Radio Meteor Observation Bulletin No. 345 www.rmob.org April 2022 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 2022 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h|159 160 175 150 157 160 181 159 147 154 174 169 156 170 169 1 |177 177 164 182 180 179 166 182 193 192 194 190 190 186 202 2 |182 187 201 197 209 182 184 192 173 174 193 176 210 170 192 3 |156 165 180 173 176 170 165 157 184 154 159 158 167 155 165 4 |146 167 152 162 145 156 150 152 177 154 156 162 156 161 162 5 |153 153 152 159 155 143 146 137 139 143 145 145 135 153 162 6 |135 146 159 147 129 146 163 138 153 140 139 168 157 174 152 7 |150 124 133 134 141 124 154 141 144 152 154 156 141 136 142 8 |130 136 140 156 140 129 176 159 163 127 146 134 187 162 158 9 |139 156 120 151 153 134 144 156 132 147 130 152 136 152 139 10 |133 162 102 146 134 126 153 133 138 140 139 142 149 137 129 11 |125 127 124 136 127 118 129 120 144 138 116 133 154 140 143 12 |105 115 113 121 140 101 107 133 124 124 109 115 120 107 110 13 |110 97 108 110 97 87 103 114 135 94 90 111 118 101 106 14 |124 84 88 93 89 80 89 90 128 64 88 91 98 95 88 15 | 89 61 79 85 74 65 74 67 76 76 65 79 75 81 91 16 | 58 46 40 51 59 50 71 75 69 69 52 67 67 60 64 17 | 52 42 62 58 50 55 47 47 56 37 48 67 49 49 54 18 | 33 31 47 47 46 36 60 54 53 49 41 47 46 50 51 19 | 40 48 45 60 44 63 59 57 48 41 44 58 48 59 61 20 | 48 52 65 63 49 86 67 67 70 60 69 77 58 85 77 21 | 74 81 73 85 84 92 89 83 89 83 81 109 83 83 109 22 |108 97 108 117 120 95 114 137 100 129 128 120 102 123 124 23 |137 111 118 126 125 142 125 135 155 135 133 116 137 117 138 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2022 | April 2022 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h|160 166 160 164 160 178 178 194 167 173 161 185 157 204 169 1 |175 162 201 167 173 191 213 213 181 196 179 196 171 186 169 2 |196 189 181 188 178 178 186 194 175 195 175 183 177 154 203 3 |180 155 138 165 179 175 169 171 167 193 154 151 154 168 156 4 |141 146 169 150 138 155 174 177 187 158 161 177 157 173 166 5 |150 157 152 160 159 168 178 174 170 163 168 172 184 181 165 6 |139 132 164 151 175 156 165 181 189 165 192 185 160 163 173 7 |148 164 150 165 160 148 153 167 158 193 170 165 185 184 183 8 |175 150 149 156 174 167 153 198 176 189 149 186 159 176 183 9 |134 166 145 152 157 158 167 88 154 163 167 170 190 178 169 10 |143 145 142 147 129 146 135 150 143 156 147 144 171 167 156 11 |140 132 127 128 120 139 135 131 137 158 150 138 164 170 135 12 |109 120 139 125 122 152 122 136 132 118 141 158 131 128 141 13 |135 112 119 98 108 136 133 128 132 112 118 128 145 129 144 14 |128 110 87 100 105 112 106 108 115 101 108 100 115 105 104 15 | 94 96 82 87 97 105 82 83 95 88 82 88 109 87 88 16 | 75 78 59 66 63 64 69 77 53 75 75 61 75 71 74 17 | 64 54 71 53 61 57 50 49 47 57 118 67 71 73 51 18 | 62 49 45 46 55 53 52 63 50 59 61 68 47 59 57 19 | 52 73 45 67 42 48 47 64 61 46 48 46 40 52 49 20 | 68 80 76 60 63 67 74 83 70 75 77 85 54 82 80 21 |108 90 72 79 90 102 106 86 103 104 108 106 115 114 110 22 |126 113 100 112 108 149 144 119 146 149 144 121 147 114 113 23 |136 133 144 156 172 179 183 166 156 179 160 160 157 125 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2022 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 2022 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 0 3 4 2 1 2 3 2 1 6 6 1 1 | 0 2 4 4 1 3 2 9 3 9 4 2 | 1 1 3 1 1 1 6 7 1 6 3 | 0 3 2 1 2 7 3 4 3 10 4 | 1 2 2 5 1 4 6 2 1 9 5 | 1 1 6 7 5 4 1 1 1 7 6 | 4 1 10 3 3 6 6 1 5 12 7 | 1 7 11 1 6 7 5 8 5 9 8 | 8 6 6 1 11 2 8 19 8 20 9 | 10 8 8 12 16 6 9 18 12 3 18 10 | 7 7 13 12 9 9 17 17 14 17 15 11 | 5 8 13 3 7 20 2 10 29 15 15 12 | 10 6 13 21 8 17 20 27 11 34 23 13 | 5 16 6 23 9 23 3 17 17 22 19 14 | 8 29 12 11 6 10 2 5 29 14 47 15 | 14 19 17 20 9 9 7 3 15 13 55 16 | 11 6 20 18 11 9 16 22 47 22 40 17 | 9 14 18 19 7 11 4 40 15 23 22 18 | 7 7 11 14 9 11 29 16 15 16 17 19 | 15 12 11 25 14 7 17 32 7 26 30 20 | 12 8 10 16 12 14 17 11 12 10 23 21 | 4 12 4 14 12 21 4 16 10 10 12 22 | 7 6 5 9 9 13 6 6 12 12 7 23 | 1 2 3 6 4 4 2 1 6 5 1 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2022 | April 2022 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 1 2 7 4 11 4 2 10 2 2 1 1 4 1 | 9 5 1 1 11 1 2 17 3 3 2 1 5 2 | 5 2 14 6 5 1 3 3 3 2 2 2 6 3 | 3 6 4 2 11 5 5 3 1 1 11 6 3 4 | 8 3 10 3 39 6 3 3 4 9 4 6 3 5 | 7 4 6 8 20 13 3 4 9 6 3 3 1 6 | 9 6 7 7 23 41 7 7 3 3 4 5 8 7 | 11 20 15 3 40 21 13 7 5 7 11 11 8 8 | 7 19 7 11 14 13 10 11 14 22 5 9 14 9 | 25 9 11 13 21 22 11 12 19 24 12 16 13 10 | 19 5 16 18 17 12 13 27 16 14 16 16 15 11 | 20 20 17 18 18 18 16 17 17 28 22 22 18 12 | 18 18 21 13 26 30 10 19 17 14 14 23 23 13 | 19 32 15 15 51 8 39 17 13 18 20 24 27 