Meteor Observation Bulletin No. 213 www.rmob.org April 2011 1. GLOBAL OBSERVATIONS Observer: Enric Fraile Algeciras Location: Centre Meteorologic de l'Alt Camp (Tarragona) (01 15' E, 41 17' N) Frequency: 49.7396 MHz Transmitter Location: CZE Praha and HNG Budapest Antenna: 3 element Yagi Azimuth 200 deg (NE), elevation 20 deg Receiver: home made converter 20 dB gain, 1 dB noise and Kenwood TS570. 10 dB attenuator in the receiver to reduce direct reception Sensitivity: 0.25 uV for 10 dB S/N Observing method: the audio signal of the video carrier is received using a SSB filter (2500 Hz) and fed into the PC in real time. Data sampling system: own written software "MSD" with sound card. | April 2011 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 7 33 23 35 41 5 6 25 8 61 72 34 13 19 9 1 | 0 5 2 0 0 1 2 1 1 2 9 1 1 0 0 2 | 0 2 0 0 0 0 1 0 1 0 1 0 1 5 0 3 | 47 18 19 34 37 50 45 39 19 29 50 56 52 48 30 4 | 40 57 49 36 67 37 44 55 61 57 59 60 60 63 44 5 | 47 43 44 50 53 68 68 40 72 70 74 62 64 72 68 6 | 45 42 53 57 54 49 58 51 59 74 69 90 82 54 64 7 | 48 33 52 62 69 55 60 53 65 68 67 88 68 68 63 8 | 46 44 59 57 66 63 60 53 48 69 66 87 71 71 53 9 | 47 50 62 34 67 39 65 53 51 62 87 81 56 62 53 10 | 41 51 50 47 56 56 52 55 69 70 81 53 54 41 50 11 | 35 53 49 42 48 40 51 47 34 49 58 59 37 89 36 12 | 32 42 37 22 30 41 36 33 29 41 24 25 40 42 24 13 | 21 23 12 19 21 25 22 22 18 12 17 23 21 14 17 14 | 11 11 20 17 9 14 14 8 7 10 12 18 18 15 14 15 | 5 9 5 10 13 12 11 11 13 16 17 10 17 16 6 16 | 5 5 8 14 14 9 12 16 12 12 17 6 15 10 20 17 | 8 4 11 10 11 9 11 7 7 7 16 7 3 9 12 18 | 14 13 12 15 6 9 7 11 9 14 9 9 8 13 16 19 | 14 7 6 15 21 11 14 21 12 24 16 17 16 13 9 20 | 16 18 16 21 24 16 15 21 27 26 16 18 12 11 14 21 | 24 37 14 22 36 25 23 24 32 22 22 32 31 32 26 22 | 33 47 35 40 22 35 32 34 39 53 28 51 36 26 36 23 | 37 39 44 54 32 41 45 39 58 61 53 51 43 51 31 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2011 | April 2011 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 32 55 55 38 15 14 33 40 1 | 9 0 1 10 2 1 1 10 2 | 0 0 1 1 1 0 1 3 | 30 48 51 47 36 50 21 4 | 72 57 62 60 78 78 74 5 | 88 79 80 57 69 85 113 6 | 89 75 55 79 71 120 85 7 | 9 47 68 60 104 69 96 75 8 | 66 76 92 77 61 56 92 75 9 | 78 73 90 71 53 88 71 94 10 | 70 39 51 59 53 49 79 66 11 | 54 40 36 31 48 38 52 35 12 | 19 23 17 19 21 16 36 33 13 | 25 24 13 14 15 17 34 26 14 | 19 12 16 15 16 16 37 13 15 | 9 12 11 10 24 16 18 17 16 | 19 9 10 13 10 13 11 12 17 | 15 10 9 9 6 15 9 15 18 | 9 13 10 20 16 19 9 9 19 | 11 11 23 33 8 13 6 13 20 | 16 18 18 13 21 14 21 18 21 | 37 20 25 24 32 15 21 30 22 | 35 26 42 37 19 27 38 18 23 | 49 61 39 55 48 54 37 48 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2011 Notes: . ? local interference or Es propagation opening Enric Fraile Algeciras ---------------------------------------------------------------------------- Observer: Orlando Benitez Location: Las Palmas de Gran Canaria, Spain (28 07' N, 15 27' W, h=150 m) Receiver: ICOM IC R 7000 Antenna: 5 element Yagi, Az 210 deg (NE), elev 15 deg Coax RG 213 50 m (from Jan 2009 onwards) Frequency: 55.2522 MHz Transmitter: Lousa Portugal Computer: PIII 800MHz, 512 RAM Sound Blaster 