 0 0 0 0 0 2 0 1 4 0 0 0 1 0 0 8 | 0 1 1 0 1 1 0 0 3 0 0 0 0 2 0 9 | 0 6 0 4 3 0 2 1 6 0 0 0 0 2 0 10 | 2 0 0 0 0 0 0 0 9 1 0 0 0 0 1 11 | 0 0 2 1 0 0 0 2 5 1 1 0 2 0 0 12 | 0 3 1 1 0 0 0 1 0 0 0 0 4 0 0 13 | 2 1 0 0 0 0 1 0 0 0 0 0 0 2 14 | 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 15 | 0 0 0 2 3 0 0 0 0 0 0 0 0 0 0 16 | 0 2 0 0 1 0 1 1 1 0 0 0 0 0 0 17 | 0 0 0 0 0 0 3 1 0 0 0 0 0 0 0 18 | 0 0 0 2 1 0 2 1 0 0 0 0 0 0 0 19 | 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 20 | 0 0 0 0 0 3 5 1 0 0 1 0 0 0 0 21 | 0 1 0 0 0 3 6 0 0 0 0 0 3 0 1 22 | 1 0 0 1 6 4 10 0 0 0 0 0 1 0 0 23 | 0 0 0 0 3 11 10 2 0 0 0 1 2 0 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2023 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 2023 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 2 1 1 0 2 2 0 2 2 2 2 4 1 3 0 1 | 2 1 2 1 0 0 4 2 2 2 4 2 1 5 4 2 | 6 1 2 3 2 5 3 0 2 4 4 2 2 3 2 3 | 2 6 4 2 1 2 2 6 5 2 7 6 4 4 2 4 | 6 1 3 0 2 2 4 0 6 4 2 4 6 3 4 5 | 0 4 2 0 3 2 2 3 3 0 4 5 4 5 1 6 | 1 0 3 1 3 2 3 3 4 2 2 5 2 6 3 7 | 2 4 5 2 3 3 3 3 2 3 2 4 2 2 3 8 | 0 2 4 0 1 4 5 3 3 4 2 1 3 4 3 9 | 0 2 1 0 3 2 2 7 3 1 4 2 2 2 2 10 | 1 1 2 2 0 3 1 1 0 3 1 3 2 2 1 11 | 4 2 1 2 0 2 4 0 2 1 1 2 1 0 2 12 | 3 1 0 9 1 4 3 1 0 4 1 1 0 0 3 13 | 2 0 1 0 0 1 2 1 1 3 1 2 2 2 4 14 | 1 2 2 2 1 0 0 0 1 3 0 1 0 1 3 15 | 1 2 0 3 0 1 2 0 0 1 1 2 1 0 1 16 | 2 1 0 1 1 2 0 1 0 0 0 0 0 2 1 17 | 1 2 1 1 1 0 0 2 2 0 1 1 1 0 1 18 | 2 0 1 3 1 1 3 1 1 0 0 0 1 1 3 19 | 0 1 0 0 2 1 1 3 2 2 1 1 2 2 1 20 | 0 2 1 2 2 1 1 1 3 4 4 2 2 0 1 21 | 0 1 0 2 1 1 1 3 4 1 0 3 3 2 1 22 | 4 0 3 0 1 2 1 0 4 1 3 1 0 2 3 23 | 0 1 1 2 0 2 1 3 2 2 0 2 3 2 0 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2023 | April 2023 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 3 3 1 3 0 3 3 5 3 3 0 0 2 2 4 1 | 4 6 2 5 7 3 6 1 2 1 3 5 5 3 3 2 | 1 0 2 4 5 3 5 5 3 1 1 2 2 3 1 3 | 4 0 3 1 1 3 3 8 1 4 2 2 2 5 3 4 | 2 6 1 4 3 0 8 3 3 1 2 1 2 5 6 5 | 5 5 3 4 3 3 2 5 2 3 5 1 4 5 5 6 | 2 2 3 2 2 4 7 4 12 7 3 5 6 3 4 7 | 4 3 5 4 6 6 9 4 5 2 4 3 1 3 9 8 | 1 2 6 5 6 3 3 3 7 4 3 4 3 10 3 9 | 4 1 4 4 2 0 5 2 3 1 5 6 3 4 1 10 | 1 3 4 2 5 0 3 3 4 4 5 3 3 3 2 11 | 8 2 0 3 4 0 4 3 1 1 3 0 0 5 5 12 | 4 3 0 1 4 0 4 0 4 2 2 1 1 4 2 13 | 2 0 1 1 0 1 3 4 1 4 2 3 4 3 4 14 | 1 3 3 0 0 4 0 0 2 0 2 1 5 2 1 15 | 1 1 2 2 1 0 0 2 7 3 3 1 0 1 3 16 | 1 2 2 0 0 1 1 1 1 2 0 1 3 1 3 17 | 1 0 1 0 1 1 2 1 0 1 2 1 2 0 2 18 | 3 0 1 1 1 2 2 1 3 0 0 1 0 1 3 19 | 3 1 0 3 0 0 3 0 2 1 1 1 2 1 1 20 | 2 2 4 2 2 1 0 0 1 5 3 2 2 0 1 21 | 1 1 2 2 4 3 5 3 2 2 2 1 1 1 0 22 | 2 1 2 1 1 3 1 2 1 5 1 4 2 4 1 23 | 2 5 2 1 2 2 2 6 1 0 2 1 1 2 0 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2023 Kees -------------------------------------------------------------------- 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 | April 2023 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 3 9 14 4 5 10 5 11 11 8 10 12 12 5 5 1 | 6 5 7 8 6 9 8 11 2 6 6 6 6 4 4 2 | 4 5 5 10 5 6 8 7 6 7 6 6 8 5 4 3 | 5 13 23 11 8 3 11 13 13 8 13 10 9 13 10 4 | 13 22 17 13 17 11 29 20 20 27 15 12 25 18 15 5 | 24 28 23 16 39 21 28 21 22 27 20 24 31 36 30 6 | 18 31 36 32 29 27 35 31 32 31 35 33 30 48 32 7 | 28 24 29 23 36 35 44 29 44 34 33 33 41 42 53 8 | 32 53 43 40 34 42 43 39 35 59 49 41 44 37 42 9 | 32 50 66 38 42 44 50 54 58 58 48 44 48 48 51 10 | 42 55 48 56 42 52 58 63 62 72 49 54 52 56 68 11 | 