14 | 32 34 19 11 27 13 22 23 11 25 25 19 15 | 44 29 22 12 39 19 22 30 28 15 29 63 34 16 | 16 13 23 15 20 17 20 8 16 8 13 26 21 17 | 18 24 12 14 6 11 9 15 24 58 15 24 24 18 | 18 31 22 17 1 17 38 21 15 17 12 19 22 19 | 24 40 21 40 4 21 31 20 24 22 19 22 22 20 | 40 35 26 27 13 17 27 29 14 21 22 19 31 21 | 29 17 18 16 19 19 19 13 20 28 15 22 14 22 | 13 13 9 11 14 9 21 14 13 11 6 8 7 23 | 2 10 3 14 3 5 1 5 6 9 6 3 1 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2022 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 2022 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 94 101 85 99 92 78 82 75 90 91 85 81 65 85 53 1 |126 123 112 109 115 73 104 85 121 126 121 80 75 80 74 2 |120 108 110 110 113 107 95 86 118 120 89 102 78 75 67 3 | 87 105 123 120 106 94 83 75 108 132 51 56 55 59 55 4 | 45 101 89 91 90 71 102 74 104 103 36 43 35 43 33 5 | 28 103 93 87 71 72 80 67 106 93 36 37 36 40 46 6 | 43 66 81 86 79 63 80 76 102 90 33 35 31 40 48 7 | 40 84 81 87 90 74 72 72 88 119 36 55 41 26 41 8 | 33 86 92 108 88 100 94 92 116 101 36 39 51 20 34 9 | 33 105 100 95 80 79 86 84 100 83 44 41 39 32 13 10 | 26 87 98 108 92 86 96 92 92 81 48 46 48 36 24 11 | 28 99 87 114 90 104 85 87 96 101 33 44 34 42 50 12 | 75 80 104 119 93 92 114 113 102 110 46 41 44 41 42 13 | 88 86 114 102 125 87 79 108 117 91 102 65 60 28 66 14 | 92 45 98 80 69 88 54 69 69 79 106 62 81 63 66 15 | 55 58 38 53 48 44 48 52 67 54 73 54 43 61 49 16 | 36 33 36 34 37 37 29 46 49 47 45 53 31 35 26 17 | 21 38 18 29 42 34 27 36 42 30 57 30 24 23 32 18 | 27 22 25 34 20 35 19 24 44 29 17 54 21 25 14 19 | 26 25 22 29 41 22 24 15 28 44 13 18 19 14 12 20 | 29 32 32 29 31 23 25 30 26 36 13 33 15 11 18 21 | 54 47 35 47 43 42 35 44 55 48 36 45 18 23 17 22 | 71 38 50 57 56 50 50 71 76 50 59 56 27 44 30 23 | 75 83 70 74 56 61 61 81 89 58 81 48 59 54 35 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2022 | April 2022 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 36 78 44 64 67 74 133 105 64 96 78 77 90 86 93 1 | 36 69 39 66 78 83 145 105 47 81 105 90 88 80 83 2 | 31 92 56 70 80 86 145 117 56 92 98 88 76 71 91 3 | 42 65 67 86 75 104 153 88 96 95 70 85 81 68 84 4 | 60 59 65 56 76 108 133 101 129 92 50 96 104 74 75 5 | 63 64 57 73 69 120 133 81 98 91 37 92 105 81 82 6 | 60 52 82 66 60 101 122 107 99 95 50 99 85 76 89 7 | 74 67 72 76 66 127 133 98 114 119 42 103 101 86 107 8 | 84 50 83 77 79 128 143 108 106 87 45 97 94 76 95 9 | 83 66 81 74 68 122 143 92 110 109 55 98 89 94 105 10 | 77 84 93 72 88 109 140 100 99 115 43 105 88 82 139 11 | 83 113 76 84 94 109 140 114 129 114 44 108 128 73 103 12 | 74 93 80 91 99 99 104 99 158 96 56 118 97 99 113 13 | 71 78 94 73 120 103 130 134 156 138 108 104 88 79 102 14 |115 88 64 71 53 91 103 82 78 72 77 78 75 106 46 15 | 48 51 37 15 47 72 49 54 55 41 61 77 52 68 54 16 | 43 50 40 22 33 46 35 28 42 51 37 36 30 40 54 17 | 24 23 23 19 23 37 28 29 50 45 36 37 62 41 84 18 | 15 18 32 18 35 44 14 29 38 18 36 26 24 19 20 19 | 12 18 21 23 24 40 24 43 30 17 33 25 31 33 26 20 | 14 17 11 25 25 52 18 26 41 33 27 34 27 28 34 21 | 21 13 26 34 35 56 46 25 43 46 45 44 39 55 49 22 | 36 22 46 38 52 95 62 37 42 52 52 62 57 46 50 23 | 65 25 58 66 68 116 84 37 59 84 66 82 61 72 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2022 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 2022 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 11h| 14 34 - 60 12 35 8 16 44 35 20 - 50 30 32 12 | 22 40 32 42 25 30 30 14 40 28 - - 48 32 30 13 | 30 35 34 42 50 27 28 26 35 28 - - 40 - 37 14 | - - 33 41 20 - 25 - - - - - 32 - - 15 | - 36 - - - - - - - - - - - - - ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2022 | April 2022 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 11h| 20 52 25 22 25 - 42 40 18 30 - - - - - 12 | 30 55 37 24 26 - 34 50 17 50 - - - - - 13 | 8 62 38 31 22 - 50 35 34 - - - - - - 14 | - 60 32 36 - - 44 70 23 - - - - - - 15 | - - - - - - 38 60 - - - - - - - ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2022 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 2022 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 10 3 12 2 6 3 2 4 5 0 0 3 0 9 12 1 | 7 9 6 4 5 3 5 2 2 0 0 7 1 4 5 2 | 14 10 10 2 11 5 4 2 1 0 0 4 0 5 0 3 | 12 6 6 4 3 2 1 0 3 0 0 5 6 3 10 4 | 21 7 5 1 1 0 1 0 5 1 0 2 7 0 3 5 | 17 6 5 1 3 3 2 1 5 1 0 0 6 0 0 6 | 7 4 3 0 3 1 2 0 0 4 0 1 4 2 4 7 | 3 2 5 0 1 3 6 2 1 0 0 1 11 4 3 8 | 7 3 3 3 4 0 4 4 1 1 0 0 6 1 1 9 | 4 3 2 1 0 1 4 3 0 1 1 2 5 1 1 10 | 4 2 1 1 3 1 4 2 1 0 0 0 9 0 0 11 | 5 2 1 1 7 1 8 1 0 0 3 1 6 3 0 12 | 9 1 2 4 0 3 10 4 0 2 1 0 6 1 0 13 | 7 3 4 4 5 0 13 0 1 1 2 0 6 1 0 14 | 5 4 1 2 4 0 11 4 0 0 0 0 2 7 0 15 | 3 2 1 3 0 4 6 3 1 1 1 0 2 11 0 16 | 2 1 2 4 1 2 11 1 0 0 2 0 