53 59 63 40 56 43 68 66 54 47 62 46 52 62 43 12 | 35 53 57 39 54 43 55 59 63 49 45 68 41 39 39 13 | 35 42 49 46 52 37 48 41 41 52 57 55 45 43 43 14 | 46 50 42 46 41 45 58 62 62 71 60 53 47 45 41 15 | 36 52 39 47 50 52 54 53 60 75 58 49 60 53 35 16 | 48 50 46 40 40 48 45 66 42 50 50 58 46 55 41 17 | 36 48 37 24 37 37 43 51 33 46 49 34 44 46 18 | 35 42 32 35 31 24 40 52 45 41 52 36 33 43 46 19 | 25 47 38 44 31 43 34 39 33 35 33 35 36 42 40 20 | 33 37 38 32 32 32 22 48 33 40 40 41 33 35 55 21 | 30 31 20 25 35 33 32 32 31 31 20 38 24 34 21 22 | 29 16 18 25 9 17 16 12 24 19 19 19 14 22 27 23 | 7 11 14 14 19 14 9 16 12 8 9 18 8 6 22 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2023 | April 2023 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 17 7 10 9 10 6 7 6 17 8 8 9 4 7 10 1 | 11 7 3 5 15 8 6 7 5 12 7 10 4 4 4 2 | 5 8 10 8 8 8 5 5 6 8 9 6 6 4 7 3 | 23 16 8 11 8 9 13 9 12 14 8 13 13 7 5 4 | 10 21 18 20 16 12 12 26 14 15 12 18 18 14 11 5 | 24 29 22 21 31 26 30 38 26 30 22 27 25 17 14 6 | 36 24 33 32 23 31 28 45 33 31 29 29 34 24 26 7 | 41 39 37 37 40 36 39 44 31 36 30 29 30 30 17 8 | 46 48 52 50 45 61 48 45 44 31 31 40 36 39 24 9 | 46 54 61 34 41 54 51 51 52 41 48 39 50 47 42 10 | 38 66 77 54 44 50 51 59 37 43 44 54 52 44 63 11 | 44 65 59 44 49 50 51 39 28 51 53 30 59 42 52 12 | 41 36 59 49 50 52 60 47 45 57 37 40 66 47 80 13 | 53 46 59 56 42 53 62 59 35 48 38 46 60 46 75 14 | 64 54 58 46 48 69 55 53 52 61 56 43 58 54 66 15 | 46 63 58 59 52 53 67 73 59 52 43 63 75 65 73 16 | 54 51 57 49 61 55 54 51 37 53 48 51 59 60 50 17 | 37 58 58 59 52 53 44 53 42 28 25 53 50 41 40 18 | 42 45 47 41 51 26 38 35 38 37 34 39 37 32 44 19 | 45 35 38 43 44 41 39 41 45 50 34 42 38 45 58 20 | 29 29 37 42 37 33 34 24 38 33 38 41 33 38 30 21 | 31 28 38 24 28 27 31 29 46 31 34 24 35 30 32 22 | 16 26 25 13 19 16 15 27 22 22 22 21 28 25 15 23 | 11 17 15 14 10 12 7 13 16 8 12 15 9 11 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2023 Stan Nelson -------------------------------------------------------------------- Observer: Hiroshi Ogawa Location: Tsukuba, Ibaraki, Japan (36 02' N, 140 03' E) Frequency: 89.4 MHz Antenna : FA2 (2el.), az 270 deg, elev 0 deg Receiver: R820T2&SDR+TCXO Computer: NEC Lavie Win8 (Core i7) Observing method: HROFFT (manual count) + Colorgramme RMOB Lab v 3.0 | April 2023 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 10 7 8 4 3 12 6 12 4 9 2 14 6 12 10 1 | 8 6 6 13 7 8 13 10 7 4 10 10 15 10 10 2 | 7 10 10 8 8 10 8 3 10 4 9 7 5 14 3 | 10 9 5 9 6 10 12 15 5 9 5 19 9 14 13 4 | 6 15 5 5 10 13 10 10 7 9 9 12 10 7 11 5 | 4 6 9 7 6 8 7 6 5 6 11 5 7 5 9 6 | 8 3 9 5 2 5 4 2 4 9 8 4 5 14 4 7 | 6 7 8 4 4 4 2 8 2 4 7 8 10 7 3 8 | 5 3 6 5 4 7 6 0 5 7 4 4 7 6 9 9 | 4 4 6 6 5 8 8 2 2 6 3 4 6 4 5 10 | 6 1 1 6 3 3 5 3 4 2 6 5 6 8 8 11 | 3 4 5 4 2 10 4 2 5 6 6 3 9 2 3 12 | 3 6 3 5 3 3 9 2 3 4 4 8 9 9 10 13 | 8 2 5 5 7 4 7 4 6 7 8 6 6 3 3 14 | 6 11 7 5 10 9 12 9 7 1 7 1 11 6 4 15 | 12 5 14 10 7 13 8 10 6 10 9 8 8 5 4 16 | 6 8 7 7 11 11 12 14 14 12 15 9 18 17 | 9 10 4 16 9 19 14 5 14 11 12 13 8 11 18 | 14 18 7 5 8 12 11 7 11 14 14 15 15 18 12 19 | 4 10 10 13 17 15 8 16 9 9 11 9 12 14 9 20 | 13 4 9 6 17 14 8 13 11 5 10 8 4 3 4 21 | 9 8 11 4 10 11 13 7 6 1 9 8 7 9 4 22 | 11 7 3 6 10 10 12 4 10 3 8 1 9 4 6 23 | 10 8 9 5 7 11 12 2 9 7 12 13 4 8 8 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2023 | April 2023 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 5 9 4 7 15 11 10 14 11 7 10 12 13 13 18 1 | 7 12 8 8 5 15 6 13 8 12 13 9 12 14 12 2 | 6 7 6 5 9 8 11 16 5 10 11 10 10 11 13 3 | 3 10 8 4 6 10 6 5 12 11 17 14 7 5 16 4 | 8 5 4 11 10 14 7 10 6 9 6 8 3 13 18 5 | 3 4 4 8 9 2 11 9 1 3 10 8 5 6 9 6 | 9 4 6 3 7 9 6 7 10 5 8 4 5 9 15 7 | 2 7 7 6 9 7 6 5 9 7 9 6 5 6 6 8 | 7 4 3 3 7 7 5 4 5 3 8 8 7 5 8 9 | 6 4 2 4 6 10 4 3 3 5 7 8 3 6 6 10 | 7 3 4 6 7 5 4 1 0 1 7 8 4 4 2 11 | 3 6 3 5 9 4 3 4 2 3 7 1 8 8 7 12 | 8 4 2 6 10 8 4 13 2 7 5 4 7 6 7 13 | 5 9 5 8 11 5 12 11 9 4 6 5 11 7 7 14 | 7 7 5 5 10 9 20 12 3 3 9 5 8 15 1 15 | 12 13 8 8 19 11 14 13 10 6 9 16 8 11 10 16 | 13 12 8 17 22 8 13 11 13 13 11 20 21 17 | 10 13 6 17 9 18 6 15 2 11 14 14 19 8 18 | 18 11 15 11 13 14 16 10 9 14 19 17 29 19 | 15 18 11 11 12 15 17 14 19 10 11 10 16 22 18 20 | 13 11 8 13 10 8 8 9 18 11 11 19 12 20 17 21 | 7 12 5 12 9 15 15 4 7 8 6 15 12 14 16 22 | 10 10 11 10 7 12 13 9 10 8 8 9 11 12 16 23 | 8 13 4 5 13 8 15 8 12 11 10 12 8 18 8 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2023 Frequency: 92.5 MHz Antenna : AF-4 (4el.), az 270 deg, elev 0 deg Receiver: R820T2&SDR+TCXO Computer: NEC VersaPro Win10 (Core i5) Observing method: HROFFT (manual count) + Colorgramme RMOB Lab v 3.0 | April 2023 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 14 11 10 10 12 10 11 7 12 10 15 13 13 1 | 10 11 19 14 17 11 21 6 14 16 16 12 11 12 2 | 11 9 12 17 16 9 10 10 4 8 12 7 5 22 3 | 10 17 14 12 14 19 16 14 10 12 6 9 7 18 4 | 7 12 10 11 15 16 14 10 12 13 9 23 5 | 4 7 17 16 2 6 8 19 15 10 13 5 23 6 | 8 6 9 9 3 11 5 8 6 9 7 4 6 7 | 5 5 7 5 5 5 7 12 7 2 6 7 4 8 | 2 4 7 2 6 8 6 5 6 7 5 4 8 9 | 4 9 6 3 7 7 4 2 7 4 3 5 10 | 4 4 8 4 9 6 11 6 5 4 2 6 11 | 3 8 6 5 11 5 7 7 14 7 2 4 12 | 4 6 13 4 4 12 8 9 7 6 8 11 13 | 10 8 10 8 5 5 12 22 11 10 9 7 7 18 14 | 11 17 12 9 7 30 14 10 11 11 4 9 15 | 28 8 25 20 6 14 16 21 24 24 19 17 29 15 12 16 | 23 22 21 18 20 19 24 27 36 21 23 27 22 25 22 17 | 21 26 17 21 25 16 29 33 25 16 22 21 34 22 27 18 | 18 18 18 10 12 22 19 29 29 33 18 33 34 29 19 | 13 18 21 23 27 23 21 31 18 16 21 22 29 21 20 | 33 7 14 22 21 25 30 22 20 14 17 19 30 21 21 | 17 18 20 15 14 13 17 13 13 11 13 16 17 28 22 | 20 13 14 13 17 21 7 20 6 7 17 23 19 23 | 14 12 17 12 8 13 11 10 13 7 10 23 19 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2023 | April 2023 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 8 14 14 11 15 17 11 9 20 14 22 14 19 16 21 1 | 8 11 19 12 12 17 11 10 15 14 14 14 11 20 17 2 | 10 10 11 9 13 20 13 14 13 10 24 13 16 17 12 3 | 11 12 12 13 13 21 8 4 0 9 25 25 15 15 0 4 | 13 8 10 15 18 18 10 7 10 7 10 15 8 14 13 5 | 12 7 10 12 17 6 12 9 4 8 18 11 7 7 12 6 | 17 7 9 11 12 12 9 7 11 6 13 6 6 10 13 7 | 4 2 12 6 12 10 3 6 3 7 9 6 6 9 7 8 | 8 8 11 1 7 9 5 5 2 7 10 9 7 5 7 9 | 10 6 9 4 4 9 6 7 2 4 9 8 3 4 6 10 | 5 4 6 7 7 7 5 2 5 11 6 3 3 11 | 3 8 5 2 9 5 2 4 3 12 8 3 12 | 10 3 6 8 12 8 5 16 6 12 12 12 4 8 13 | 9 10 11 10 15 6 12 19 15 9 17 14 8 8 14 | 11 9 16 14 14 16 19 15 12 12 13 6 11 13 15 | 18 14 16 12 27 23 13 26 15 14 26 38 18 17 17 16 | 24 18 19 24 9 28 23 17 21 11 30 23 25 19 32 17 | 15 26 28 21 26 25 22 19 17 10 28 31 28 14 26 18 | 28 36 27 26 19 22 14 26 15 16 28 28 25 25 31 19 | 28 36 17 22 28 27 20 24 17 22 24 26 34 19 22 20 | 26 20 15 18 18 23 15 24 18 23 20 20 28 21 25 21 | 7 19 20 15 20 21 14 12 8 16 11 20 13 15 18 22 | 16 18 17 13 13 14 16 15 13 17 14 14 15 13 17 23 | 11 14 9 0 22 11 18 14 11 22 19 13 15 20 19 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2023 Hiroshi Ogawa -------------------------------------------------------------------- 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 2023 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 23 0 22 27 27 27 32 47 22 35 22 0 29 61 35 1 | 27 0 31 26 34 25 32 46 36 17 70 0 33 37 45 2 | 21 0 35 30 39 41 33 30 52 45 33 0 44 26 33 3 | 26 33 32 35 75 30 35 30 44 35 61 10 43 37 21 4 | 26 52 37 26 58 36 40 75 29 46 53 28 34 40 28 5 | 30 53 61 35 49 28 40 57 37 17 38 32 36 51 34 6 | 40 59 57 33 52 0 47 54 54 34 67 36 38 32 28 7 | 58 68 58 41 50 0 55 66 55 35 47 42 51 40 48 8 | 55 71 73 67 64 0 61 73 71 62 69 79 87 63 63 9 | 68 69 57 62 82 0 84 77 56 96 119 53 66 70 87 10 | 75 79 78 68 61 0 72 96 65 69 99 70 99 81 102 11 |107 86 64 72 108 16 111 116 90 91 88 100 90 79 107 12 |114 93 84 116 92 82 85 121 114 91 27 110 112 98 97 13 |130 102 80 88 104 111 114 130 105 126 0 99 101 87 127 14 | 94 91 85 75 82 101 91 103 101 124 0 79 78 87 79 15 | 96 84 93 61 80 72 86 89 97 79 0 59 87 69 77 16 | 72 60 49 56 66 73 57 77 64 52 0 40 46 39 45 17 | 0 47 34 58 49 61 41 54 31 40 0 47 67 29 51 18 | 0 47 50 36 32 38 55 45 61 35 0 30 20 32 27 19 | 0 23 22 38 32 25 47 28 30 41 0 26 24 25 15 20 | 0 17 24 27 24 24 33 23 18 32 0 19 22 19 18 21 | 0 27 31 25 17 20 23 42 36 37 0 18 12 20 7 22 | 0 17 17 14 12 26 31 38 20 29 0 16 14 16 11 23 | 0 30 23 41 29 32 29 18 27 41 0 16 17 41 21 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2023 | April 2023 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 18 17 21 31 7 35 22 16 37 47 47 61 0 92 19 1 | 16 20 33 29 0 33 39 28 41 18 34 32 0 35 31 2 | 28 28 26 36 0 28 31 30 17 42 35 33 0 39 33 3 | 23 20 27 43 21 29 37 39 39 45 34 32 40 30 30 4 | 12 25 40 27 45 21 51 46 39 45 34 34 30 46 26 5 | 31 32 20 0 57 40 42 55 49 40 33 33 31 35 34 6 | 37 37 26 0 57 49 52 77 62 57 47 34 51 52 32 7 | 36 41 53 0 61 71 72 97 46 59 51 50 58 41 36 8 | 47 36 67 0 62 58 71 115 67 32 74 106 67 65 43 9 | 60 45 80 0 108 106 65 110 73 57 65 69 70 101 67 10 | 93 90 52 0 92 83 125 128 95 57 85 94 104 126 87 11 | 94 86 63 31 130 105 130 159 109 92 99 122 106 123 85 12 | 82 87 89 108 150 133 146 153 117 111 114 146 139 158 137 13 | 80 110 99 118 125 133 148 157 120 132 132 128 153 159 138 14 | 56 81 90 114 143 127 108 113 108 94 81 115 128 94 127 15 | 80 73 85 81 88 86 77 85 99 83 82 98 87 89 82 16 | 56 74 69 58 60 68 63 71 88 51 80 61 90 56 52 17 | 29 43 43 42 55 66 56 47 61 78 76 48 51 48 36 18 | 22 27 35 47 40 28 27 49 66 54 28 62 24 40 40 19 | 18 21 44 49 20 24 30 0 28 29 39 48 32 46 27 20 | 13 24 44 61 32 54 46 0 42 65 58 38 49 43 30 21 | 28 14 36 42 12 25 31 0 26 32 33 0 29 31 34 22 | 25 22 31 26 52 23 28 16 52 56 24 0 29 37 23 23 | 21 20 26 23 45 19 45 30 50 103 45 0 40 38 18 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2023 Mike Otte -------------------------------------------------------------------- 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 2023 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 20 23 25 4 9 3 2 2 6 2 2 3 1 | 13 18 25 6 13 6 4 1 2 6 2 5 3 1 2 | 8 23 22 14 16 10 4 3 2 9 2 8 6 1 3 | 26 23 36 3 27 11 7 3 3 6 7 42 8 4 | 