4 7 0 17 | 3 2 0 3 1 1 5 2 0 1 3 0 4 6 0 18 | 2 1 2 2 1 1 1 2 0 2 1 0 5 2 0 19 | 2 3 1 0 0 1 3 2 1 2 4 0 5 2 0 20 | 2 5 2 1 2 2 3 1 0 1 2 0 4 0 0 21 | 3 1 2 2 3 4 7 0 0 0 3 0 3 2 0 22 | 3 9 3 4 2 0 3 2 0 0 0 0 8 5 0 23 | 5 17 5 6 3 1 6 2 0 0 3 0 12 8 0 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2022 | April 2022 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 0 14 9 10 6 13 14 10 13 13 6 12 6 1 | 6 8 9 6 9 13 14 11 8 9 8 11 10 2 | 5 1 10 11 9 11 8 8 9 7 16 12 17 3 | 2 0 5 11 8 4 13 9 6 8 7 17 11 4 | 6 0 7 7 6 4 12 5 6 9 12 13 14 5 | 2 0 3 11 6 5 9 5 8 12 8 8 7 6 | 0 0 4 4 3 6 8 5 4 9 6 3 10 7 | 0 0 7 4 4 4 5 3 11 6 9 3 8 | 0 0 4 6 1 7 6 2 4 7 14 8 9 | 0 1 2 6 1 5 17 6 4 7 11 10 10 | 0 0 4 1 3 6 6 5 3 4 8 3 11 | 2 0 7 1 7 7 9 3 2 4 3 5 12 | 0 1 2 3 2 3 11 5 3 4 3 12 13 | 0 4 0 6 4 7 10 4 5 4 5 2 14 | 0 0 2 2 10 2 7 4 5 0 3 6 15 | 0 0 2 2 8 1 5 4 1 4 4 6 16 | 0 0 2 2 3 3 7 7 2 4 2 2 17 | 0 0 4 7 4 7 5 2 2 1 5 0 18 | 1 2 2 0 3 2 1 3 3 1 1 5 4 19 | 0 1 1 2 3 4 4 4 4 2 4 4 2 20 | 1 3 1 2 5 0 0 1 7 8 3 1 2 21 | 0 4 6 6 2 4 6 8 4 4 4 4 3 22 | 0 4 7 3 5 9 8 9 8 11 1 8 4 23 | 6 6 7 9 12 12 10 14 6 4 9 8 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2022 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 2022 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 0 3 1 0 1 6 1 0 2 0 1 2 1 0 4 1 | 1 2 3 1 4 4 0 2 5 2 1 0 1 1 6 2 | 2 2 1 1 1 2 3 0 4 5 2 0 0 0 2 3 | 0 0 0 3 3 2 0 2 2 1 2 1 1 1 1 4 | 0 1 0 1 1 2 3 4 3 6 2 2 3 0 5 5 | 0 0 0 1 1 1 2 1 1 1 2 0 0 2 2 6 | 0 1 0 0 3 1 1 3 3 2 3 0 2 2 5 7 | 1 1 1 2 2 4 3 1 1 2 3 0 0 4 3 8 | 1 1 1 1 4 3 3 2 0 0 1 0 0 1 1 9 | 1 1 1 0 3 3 1 0 3 0 2 1 0 2 0 10 | 1 1 1 0 2 0 3 0 1 1 0 0 1 1 1 11 | 0 0 0 0 1 0 2 2 1 0 0 0 0 2 1 12 | 1 0 0 0 1 0 1 2 0 1 1 0 0 0 2 13 | 1 0 1 0 3 1 1 1 0 2 0 1 1 1 0 14 | 1 1 1 0 2 0 0 1 0 0 0 0 2 1 2 15 | 0 1 1 2 1 1 0 0 2 0 1 0 1 1 1 16 | 1 1 0 1 2 1 1 0 0 0 0 1 3 1 1 17 | 0 1 0 0 0 0 0 2 0 0 1 0 2 0 0 18 | 0 0 2 1 1 0 0 1 0 1 0 0 2 0 0 19 | 1 1 0 0 0 1 2 0 1 0 0 0 1 0 2 20 | 3 1 3 1 1 1 1 0 2 1 1 0 4 4 2 21 | 1 1 0 3 1 0 1 3 1 3 2 2 1 3 1 22 | 2 2 1 3 1 2 0 1 0 2 1 0 0 2 0 23 | 3 1 2 2 1 1 2 3 2 3 0 2 1 3 3 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2022 | April 2022 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 1 0 1 2 1 1 3 0 2 2 1 0 1 1 2 1 | 1 0 1 5 0 0 2 3 2 2 0 0 1 1 1 2 | 2 0 0 2 2 0 2 1 1 2 1 1 1 1 1 3 | 2 1 2 2 1 4 3 1 0 1 2 0 1 0 2 4 | 1 0 1 3 1 2 5 1 1 2 0 1 0 1 0 5 | 2 4 1 1 0 0 2 1 2 2 5 0 2 1 1 6 | 1 4 4 1 1 2 0 0 0 1 3 2 1 2 1 7 | 3 1 1 0 1 2 3 1 0 1 0 0 1 0 0 8 | 2 2 0 2 2 1 0 1 1 2 1 1 0 2 0 9 | 2 0 1 1 0 3 1 2 1 2 0 0 0 0 1 10 | 0 0 0 0 0 1 1 0 0 1 1 0 2 0 0 11 | 1 3 1 0 1 1 1 0 2 1 1 1 0 0 0 12 | 2 0 1 0 0 1 0 0 0 1 0 1 0 0 1 13 | 0 1 1 0 2 1 0 0 0 0 0 0 0 2 0 14 | 1 0 1 1 0 1 0 1 0 0 0 0 0 0 1 15 | 0 0 0 0 1 1 0 0 1 0 0 0 1 1 0 16 | 2 1 0 1 2 1 0 0 0 0 0 0 2 0 1 17 | 1 1 1 1 0 0 0 0 0 0 0 0 3 0 0 18 | 0 1 0 1 1 0 0 1 0 0 0 0 0 0 1 19 | 1 1 0 1 0 1 1 0 1 1 1 0 1 0 0 20 | 2 0 0 2 0 0 1 1 0 0 2 0 0 0 0 21 | 1 2 2 1 1 1 1 0 2 1 1 1 0 0 1 22 | 1 2 2 1 2 4 3 2 1 2 1 0 0 0 1 23 | 0 0 3 0 1 2 1 1 2 2 0 1 0 1 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2022 Jochen Plessmann -------------------------------------------------------------------- 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 2022 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 3 2 6 2 11 9 6 2 6 3 4 2 4 2 8 1 | 5 3 2 4 3 4 4 4 4 2 3 5 2 8 4 2 | 4 4 6 5 3 7 2 3 3 8 2 4 1 8 5 3 | 6 7 4 11 3 9 3 6 4 7 7 11 2 8 10 4 | 8 12 9 10 18 10 9 8 8 16 13 15 10 12 13 5 | 25 12 11 36 20 16 10 17 14 23 18 23 20 17 18 6 | 37 18 10 29 22 27 16 21 12 30 22 33 43 28 24 7 | 25 17 18 34 19 27 28 20 24 25 22 27 36 44 32 8 | 35 29 26 36 39 38 34 22 28 25 28 43 42 40 26 9 | 42 33 24 35 40 38 31 33 35 34 40 48 60 36 43 10 | 39 41 34 43 45 59 34 28 47 26 27 58 58 56 44 11 | 49 37 33 42 51 39 39 44 41 36 48 47 45 51 52 12 | 47 37 33 36 30 26 15 34 28 48 46 39 32 30 37 13 | 31 29 34 28 51 18 36 28 39 35 30 34 35 29 46 14 | 26 27 25 31 34 22 22 16 25 28 33 35 32 22 56 15 | 26 27 33 35 38 42 38 34 29 30 40 58 33 24 49 16 | 35 16 29 40 50 42 47 48 31 36 42 47 44 40 57 17 | 23 23 30 31 31 29 33 40 40 35 43 53 51 27 57 18 | 35 17 19 18 37 25 36 35 43 17 45 35 48 32 31 19 | 30 15 37 34 30 44 36 35 50 31 40 32 50 31 31 20 | 17 17 30 18 25 30 30 33 31 26 37 19 44 34 41 21 | 6 16 21 8 13 25 29 15 31 16 38 22 32 25 22 | 13 8 14 4 7 7 15 14 18 21 20 9 10 17 14 23 | 4 5 8 7 6 5 9 7 8 4 9 4 4 8 10 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2022 | April 2022 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 4 2 6 3 8 4 3 2 3 6 1 6 6 4 11 1 | 6 1 4 2 10 3 2 4 4 3 3 1 5 4 10 2 | 7 4 6 3 1 2 1 2 4 2 2 3 3 5 6 3 | 9 6 2 8 11 7 5 10 5 12 