13 4 21 28 11 12 15 9 4 2 10 9 38 7 2 5 | 2 14 30 16 10 15 4 6 11 15 6 39 7 22 6 6 | 2 10 20 23 14 11 6 11 16 13 9 33 4 40 7 | 3 14 24 17 21 13 3 11 2 22 8 7 46 1 8 | 5 11 15 18 20 17 3 29 20 3 5 13 71 9 | 18 21 11 20 10 14 6 15 15 6 6 3 21 19 2 10 | 16 28 30 33 30 12 10 9 2 46 9 4 32 35 11 | 19 24 29 32 28 10 8 10 4 33 6 2 16 11 12 | 14 21 29 1 18 21 12 2 18 10 31 43 07 6 5 13 | 12 22 32 3 12 17 14 3 20 39 46 20 26 5 1 14 | 6 12 23 25 13 5 5 20 10 22 16 17 6 15 | 7 13 31 1 15 18 8 8 43 8 20 8 12 4 2 16 | 7 31 36 34 32 17 4 2 37 14 14 8 2 1 3 17 | 14 30 10 17 14 14 5 11 29 14 18 40 3 18 | 15 37 29 22 25 1 21 14 12 31 18 8 8 8 19 | 14 1 7 23 22 20 5 17 12 12 26 14 6 7 20 | 11 22 13 15 18 1 7 4 15 6 5 1 2 21 | 1 14 26 16 12 9 3 1 1 1 7 8 22 | 27 20 8 11 8 9 1 1 3 8 5 2 23 | 12 28 12 8 6 8 5 1 3 1 1 3 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2023 | April 2023 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 1 20 1 30 2 6 9 1 1 | 2 1 2 2 1 1 1 14 2 | 2 2 1 2 1 2 2 3 2 3 | 2 2 2 1 1 1 5 3 19 5 4 | 8 3 2 14 8 3 15 6 3 6 6 21 6 5 | 9 1 3 10 74 3 17 2 60 4 10 3 4 42 5 6 | 3 2 5 13 49 1 6 5 39 15 38 21 19 2 7 | 2 2 1 19 7 1 5 4 4 51 26 1 25 7 4 8 | 1 2 8 3 1 2 7 25 29 1 1 33 8 1 9 | 1 2 5 1 4 42 8 4 5 6 8 1 10 | 1 1 14 4 3 6 3 2 1 6 4 11 | 5 1 1 5 14 32 2 8 2 7 23 12 | 3 1 2 1 2 55 1 64 20 7 38 3 19 2 16 13 | 2 4 1 6 1 160 122 10 9 4 10 4 26 14 | 2 2 1 2 4 82 6 52 4 1 3 27 14 15 | 6 3 12 122 1 3 15 1 2 19 16 | 1 58 8 119 33 1 1 1 16 17 | 1 1 7 19 56 1 5 5 21 18 | 3 14 7 26 1 53 7 1 2 33 23 14 19 | 29 2 30 1 72 71 22 90 2 17 25 3 30 20 | 29 16 7 14 17 2 10 1 4 8 21 | 25 1 1 4 10 1 1 15 2 6 22 | 22 1 11 2 1 2 14 1 2 23 23 | 1 2 20 3 1 7 1 18 1 6 33 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2023 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 2023 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 10 10 11 10 14 8 16 13 9 8 13 10 9 5 9 1 | 9 4 12 16 13 12 11 14 6 16 15 9 8 12 10 2 | 11 10 13 13 16 16 16 11 10 7 15 8 10 9 10 3 | 9 15 17 12 18 12 10 10 9 9 6 5 9 14 12 4 | 11 15 5 12 5 9 12 5 11 11 7 9 7 13 10 5 | 4 9 11 15 13 6 9 14 14 4 5 10 10 10 6 6 | 13 10 9 10 13 9 11 9 10 8 11 7 11 14 7 7 | 5 11 14 12 20 11 11 15 7 8 4 8 9 9 10 8 | 10 7 8 4 10 10 10 13 10 7 18 5 10 11 9 9 | 11 9 9 9 4 4 10 8 7 6 10 8 5 8 10 | 5 14 10 12 8 10 6 7 5 7 11 10 2 5 11 | 4 9 6 5 6 7 8 5 12 6 3 4 3 12 | 6 8 7 8 6 6 9 4 7 6 7 7 10 7 4 13 | 9 7 7 6 7 13 1 3 10 6 3 6 7 4 9 14 | 9 4 7 6 4 9 8 6 14 9 5 10 5 6 10 15 | 9 5 6 7 6 4 8 6 8 3 8 5 4 5 6 16 | 7 7 5 4 5 7 6 4 9 5 5 3 7 5 6 17 | 5 6 6 6 6 3 8 10 7 4 4 6 6 1 3 18 | 5 4 1 7 7 4 6 4 5 3 4 3 6 6 8 19 | 4 3 6 6 4 4 3 8 7 10 8 7 3 7 6 20 | 6 4 12 8 7 9 2 8 8 8 7 6 6 7 5 21 | 6 9 9 10 12 11 4 5 10 7 8 3 7 7 2 22 | 13 12 8 11 7 9 5 5 8 11 8 8 12 12 8 23 | 7 8 13 10 11 8 8 10 7 4 8 11 8 8 10 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2023 | April 2023 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 6 9 7 7 13 6 9 7 10 6 11 5 10 7 6 1 | 14 5 15 8 13 15 6 10 11 8 10 10 11 10 13 2 | 3 9 7 8 10 10 14 6 10 8 12 11 8 8 12 3 | 7 10 7 15 7 10 9 13 11 14 9 10 9 8 14 4 | 6 9 12 14 5 13 7 10 7 8 14 14 10 9 14 5 | 13 8 7 14 11 17 7 13 10 17 7 15 11 15 7 6 | 14 13 5 12 7 12 14 16 9 16 13 14 6 9 9 7 | 5 10 11 7 7 19 11 10 6 7 12 10 14 10 14 8 | 14 9 4 10 10 12 15 11 15 4 9 11 10 16 12 9 | 11 5 9 10 7 12 8 9 8 10 12 7 10 11 4 10 | 