7 8 4 12 16 4 | 14 9 16 12 13 6 20 15 15 7 12 11 15 11 11 5 | 17 8 9 14 24 16 23 23 30 18 18 15 19 16 24 6 | 14 20 7 19 31 21 29 47 24 26 26 23 25 29 19 7 | 14 30 13 30 30 30 35 41 23 32 35 35 27 16 24 8 | 26 25 17 32 35 29 36 49 24 26 37 37 33 32 28 9 | 43 29 20 38 28 43 44 46 46 38 45 43 31 25 29 10 | 28 37 29 48 35 42 56 44 53 27 57 79 43 38 43 11 | 41 27 26 61 50 44 57 30 56 48 39 47 40 47 51 12 | 33 21 30 56 38 48 51 50 52 45 41 35 49 39 43 13 | 30 17 12 33 26 24 55 51 41 34 27 27 37 34 32 14 | 34 22 25 40 34 21 40 25 32 35 38 28 35 32 41 15 | 30 32 34 31 44 21 19 38 54 46 39 25 39 51 42 16 | 36 32 17 31 25 21 29 50 54 36 44 31 38 34 43 17 | 29 47 16 27 18 12 37 44 47 38 38 21 42 27 39 18 | 28 39 25 18 18 18 19 45 30 32 37 16 33 32 29 19 | 44 36 26 18 26 16 23 42 44 45 36 29 39 39 32 20 | 32 47 25 26 7 23 23 40 33 36 30 25 27 39 27 21 | 22 17 15 13 13 9 15 26 11 15 18 17 20 32 18 22 | 10 18 5 14 12 8 10 19 15 12 16 10 10 16 11 23 | 6 9 3 13 8 4 10 8 11 8 8 3 7 8 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2022 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 2022 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 3 4 7 7 5 6 9 10 9 9 11 6 8 9 1 | 7 5 6 5 8 5 8 10 13 8 9 9 12 6 2 | 3 6 6 2 7 16 3 5 7 10 5 5 6 12 3 | 8 6 5 3 4 10 7 10 20 8 8 10 10 7 4 | 15 4 13 5 9 13 2 11 17 7 7 3 13 5 5 | 8 5 8 5 3 9 6 5 2 6 4 7 8 1 6 | 6 4 4 2 4 7 6 4 3 7 3 7 4 7 7 | 2 4 7 0 0 5 2 3 5 8 9 3 6 5 8 | 7 6 4 0 2 6 6 6 5 4 3 7 2 1 9 | 6 4 5 1 1 6 5 5 8 3 8 2 4 3 10 | 3 4 2 2 5 2 0 4 4 3 13 4 5 5 11 | 4 5 3 3 4 5 6 3 6 6 6 3 5 5 12 | 10 5 5 0 4 2 7 8 6 4 6 12 7 9 13 | 7 4 3 4 8 7 11 3 5 7 8 9 9 6 14 | 10 4 3 0 7 8 9 12 6 9 2 9 4 6 15 | 6 6 11 5 11 11 8 12 10 7 10 7 12 6 16 | 10 10 7 5 5 7 7 9 7 15 11 4 10 17 | 10 8 9 3 16 10 10 13 9 17 8 7 13 7 18 | 6 13 15 8 15 9 10 12 13 12 14 6 14 19 | 11 10 13 15 7 6 8 6 19 8 4 13 8 10 20 | 8 9 8 8 10 14 6 19 14 10 10 11 9 3 21 | 5 11 7 7 7 13 9 9 16 8 5 8 12 5 22 | 7 15 7 3 10 10 6 5 11 10 5 7 10 4 23 | 6 11 4 4 9 8 4 9 4 7 7 7 11 7 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2022 | April 2022 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 3 5 5 11 6 9 14 10 1 12 13 4 12 10 9 1 | 11 8 6 8 6 8 15 13 11 12 10 11 13 4 11 2 | 5 6 8 11 3 9 10 8 8 8 7 8 7 12 13 3 | 6 8 8 6 7 11 14 10 9 8 7 11 4 4 11 4 | 8 2 1 7 6 9 8 5 6 6 5 8 6 18 11 5 | 9 8 6 6 6 7 5 7 11 5 11 6 5 5 4 6 | 3 3 2 7 4 6 6 4 8 4 9 4 4 4 5 7 | 2 7 1 3 3 4 6 4 6 5 8 3 5 3 5 8 | 2 2 3 3 3 6 3 4 4 2 4 6 7 6 5 9 | 3 1 0 1 2 2 4 1 7 5 6 0 5 6 10 | 5 3 1 6 1 8 2 3 3 9 3 8 4 1 7 11 | 4 4 1 6 3 2 4 5 7 6 6 3 3 4 7 12 | 5 10 3 4 9 8 9 5 5 6 7 6 5 6 8 13 | 5 6 7 5 9 4 12 10 4 10 9 13 5 3 3 14 | 6 7 9 5 11 8 11 10 8 6 11 11 9 7 14 15 | 9 15 7 15 11 8 18 16 12 6 13 7 8 17 15 16 | 12 16 8 22 10 15 17 9 9 13 13 6 7 14 11 17 | 11 15 9 9 10 10 15 10 14 15 13 11 12 11 9 18 | 5 16 12 8 10 10 18 4 4 17 16 6 10 7 18 19 | 9 13 7 8 9 14 18 11 13 17 13 12 16 9 11 20 | 11 13 9 12 9 12 11 6 15 15 17 13 11 4 8 21 | 12 8 6 10 5 13 12 6 13 11 9 7 16 7 12 22 | 13 5 7 9 9 10 8 5 6 10 8 19 5 9 6 23 | 10 11 5 2 6 11 16 8 8 11 7 11 8 6 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2022 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 2022 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 15 12 14 16 9 17 13 16 20 15 18 22 12 19 19 1 | 23 10 8 17 16 15 16 15 26 8 13 24 17 22 15 2 | 10 8 9 13 14 19 14 12 15 18 8 19 15 17 30 3 | 15 11 11 11 9 10 15 15 18 39 11 12 15 21 17 4 | 14 8 18 17 20 13 13 12 16 18 9 13 16 18 12 5 | 16 8 8 14 7 10 11 9 18 10 5 8 11 11 12 6 | 9 11 6 3 5 8 12 7 11 9 3 10 7 10 7 7 | 5 6 8 4 5 6 5 5 11 7 12 4 5 9 12 8 | 11 10 4 4 4 6 9 7 8 5 4 6 1 4 7 9 | 8 8 3 4 8 8 3 11 3 6 2 7 5 6 10 | 8 8 3 5 1 5 5 6 3 9 7 3 9 8 11 | 6 5 10 7 8 6 5 8 9 6 12 3 12 | 10 7 7 9 6 9 11 9 6 0 19 6 11 5 13 | 11 7 15 13 12 16 8 16 12 6 11 16 16 15 14 | 13 9 13 18 12 22 19 15 12 4 18 18 21 17 15 | 12 11 23 16 24 24 39 26 27 11 12 16 23 19 15 16 | 17 19 22 21 21 21 30 21 16 30 18 23 26 29 21 17 | 12 16 26 12 24 26 26 28 32 24 10 29 29 22 22 18 | 15 22 27 26 27 20 24 25 28 37 16 21 16 27 28 19 | 17 14 22 18 20 17 26 25 32 24 11 21 23 23 29 20 | 19 13 20 24 22 25 25 25 29 27 18 20 24 17 32 21 | 16 20 15 22 18 20 14 20 18 10 12 8 15 16 28 22 | 18 14 15 15 22 12 17 18 14 12 11 12 16 15 19 23 | 15 17 13 14 11 17 24 11 14 17 17 20 15 19 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2022 | April 2022 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 13 14 9 11 15 28 20 26 17 22 19 21 15 23 17 1 | 19 14 18 11 17 22 27 26 23 20 17 24 28 13 2 | 12 12 16 13 16 18 16 20 26 21 14 19 13 18 25 3 | 12 11 19 11 12 18 20 18 30 21 16 22 19 15 22 4 | 14 8 8 8 11 13 13 19 18 13 12 23 21 14 15 5 | 13 9 17 6 22 13 13 19 23 15 11 17 18 20 10 6 | 7 6 8 7 7 9 9 9 13 10 11 5 9 14 8 7 | 7 6 8 5 7 8 10 7 10 6 7 7 8 11 9 8 | 4 5 8 5 6 10 7 6 4 7 3 6 10 15 11 9 | 3 5 3 2 7 6 6 4 9 5 7 5 12 6 10 | 11 3 9 3 11 4 5 7 4 7 5 8 3 10 11 | 6 5 9 6 4 10 10 12 7 9 4 4 10 11 12 | 8 7 10 10 13 11 8 12 13 13 11 8 11 10 13 | 11 12 8 10 13 8 21 19 17 14 15 20 15 13 10 14 | 11 23 20 18 17 11 27 22 25 18 20 20 23 19 16 15 | 14 33 31 28 23 26 29 29 28 20 37 16 17 18 19 16 | 20 32 18 27 21 33 36 24 23 27 28 22 23 26 24 17 | 26 31 21 25 21 31 40 22 31 28 29 23 29 32 33 18 | 14 30 25 26 20 34 37 24 30 24 30 17 19 19 29 19 | 15 31 16 25 17 41 38 21 26 23 27 27 29 26 31 20 | 24 15 20 35 23 37 33 21 27 22 26 20 23 20 30 21 | 15 19 21 20 30 29 23 13 24 12 19 17 24 15 18 22 | 19 11 18 20 20 24 15 16 18 12 20 17 15 17 15 23 | 17 17 15 21 23 24 28 17 11 12 23 16 12 15 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2022 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 2022 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 28 37 37 33 38 28 29 35 44 30 25 29 39 23 24 1 | 42 42 35 44 48 41 38 34 35 56 43 33 33 39 38 2 | 63 56 68 67 74 58 58 61 49 51 34 44 57 52 54 3 | 90 84 69 72 74 73 82 79 76 88 55 63 60 67 65 4 |117 98 95 114 119 109 105 106 100 91 71 75 83 93 84 5 |151 117 138 131 132 122 132 126 153 142 112 101 104 95 116 6 |152 144 122 157 123 125 135 143 157 128 130 108 117 130 108 7 |153 160 161 168 174 155 179 157 165 168 141 138 147 128 129 8 |147 138 111 186 129 143 147 164 154 156 154 125 118 107 125 9 |187 158 145 177 142 194 170 213 200 170 152 187 154 143 135 10 |206 144 165 177 162 181 191 169 178 196 146 169 154 155 149 11 |190 154 173 160 159 166 172 185 175 193 163 202 168 174 167 12 |206 203 179 155 183 189 182 191 197 173 168 178 198 170 160 13 |181 160 161 188 192 170 178 191 190 195 128 148 158 134 163 14 |173 130 187 199 203 169 185 214 201 193 147 167 162 169 153 15 |171 134 164 162 165 127 178 182 160 194 141 134 160 150 160 16 |156 160 134 162 146 140 172 130 128 156 155 136 132 143 128 17 |128 105 131 137 145 136 146 141 120 135 119 112 137 108 138 18 | 92 82 86 106 94 67 81 82 86 103 90 61 61 71 85 19 | 49 62 53 52 33 50 53 50 48 56 44 49 62 49 49 20 | 41 42 27 35 35 40 49 26 30 28 32 34 26 54 41 21 | 33 28 27 21 26 29 26 36 26 26 20 28 30 26 23 22 | 21 31 28 30 29 27 24 26 22 24 27 23 28 18 34 23 | 32 24 20 23 24 32 29 25 22 25 29 28 23 25 31 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2022 | April 2022 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 27 29 30 29 23 21 23 40 31 38 21 27 27 27 34 1 | 52 30 36 29 32 37 32 34 36 39 37 41 29 44 2 | 46 60 55 43 44 52 49 44 57 44 40 40 49 46 3 | 66 78 61 63 58 80 77 98 84 51 62 51 59 79 4 |102 79 67 85 83 103 92 131 92 67 72 76 76 87 5 |121 128 125 83 87 112 127 146 141 109 114 87 91 97 6 |138 170 142 106 144 139 161 177 169 147 136 106 105 143 7 |136 175 179 154 158 158 183 173 168 163 147 92 106 171 8 |133 156 183 110 113 138 125 180 159 155 120 95 99 146 9 |165 168 188 180 138 176 185 178 166 153 169 141 128 169 10 |161 192 198 183 153 170 192 195 198 193 210 222 185 207 11 |209 213 204 175 143 184 228 203 208 234 257 211 235 208 243 12 |212 181 218 204 156 204 240 263 183 245 389 213 230 229 271 13 |184 188 190 145 167 167 228 232 203 205 374 206 214 237 256 14 |165 205 153 183 153 168 188 191 238 191 322 175 219 222 199 15 |159 150 158 142 177 185 219 159 185 193 281 176 169 208 159 16 |137 125 157 142 151 159 193 170 158 164 191 180 126 191 150 17 |127 111 106 124 106 112 137 148 132 140 136 126 94 106 101 18 | 87 77 65 71 64 52 82 96 92 70 0 90 45 59 63 19 | 49 46 37 47 39 29 52 50 58 58 0 61 38 62 49 20 | 34 23 38 39 41 26 36 41 44 39 0 42 35 48 28 21 | 22 16 26 24 31 26 29 44 29 26 0 31 28 39 30 22 | 17 37 28 16 25 22 26 25 27 35 0 23 15 31 17 23 | 29 31 17 24 22 28 29 34 32 23 0 34 34 26 30 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2022 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 2022 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 2 6 5 4 2 3 13 7 6 7 6 12 15 14 1 | 7 7 3 6 4 1 4 7 4 8 7 8 6 17 9 2 | 3 5 5 3 9 9 5 6 8 9 5 7 6 8 13 3 | 6 7 6 8 8 7 10 9 10 13 7 8 9 18 13 4 | 16 12 12 6 6 7 18 5 4 10 12 9 10 17 16 5 | 8 12 8 13 9 13 8 10 14 12 5 10 14 24 26 6 | 6 11 8 9 9 10 12 17 19 11 10 16 39 21 32 7 | 11 21 17 14 10 12 18 14 5 14 22 9 33 33 33 8 | 14 20 18 16 14 11 16 24 9 9 7 6 29 22 9 | 13 14 22 14 10 15 23 24 15 18 7 16 27 33 10 | 20 25 13 12 34 14 13 23 10 8 4 13 26 23 11 | 10 15 11 11 8 8 17 26 14 6 2 7 8 18 22 12 | 10 7 11 9 13 7 11 12 5 6 1 8 9 22 10 13 | 6 3 6 5 10 4 9 12 4 5 1 3 12 7 17 14 | 6 2 5 2 8 6 4 10 2 8 2 7 11 10 15 | 4 3 1 4 1 6 10 2 9 2 6 10 8 10 16 | 3 5 4 2 2 5 3 10 4 1 2 2 41 8 7 17 | 6 1 1 