7 8 8 5 14 12 9 5 8 9 7 5 8 11 11 | 6 6 6 10 3 4 7 9 5 6 5 4 7 4 9 12 | 5 5 6 10 5 5 5 13 5 5 5 5 7 8 5 13 | 3 9 4 4 5 7 12 12 4 7 8 4 3 12 14 | 8 6 5 8 2 6 6 4 10 8 8 8 11 11 6 15 | 4 4 6 3 7 8 2 8 10 8 6 5 3 7 9 16 | 3 7 4 6 9 2 8 4 4 9 8 6 8 3 5 17 | 1 2 7 4 6 1 4 4 4 4 8 3 3 5 3 18 | 4 7 5 8 2 4 6 2 5 3 3 5 8 4 4 19 | 3 7 3 7 4 2 4 7 5 3 7 3 2 9 6 20 | 3 6 3 3 11 1 8 4 6 10 7 6 7 9 6 21 | 4 5 6 11 8 14 8 8 7 6 9 8 4 8 6 22 | 7 4 6 7 10 6 15 6 13 10 11 7 16 9 9 23 | 12 11 11 11 8 10 10 12 10 7 9 13 7 11 10 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2023 Note: . 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 2023 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 66 59 49 39 46 42 62 51 58 32 56 30 62 56 38 1 | 45 53 55 44 52 32 65 51 54 31 29 29 61 43 40 2 | 39 49 57 39 32 41 63 47 46 25 31 31 49 55 29 3 | 41 48 37 36 54 36 46 45 56 32 18 20 60 55 45 4 | 26 41 37 35 42 43 29 39 23 39 27 36 40 36 41 5 | 40 40 34 26 44 35 39 49 33 42 35 32 35 56 38 6 | 44 55 35 39 33 35 36 39 35 37 45 30 42 46 26 7 | 34 46 42 48 35 38 43 50 39 42 52 41 64 52 33 8 | 39 44 49 53 47 41 53 48 46 47 55 55 51 47 51 9 | 44 48 43 44 30 45 48 46 54 44 48 45 64 45 39 10 | 41 47 30 44 41 50 46 47 46 49 53 42 72 41 37 11 | 38 48 40 28 47 51 26 45 31 38 55 61 72 39 35 12 | 34 38 42 37 30 44 36 41 33 37 38 61 61 39 28 13 | 28 26 22 27 26 33 33 32 31 35 33 84 42 27 25 14 | 29 25 28 27 29 21 37 38 30 28 28 25 37 20 15 15 | 18 25 23 24 29 21 25 22 26 22 29 21 28 19 18 16 | 22 20 31 27 24 21 13 15 21 20 23 25 23 15 16 17 | 28 27 22 29 22 15 26 19 17 30 24 11 16 19 10 18 | 33 23 26 28 13 25 20 36 19 14 24 31 28 12 10 19 | 21 17 23 26 19 25 23 32 36 36 35 31 38 13 17 20 | 42 28 50 31 24 40 26 38 25 36 53 31 45 24 17 21 | 29 45 31 36 42 37 44 46 35 61 32 21 41 26 23 22 | 51 41 27 44 40 61 59 41 31 43 35 39 56 35 19 23 | 50 44 35 62 40 68 57 57 34 66 37 46 61 40 18 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2023 | April 2023 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 24 42 37 35 35 37 33 42 68 65 56 27 32 33 32 1 | 20 29 37 32 30 30 39 34 62 54 42 25 32 39 52 2 | 18 33 57 31 29 22 36 59 47 37 34 34 23 38 59 3 | 24 32 28 26 31 36 45 62 43 41 39 33 27 49 42 4 | 22 21 29 34 31 38 44 69 56 43 42 32 28 54 49 5 | 21 36 28 30 36 33 33 63 41 40 52 31 30 52 40 6 | 23 33 38 47 39 35 47 50 50 51 47 40 45 53 59 7 | 24 38 54 46 44 48 57 58 44 50 41 39 49 37 62 8 | 22 37 51 39 58 69 47 55 43 58 56 42 61 58 61 9 | 28 32 39 48 36 44 53 54 56 52 44 29 50 39 56 10 | 37 47 40 46 40 42 63 38 67 47 59 54 67 39 51 11 | 34 34 43 48 46 53 45 32 49 37 34 39 53 44 42 12 | 44 27 32 37 41 38 43 44 35 47 40 40 36 37 36 13 | 74 28 17 34 36 34 21 39 36 26 27 32 36 33 35 14 | 28 27 26 28 26 26 26 25 18 29 26 28 25 35 26 15 | 14 13 26 17 29 19 21 18 20 26 28 26 31 26 15 16 | 19 20 22 20 20 15 25 16 21 26 23 23 22 20 23 17 | 24 16 13 30 18 21 26 17 25 31 32 22 23 24 20 18 | 26 23 14 26 13 19 31 17 26 36 19 32 30 29 17 19 | 25 22 22 19 17 14 27 20 37 30 20 32 16 17 24 20 | 20 37 21 21 14 15 28 30 33 37 14 27 30 28 21 21 | 30 61 23 19 22 41 33 25 36 44 28 29 21 35 22 | 40 32 27 33 33 40 43 30 54 33 38 36 24 37 23 | 50 42 32 34 24 36 43 42 70 46 33 32 46 35 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2023 Istvan Tepliczky -------------------------------------------------------------------- Observer: Pierre Terrier Location: Saint-Hippolyte, France (2 33' E, 44 42' N) Frequency: 143.05 MHz Antenna: Colinear 9dbi 144 MHz, elev 0 degr Receiver: Icom PCR 1500 SSB USB Computer: VAIO XP Observing method: HROFFT + Colorgramme RMOB Lab v 3.2 Number of meteors in one hour intervals | April 2023 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 12 14 9 9 7 11 9 13 11 7 11 6 11 11 14 1 | 7 9 12 16 5 9 6 19 10 8 16 12 12 14 16 2 | 11 16 16 9 14 6 8 10 7 13 13 12 14 14 11 3 | 12 8 12 12 13 13 12 13 10 13 6 10 13 13 8 4 | 13 4 14 15 9 12 13 14 16 8 12 10 20 18 18 5 | 6 11 11 14 19 11 6 12 10 6 11 6 18 15 16 6 | 13 14 19 15 12 11 5 14 12 14 17 10 13 19 17 7 | 6 14 12 15 23 19 7 13 19 16 14 18 18 24 24 8 | 22 22 14 18 22 16 19 12 21 16 15 23 12 27 21 9 | 22 15 15 16 21 15 17 24 19 5 14 14 20 16 16 10 | 16 14 21 15 14 10 11 8 5 18 13 16 12 22 7 11 | 13 10 19 13 15 12 20 10 17 10 17 8 15 14 2 12 | 6 14 11 6 12 12 15 6 13 9 15 15 24 16 9 13 | 9 5 6 5 14 7 8 14 16 13 5 7 5 11 1 14 | 4 10 9 1 11 11 5 6 7 6 4 8 6 4 9 15 | 8 7 7 1 7 8 4 5 3 7 3 6 4 12 7 16 | 0 4 3 2 6 4 5 3 5 10 9 9 3 3 7 17 | 7 3 4 1 2 2 1 1 5 4 2 2 8 1 3 18 | 6 2 5 1 1 1 1 3 8 2 0 7 4 6 5 19 | 4 2 1 4 5 7 1 4 4 2 4 4 3 3 3 20 | 1 5 9 5 3 3 6 4 8 5 6 2 4 8 4 21 | 1 0 5 9 3 6 6 12 4 3 4 3 0 3 4 22 | 6 10 7 5 5 5 4 7 7 7 7 3 9 8 7 23 | 8 4 9 9 9 7 4 10 5 8 10 11 6 3 3 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2023 | April 2023 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 8 3 8 8 7 11 7 10 14 12 10 11 5 11 1 | 9 15 16 16 10 8 10 8 13 11 13 10 10 10 2 | 8 14 14 11 13 8 14 14 8 8 15 4 13 13 3 | 16 15 15 19 9 11 16 14 12 18 10 13 8 16 4 | 15 14 17 12 11 6 18 24 18 17 22 18 15 13 5 | 8 7 14 14 13 11 12 20 14 12 15 20 16 6 6 | 15 12 18 19 15 11 12 26 15 24 15 19 17 16 7 | 17 9 24 12 20 13 22 20 22 19 22 14 18 20 8 | 22 13 19 6 23 23 17 26 23 14 11 14 17 21 9 | 14 12 13 17 15 21 20 20 15 11 19 7 17 14 10 | 11 17 17 14 11 17 16 20 16 15 17 12 19 14 11 | 19 14 12 12 12 21 22 25 21 17 8 11 15 11 12 | 17 10 16 12 15 15 16 7 13 13 16 13 20 12 13 | 14 14 11 14 9 17 9 13 13 10 9 13 18 13 14 | 9 12 6 13 6 8 14 13 10 9 9 9 12 12 15 | 5 5 4 8 6 3 10 3 12 6 2 3 5 7 16 | 7 2 2 5 2 4 6 3 3 5 3 9 4 3 17 | 4 2 3 5 3 2 5 5 6 4 4 6 4 4 18 | 8 8 2 3 5 3 1 3 4 3 3 6 2 5 19 | 2 3 4 2 0 3 5 5 3 4 7 2 1 4 20 | 7 7 7 3 5 4 6 3 3 2 4 5 1 4 21 | 6 5 2 6 3 6 5 7 5 5 4 3 8 6 22 | 7 6 3 5 5 8 8 5 5 8 9 7 10 23 | 13 8 9 10 6 6 11 13 8 7 3 7 8 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2023 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 2023 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 1 4 1 0 0 0 4 0 2 3 2 0 0 1 1 1 | 1 0 1 1 0 1 0 1 0 2 2 0 1 0 2 2 | 1 0 1 1 2 0 2 1 0 1 2 1 2 1 1 3 | 1 3 0 5 0 2 2 1 0 3 2 0 2 1 1 4 | 3 2 0 1 0 1 4 3 2 0 2 1 1 3 0 5 | 1 1 2 0 5 2 1 4 2 2 2 2 1 1 1 6 | 2 0 1 0 1 1 1 2 1 1 2 0 3 1 1 7 | 0 1 1 0 3 1 2 3 3 1 1 7 2 1 2 8 | 3 3 0 1 2 0 4 4 3 2 1 1 2 4 0 9 | 1 0 0 2 3 0 1 1 0 2 1 1 3 1 1 10 | 1 3 0 0 2 0 0 1 2 2 1 3 3 0 3 11 | 0 0 2 0 0 1 2 0 0 0 0 0 1 0 1 12 | 0 1 0 0 4 2 1 0 1 2 1 1 3 1 2 13 | 1 1 0 0 1 2 2 0 1 2 0 1 0 0 1 14 | 3 0 0 0 1 0 0 0 1 0 0 0 0 1 0 15 | 2 0 0 0 1 0 0 0 0 0 0 1 0 1 0 16 | 0 0 0 0 1 1 1 0 0 0 0 0 1 0 0 17 | 0 0 1 0 0 0 0 0 0 1 0 2 0 0 0 18 | 0 0 0 1 0 0 0 1 0 0 0 0 0 1 0 19 | 0 0 0 0 1 1 0 0 0 0 1 0 0 0 1 20 | 1 1 0 0 0 0 1 0 1 0 1 1 0 0 0 21 | 0 0 0 2 0 1 2 0 0 0 0 