5 10 12 2 3 5 3 4 24 10 9 18 | 3 2 2 6 20 5 4 7 2 6 8 9 11 11 15 19 | 15 5 3 7 15 22 7 35 24 2 5 12 6 7 5 20 | 3 5 5 6 10 6 31 6 7 4 7 10 10 13 21 21 | 13 5 7 7 8 11 20 5 4 4 8 13 19 12 17 22 | 3 9 12 6 4 13 19 8 5 6 5 6 15 14 14 23 | 8 7 6 6 9 6 12 7 6 7 13 10 18 16 15 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2022 | April 2022 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 19 12 8 11 17 17 14 25 30 12 19 18 12 10 6 1 | 18 5 14 6 9 25 24 22 16 9 11 10 12 10 8 2 | 12 18 12 9 11 8 24 23 26 14 17 10 9 17 14 3 | 18 18 22 18 16 19 25 24 34 24 23 40 16 27 34 4 | 16 22 18 25 25 22 26 30 30 22 34 23 21 22 17 5 | 23 25 27 23 20 28 27 28 15 26 34 19 30 35 25 6 | 21 25 33 22 36 34 38 47 36 55 32 29 18 20 33 7 | 23 32 29 31 25 44 44 72 33 36 41 26 27 39 25 8 | 24 34 28 23 36 46 51 44 39 46 26 29 21 39 33 9 | 25 28 26 36 30 46 53 72 34 36 38 30 27 26 32 10 | 31 41 36 27 44 43 59 37 30 37 31 29 20 21 20 11 | 22 25 32 13 21 34 44 39 18 29 16 25 25 30 17 12 | 10 20 23 20 17 35 23 33 19 16 14 20 18 29 7 13 | 21 15 12 9 8 21 16 16 12 17 13 20 20 12 8 14 | 11 12 10 8 20 22 13 20 13 19 13 5 28 48 6 15 | 17 9 14 8 14 23 21 24 7 7 5 5 21 19 13 16 | 7 8 15 8 16 15 16 13 13 10 10 33 18 6 8 17 | 7 16 10 33 14 19 17 8 5 11 11 30 9 7 10 18 | 12 11 8 9 7 18 31 12 6 8 7 8 28 23 14 19 | 21 37 25 7 16 16 25 24 34 13 10 14 22 25 36 20 | 12 7 18 11 18 19 30 24 12 8 6 17 13 42 7 21 | 10 15 17 12 25 30 18 20 26 14 12 15 13 5 8 22 | 15 15 19 15 11 29 34 22 15 25 9 17 5 21 15 23 | 18 7 12 13 14 26 39 29 16 14 12 7 8 36 15 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2022 Ivan Sergey -------------------------------------------------------------------- Observer: Chris Steyaert Location: Mol, Belgium (5 07' 15" E, 51 10' 30" N) Frequency: 49.990 MHz OT1KZG Transmitter: VVS beacon at Astrolab IRIS, Ypres, Belgium (2 54' 45" E, 50 49' 03" N), 50 W, carrier (no modulation), LHCP, upward beaming Antenna: Diamond HB9CV, elev 45 deg, azimuth 270 deg (W), below roof cam Receiver: HRO MRX-50 Computer: Toshiba Satellite 1555CDS, Win98 Observing method: manual count of Speclab recordings | April 2022 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 20 17 17 30 16 33 14 16 18 20 18 14 11 20 11 1 | 14 17 23 25 24 21 20 12 19 22 22 14 19 17 17 2 | 11 22 18 22 13 12 23 18 30 17 17 30 21 19 12 3 | 24 22 22 23 19 21 10 11 13 18 19 22 12 29 8 4 | 14 17 18 15 20 17 12 15 24 17 13 16 10 11 7 5 | 16 13 20 16 14 16 13 14 13 13 16 10 15 8 10 6 | 7 18 16 14 12 15 8 9 15 16 17 19 14 20 17 7 | 12 19 11 14 15 11 10 14 20 14 9 6 12 20 9 8 | 10 11 8 15 16 13 10 11 10 10 9 25 23 12 10 9 | 16 9 14 11 14 20 12 11 12 10 9 19 16 8 10 | 8 10 11 12 13 17 9 13 8 7 6 16 7 6 11 | 16 11 11 7 12 15 7 14 7 8 11 9 8 6 12 | 12 10 9 7 15 15 6 16 11 17 10 12 9 10 13 | 6 15 14 11 21 11 11 15 3 10 14 17 10 9 14 | 12 12 23 9 13 11 12 13 8 11 10 11 8 10 15 | 11 14 9 9 6 13 11 11 11 12 7 13 8 10 16 | 10 5 7 10 7 9 5 7 5 10 14 10 5 6 17 | 10 8 5 13 7 3 11 9 8 3 5 11 5 4 18 | 8 11 7 7 2 7 3 12 6 6 13 8 5 9 19 | 5 6 7 9 5 5 5 7 12 11 6 8 3 10 20 | 11 9 12 14 10 8 9 10 11 11 10 9 9 10 21 | 12 17 9 8 13 12 20 19 12 9 9 19 14 5 10 22 | 15 15 23 7 9 18 14 19 13 12 7 14 14 15 12 23 | 16 18 21 9 11 12 24 10 20 20 15 20 27 10 15 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2022 | April 2022 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 15 16 22 21 21 34 23 26 16 28 22 21 24 32 15 1 | 12 13 24 26 22 21 26 30 30 26 22 17 27 17 24 2 | 14 12 30 24 18 21 23 32 21 19 19 21 24 19 23 3 | 17 21 24 21 27 27 17 33 18 27 23 18 18 21 22 4 | 16 19 21 25 23 25 30 28 24 24 27 20 23 16 33 5 | 11 18 16 17 25 22 16 17 25 21 21 16 25 20 26 6 | 6 14 20 19 12 19 18 18 25 20 21 28 22 26 26 7 | 9 14 23 24 19 21 18 15 16 24 14 23 16 15 15 8 | 6 9 16 26 20 23 23 30 23 23 12 17 18 23 25 9 | 10 7 8 8 9 8 23 22 17 21 10 9 10 15 20 10 | 9 7 10 4 10 5 11 13 11 16 11 8 19 14 11 | 11 6 5 14 7 10 8 8 19 10 5 9 8 12 9 12 | 6 8 10 10 7 9 9 19 10 13 10 16 14 21 12 13 | 11 6 8 9 11 10 14 22 12 11 13 13 9 19 14 14 | 9 12 13 6 8 11 18 17 12 12 16 10 20 11 11 15 | 12 7 11 10 9 7 10 12 12 19 10 16 18 12 9 16 | 8 14 6 16 13 9 14 9 16 10 12 10 9 15 11 17 | 6 7 7 5 9 5 8 7 10 10 5 8 3 12 6 18 | 8 7 13 7 9 7 5 10 5 6 11 14 11 11 9 19 | 7 9 11 24 5 14 11 14 13 15 7 8 4 12 11 20 | 9 19 13 16 15 14 11 17 7 19 7 8 13 15 11 21 | 11 14 16 17 14 14 17 16 14 16 8 9 8 23 21 22 | 8 22 13 22 18 31 25 14 21 13 16 16 18 24 22 23 | 10 15 20 13 25 16 28 23 19 25 17 11 21 19 14 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2022 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 2022 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 20 13 6 35 28 29 40 42 35 28 31 44 45 39 4 1 | 26 9 19 35 26 29 45 