0 0 0 0 22 | 1 0 1 1 0 0 0 1 0 0 1 0 0 0 0 23 | 1 1 0 0 1 1 0 1 2 2 0 2 2 1 1 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2023 | April 2023 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 1 0 1 0 1 1 1 2 2 0 1 0 2 0 2 1 | 1 1 0 0 1 5 2 7 3 0 2 1 3 0 1 2 | 1 1 0 3 1 3 5 9 6 2 4 4 0 2 0 3 | 2 1 1 3 1 4 1 6 4 1 1 3 0 1 2 4 | 2 1 1 1 2 1 10 12 6 1 4 5 3 3 5 5 | 3 3 5 2 4 5 6 10 4 2 2 2 2 7 3 6 | 5 2 4 1 2 2 2 12 1 8 4 1 1 1 2 7 | 1 2 5 1 1 1 5 3 1 6 2 4 2 5 6 8 | 0 1 0 0 3 2 4 3 5 0 3 2 3 5 6 9 | 6 2 1 0 1 3 6 2 4 2 1 2 4 3 3 10 | 1 1 1 1 1 3 3 3 4 3 2 3 1 3 5 11 | 0 1 1 1 0 2 2 0 0 2 0 1 2 0 0 12 | 0 2 2 0 0 0 0 2 0 0 0 1 1 1 2 13 | 2 1 3 1 1 2 1 1 2 0 2 2 1 0 2 14 | 1 0 0 0 1 2 0 0 1 1 0 1 0 0 1 15 | 0 2 0 0 1 0 0 0 0 0 2 2 0 0 0 16 | 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 17 | 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 18 | 1 0 0 0 0 0 1 0 0 0 0 0 0 0 1 19 | 1 2 1 1 0 0 1 1 0 0 0 0 1 1 0 20 | 0 0 1 0 2 1 3 1 2 2 1 0 0 0 0 21 | 0 1 1 1 1 2 6 2 0 0 1 0 0 1 0 22 | 0 0 1 0 0 3 8 1 1 0 0 1 0 2 1 23 | 2 1 1 0 1 1 6 5 0 0 1 2 1 1 1 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2023 Duration >= 10 seconds | April 2023 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 0 0 0 0 0 0 0 0 0 0 0 0 2 | 0 0 0 0 0 0 0 1 0 0 1 1 0 0 0 3 | 0 0 0 2 0 1 0 0 0 1 0 0 0 0 0 4 | 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 5 | 0 0 2 0 2 1 0 1 1 0 1 0 1 1 0 6 | 0 0 1 0 0 0 0 0 0 1 1 0 1 1 0 7 | 0 0 0 0 1 0 0 1 0 0 1 4 0 1 1 8 | 0 0 0 0 1 0 1 0 0 1 0 0 1 0 0 9 | 0 0 0 1 2 0 0 1 0 0 0 1 0 0 0 10 | 0 1 0 0 0 0 0 1 0 1 1 0 1 0 1 11 | 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 12 | 0 0 0 0 1 0 0 0 1 0 1 0 0 0 0 13 | 0 0 0 0 1 1 0 0 1 0 0 1 0 0 0 14 | 0 0 0 0 0 0 0 0 0 0 0 0 0 1 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 1 0 0 0 0 0 18 | 0 0 0 0 0 0 0 1 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 0 0 0 0 0 23 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2023 | April 2023 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 1 | 0 0 0 0 0 0 0 2 2 0 0 0 0 0 0 2 | 0 0 0 0 0 0 0 1 1 0 0 1 0 1 0 3 | 1 0 1 0 0 1 0 2 1 0 0 0 0 0 1 4 | 0 1 1 1 2 0 1 8 4 0 0 2 0 1 1 5 | 0 1 0 0 1 2 2 5 1 0 0 0 0 2 0 6 | 0 0 1 1 0 0 0 5 1 1 0 0 0 0 0 7 | 1 2 2 0 0 0 0 0 0 2 0 0 1 0 1 8 | 0 0 0 0 0 2 0 0 2 0 0 1 0 2 1 9 | 2 0 0 0 1 0 1 2 2 0 1 0 0 0 0 10 | 0 0 0 0 0 1 1 0 0 1 0 1 0 1 0 11 | 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 12 | 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 13 | 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 14 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 15 | 0 0 0 0 0 0 0 0 0 0 0 0 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 0 0 0 0 0 20 | 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 21 | 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 22 | 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 23 | 0 0 0 0 0 0 2 1 0 0 0 0 0 0 1 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2023 Note: . increased noise since June 12, 2019, normally not affecting the long duration counts. . the Lyrids were remarkable in the over dense counts, but less in the long (> 1 minute) ones. 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 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/ 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 (RMOB2304) 6 May 2023 --