35 36 26 39 37 49 43 11 2 | 12 7 33 29 21 29 24 40 31 24 24 34 30 32 24 3 | 13 30 20 27 22 17 30 36 19 23 33 30 32 33 19 4 | 14 21 22 24 18 28 29 27 23 19 25 24 23 35 4 5 | 22 26 17 25 24 20 21 24 17 24 25 30 31 29 5 6 | 31 18 18 31 23 24 31 19 21 16 19 26 30 26 4 7 | 10 27 16 26 25 17 26 16 31 23 26 13 47 30 29 8 | 23 22 9 42 24 23 46 22 36 36 15 8 29 31 32 9 | 30 17 6 32 24 13 25 35 17 23 17 10 8 28 42 10 | 21 33 5 21 23 21 16 38 12 24 11 13 9 31 28 11 | 17 23 4 8 20 9 15 41 6 26 19 26 9 28 33 12 | 22 17 22 14 15 18 9 42 1 17 16 15 15 30 30 13 | 24 15 17 10 2 7 7 23 6 13 11 17 9 22 34 14 | 15 19 8 13 4 10 9 16 5 25 18 14 9 24 16 15 | 18 11 5 8 15 6 4 18 3 18 13 21 15 17 9 16 | 10 14 3 5 17 12 5 12 3 11 26 15 18 13 16 17 | 14 13 8 5 14 6 9 13 7 18 7 14 17 17 13 18 | 14 12 9 13 17 12 17 17 15 21 13 24 10 17 31 19 | 5 15 9 16 12 20 19 31 18 20 6 16 18 24 24 20 | 10 10 13 11 21 21 19 22 19 18 13 24 18 17 21 21 | 11 2 21 19 20 30 27 28 23 29 13 21 29 32 26 22 | 9 7 24 30 30 23 33 31 22 45 28 30 42 34 31 23 | 16 7 32 30 36 36 37 21 29 31 43 40 41 15 33 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2022 | April 2022 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 36 45 33 25 14 31 23 35 21 32 31 40 23 34 37 1 | 39 35 33 24 8 33 31 42 32 35 27 36 15 30 38 2 | 30 38 24 9 27 14 29 32 25 38 36 41 22 29 35 3 | 33 43 25 20 29 35 26 49 28 24 36 26 26 20 28 4 | 34 29 24 21 26 36 30 29 30 35 23 39 31 29 14 5 | 27 33 18 15 15 33 13 27 13 39 29 44 18 17 38 6 | 28 16 14 16 15 24 23 18 21 20 32 40 14 23 33 7 | 12 24 28 17 23 24 31 12 15 18 16 42 27 28 23 8 | 18 24 26 18 23 17 14 6 18 8 14 47 26 16 13 9 | 13 5 22 18 16 24 13 4 7 7 5 44 28 9 9 10 | 8 15 21 10 22 9 9 22 25 5 9 34 40 10 11 11 | 7 10 29 6 17 1 11 16 34 2 13 27 23 8 24 12 | 28 25 35 9 20 2 7 4 20 2 25 25 19 6 29 13 | 39 32 19 12 16 2 7 20 9 4 23 14 29 13 29 14 | 30 15 16 11 7 7 5 16 9 15 23 13 14 9 17 15 | 19 8 17 12 11 9 7 13 19 17 11 3 16 18 19 16 | 13 21 15 12 14 10 8 11 25 24 20 9 14 18 18 17 | 12 17 17 9 14 7 12 9 13 11 20 6 12 14 28 18 | 16 16 16 23 26 6 19 2 23 24 11 11 17 16 26 19 | 17 14 21 24 24 14 11 5 22 22 18 17 17 18 16 20 | 21 26 21 27 18 12 19 7 23 19 35 19 18 26 29 21 | 32 31 28 21 33 22 15 6 20 29 15 19 16 30 22 | 32 36 30 30 32 22 20 7 29 33 40 22 26 22 23 | 49 31 33 35 30 25 41 29 26 35 39 19 38 39 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2022 Istvan Tepliczky -------------------------------------------------------------------- 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 2022 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 1 0 2 1 1 4 3 2 1 0 4 1 0 2 1 1 | 4 3 1 3 1 3 5 1 1 2 2 3 2 0 4 2 | 0 1 0 0 1 2 2 2 3 0 1 1 1 2 3 3 | 2 1 2 1 2 3 1 2 1 1 3 0 2 3 1 4 | 1 3 0 0 3 1 6 8 4 4 1 1 2 3 6 5 | 2 6 4 3 4 1 6 7 3 3 1 1 3 4 3 6 | 0 2 2 1 3 2 1 1 2 1 1 3 3 2 8 7 | 0 0 3 4 2 4 3 6 5 2 1 1 2 4 6 8 | 2 2 2 2 4 5 3 7 3 1 1 7 2 3 5 9 | 1 1 1 3 3 0 6 2 2 1 3 5 5 4 5 10 | 2 2 1 1 2 1 2 4 6 2 3 0 4 4 2 11 | 2 1 0 1 0 1 5 2 3 1 4 5 1 1 3 12 | 3 3 0 0 2 0 2 4 0 0 2 0 3 2 4 13 | 3 0 0 1 4 1 1 0 0 0 1 1 1 0 1 14 | 0 1 0 0 1 3 2 2 0 1 0 1 3 1 2 15 | 1 0 1 1 1 2 1 1 0 0 0 0 1 0 1 16 | 1 1 0 3 1 2 0 1 0 0 0 4 0 0 1 17 | 0 0 0 1 2 1 0 1 0 0 0 0 1 0 0 18 | 2 0 0 0 1 1 0 2 0 0 0 0 1 1 0 19 | 0 0 1 1 0 0 0 1 0 0 1 0 0 0 2 20 | 0 0 1 0 0 2 0 0 0 0 0 1 1 1 1 21 | 2 0 0 1 0 1 2 2 0 1 1 0 0 2 0 22 | 2 0 1 0 0 2 0 1 2 0 0 1 1 1 1 23 | 5 1 1 1 2 4 1 1 3 0 0 4 2 0 2 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2022 | April 2022 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 1 3 1 0 5 2 5 3 6 2 1 1 3 2 1 1 | 1 0 4 5 2 2 1 5 2 4 1 3 4 3 1 2 | 4 1 3 1 3 5 2 10 2 4 0 4 5 1 2 3 | 4 2 5 3 2 1 5 9 0 1 2 5 3 1 2 4 | 2 5 3 3 5 3 9 9 3 3 1 4 2 9 3 5 | 4 2 4 3 4 2 2 10 3 2 4 5 3 2 6 6 | 3 3 4 4 3 6 4 7 1 4 7 4 5 7 4 7 | 2 2 3 4 5 4 6 8 2 5 4 6 6 4 2 8 | 5 0 2 10 8 7 2 9 4 6 4 8 6 5 8 9 | 4 2 0 3 3 1 4 5 4 6 4 4 5 7 4 10 | 4 1 1 2 0 3 5 7 1 6 2 4 4 5 5 11 | 6 0 1 0 2 3 1 1 3 1 3 4 3 4 1 12 | 3 2 4 1 1 0 2 2 1 3 2 3 4 2 1 13 | 2 2 1 0 1 1 0 0 1 2 2 2 4 2 1 14 | 0 2 0 0 2 0 0 1 1 1 0 0 2 0 0 15 | 1 0 1 1 1 1 0 1 0 0 0 2 1 3 2 16 | 1 1 0 2 0 0 1 0 1 0 1 0 0 1 0 17 | 0 0 1 0 1 2 0 0 0 1 0 1 0 2 0 18 | 0 2 0 1 1 0 0 1 0 1 0 0 1 0 0 19 | 0 0 0 1 0 1 0 0 1 0 1 0 1 0 1 20 | 0 2 1 1 2 0 2 0 1 0 2 1 0 1 1 21 | 0 1 1 0 1 2 3 2 0 1 0 3 1 3 1 22 | 1 2 0 2 5 6 3 3 2 4 1 3 0 1 2 23 | 1 1 2 2 3 1 4 2 3 2 2 2 1 2 1 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2022 Duration >= 10 seconds | April 2022 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 0 0 0 0 0 0 1 | 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 2 | 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 3 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 | 0 0 0 0 1 0 0 2 0 2 0 0 0 0 0 5 | 0 2 0 0 1 1 2 4 0 1 0 0 1 2 1 6 | 0 0 0 0 1 0 0 0 0 0 0 0 0 0 4 7 | 0 0 1 1 0 2 1 1 2 0 0 0 0 1 0 8 | 1 0 0 1 1 0 0 2 0 0 0 3 0 1 0 9 | 0 0 0 0 1 0 1 0 0 0 1 1 1 1 0 10 | 0 1 0 0 1 0 0 0 0 0 1 0 0 0 0 11 | 0 0 0 0 0 0 0 1 0 0 2 1 1 0 0 12 | 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 13 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 14 | 0 0 0 0 0 0 0 0 0 0 0 0 1 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 1 0 1 0 0 0 0 0 0 0 22 | 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 23 | 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2022 | April 2022 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 0 0 0 0 0 1 1 1 2 0 0 1 1 0 0 1 | 0 0 1 1 0 0 0 2 0 1 0 0 1 0 1 2 | 0 0 0 0 0 0 1 2 0 0 0 0 0 0 0 3 | 1 1 0 0 1 0 0 5 0 0 0 0 0 0 1 4 | 1 3 1 0 2 0 6 6 1 0 0 2 0 2 0 5 | 1 0 1 2 2 2 0 4 0 1 2 0 0 0 2 6 | 0 1 1 1 0 0 1 3 1 0 1 1 1 5 1 7 | 1 0 0 1 0 1 4 4 1 0 1 0 1 1 1 8 | 1 0 1 1 2 1 0 2 2 1 2 1 0 2 1 9 | 0 1 0 0 0 0 2 3 2 0 0 1 0 0 0 10 | 1 0 1 0 0 2 1 1 0 3 0 1 0 0 2 11 | 0 0 0 0 1 1 0 0 0 0 0 0 1 0 0 12 | 0 1 1 0 0 0 0 0 0 1 0 0 0 1 1 13 | 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 14 | 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 15 | 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 16 | 0 1 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 0 0 0 0 22 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 23 | 0 0 0 1 0 0 1 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 2022 Note: . increased noise since June 12, 2019, normally not affecting the long duration counts. Felix Verbelen 2. ABOUT THE RMOB The RMOB is an independent initiative of some workers in the field of radio meteor scatter observations and data reduction. It started in August 1993 in order to spread the Perseid results via E-mail. Since then, it has appeared monthly, and it has gradually been expanded. In regularly publishing summaries of observations, potential radio observers are kept up to date of existing installations, possibilities and limitations of radio meteor observations. In the long run, there should be sufficient observing stations to cover the whole globe, allowing to detect stream outbursts which may remain unnoticed visually. RMOB contains typically: summaries of previous month's observations, equipment data, first results of stream activity by radio methods, relations between radio and optical meteors, references to other publications in the field of meteor astronomy and radio scatter techniques, announcements of meetings, short questions and answers, links to interesting web sites. Contributors are mentioned, and interested persons are asked to contact them directly. RMOB can be copied freely in unabridged and unmodified form. Extracts should indicate the source (Radio Meteor Obs Bulletin, month and year). If you want to subscribe (or un-subscribe) to the E-mail distribution list, please send a message to C. Steyaert. 3. CONTRIBUTORS / USEFUL ADDRESSES Enric Fraile Algeciras (EA3BTZ) http://www.telefonica.net/web/enricfraile (in Spanish) http://astrosurf.com/somyce/c_radio.htm Bernard Bayle http://www.bbayle.com Michael Boschat http://www.chebucto.ns.ca/~aa063 Jeff Brower http://members.shaw.ca/jbrower/ Franky Dubois http://www.digilife.be/club/franky.dubois/meteor.html David Entwistle http://www.radiometeor.plus.com/ Karl-Heinz Gansel http://www.radio-astronomie.de/ra/ Peter Knol http://home.deds.nl/~knol Hiroshi Ogawa Radio Meteor Obs. http://www.amro-net.jp/radio.htm Mike Otte W9YS mailto:mike.otte96@gmail.com Enrico Stomeo, Planetario di Venezia http://www.astrovenezia.net/planetario.htm Jochen Plessmann, WHS Walter Hohmann Sternwarte http://www.walter-hohmann-sternwarte.de/ SKiYMET Radar http://www.iap-kborn.de/radar/Radars/ALWIN/index_eng.htm Wayne Sanders http://users.xplornet.com/~rdlobs/ Andy Smith http://www.tvcomm.co.uk/radio - Live audio available Chris Steyaert Mol, Belgium mailto:observations@rmob.org Most recent spectrograms: http://www.rmob.net Radio meteor mailing list (English): radiometeoren@ls.vvs.be, send 'subscribe' in subject or body to radiometeoren-request@ls.vvs.be Twitter @rmob_org Dave Swan http://www.radiodesignservices.co.uk Istvan Tepliczky Online: http://www.galileowebcast.hu/radiometeor Pierre Terrier http://radio.meteor.free.fr/ Meteor mailing list: mailto:meteor-request@ml.free.fr?subject=subscribe Maarten Vln https://www.vvs.be/werkgroepen/werkgroep-radioastronomie/beelden-radiometeoren-op-internet-zetten Joseph Welkenhuyzen https://sites.google.com/site/rmopv2/home-1 Richard White, Gi4DOH http://www.ramfihaz.com/information.htm -- Christian Steyaert (RMOB2204) 5 May 2022 --