128 PCI. Data sampling system: SSB band with software MSD and sound card Colorgramme RMOB Lab v 2.3 Meteor reflections/hour | April 2011 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 66 78 95 109 99 105 1 | 67 84 98 90 99 101 2 | 176 90 68 119 73 94 65 174 103 185 3 | 75 76 73 91 101 75 90 242 114 89 133 102 93 4 | 62 178 74 70 77 103 89 104 113 80 112 95 118 60 5 | 76 167 80 71 85 91 117 100 92 108 94 138 108 224 6 | 96 103 72 91 73 175 107 105 130 122 143 126 155 188 7 |104 63 113 98 98 133 108 89 114 141 177 130 157 270 8 | 81 65 143 131 96 109 114 113 170 185 131 109 162 9 |117 64 133 104 95 146 102 140 123 269 122 146 148 118 10 | 66 54 81 53 90 99 112 103 143 79 105 125 63 245 11 | 59 45 72 62 52 91 87 87 75 240 102 74 88 55 52 12 | 27 28 31 37 18 36 60 39 60 32 46 42 56 20 133 13 | 23 15 27 36 28 27 23 35 47 50 21 26 19 25 82 14 | 17 20 18 25 19 31 26 47 41 105 30 30 37 35 24 15 | 24 20 29 99 63 39 24 49 6 32 32 24 37 36 16 | 22 16 24 11 48 16 35 94 22 25 33 29 22 17 | 23 43 21 19 21 32 22 15 20 179 18 18 | 70 51 11 15 10 27 66 90 10 26 28 19 | 7 17 26 11 70 19 23 87 72 23 19 20 | 21 31 36 17 23 23 27 24 108 36 22 13 21 21 | 42 31 24 22 | 49 73 63 23 | 78 87 86 85 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2011 | April 2011 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h|111 98 122 87 155 154 147 112 133 120 130 1 |145 112 115 100 278 169 141 129 119 111 118 2 | 98 97 101 75 239 203 106 120 127 116 89 3 |140 111 117 78 189 146 87 95 172 97 97 4 |113 115 129 72 157 178 127 115 90 143 130 115 5 |121 100 143 113 170 180 157 144 123 177 140 134 6 |112 130 167 259 181 212 212 204 196 197 227 7 |115 147 145 224 251 182 156 160 194 184 165 8 |121 163 138 239 198 174 187 219 239 228 9 |117 173 173 235 168 158 189 174 213 152 10 |125 132 106 148 144 109 119 161 147 168 11 |105 91 156 92 67 77 128 78 158 12 | 72 47 53 56 175 51 59 54 72 71 13 | 37 51 42 23 55 77 39 46 51 69 42 62 14 | 40 43 62 66 57 79 60 55 50 81 42 79 15 | 44 57 35 69 192 49 36 61 13 51 16 | 27 36 39 36 41 49 37 49 41 53 17 | 22 18 25 36 29 73 25 37 30 33 25 18 | 22 18 18 46 57 65 25 13 30 19 | 23 21 72 100 25 11 43 11 20 | 31 25 27 25 32 31 26 44 54 22 21 | 45 153 207 43 55 57 47 30 22 | 62 70 93 76 69 43 75 59 23 | 74 72 115 134 113 92 107 81 106 79 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2011 Orlando Benitez ---------------------------------------------------------------------------- Observer: Michael Boschat Location: Halifax, Canada (63 36' W, 44 39' N, 58 meters above sea level) Listening Frequency: 67.24 MHz Receiver: Icom R-10 Antenna: resonant dipole Antenna Direction: Horizontally polarized with lobes in E-W plane, elev 0 deg Filter: high-Q (Q at least 300) bandpass filter between antenna & receiver. Listening Mode: CW Recording method: listening by ear Number of meteors heard in one hour interval | April 2011 UT | 2 3 4 5 6 7 8 9 10 11 ---+------------------------------------------------ 09h| - - - - - - - - - - 10 | - - - - - - - - - - 11 | - - - - - - - - - 4 12 | 21 - - 2 - 35 35 - - 3 13 | 8 - - 7 - 22 28 - - 4 14 | 7 - - - - 18 38 - - - ---+------------------------------------------------ UT | 2 3 4 5 6 7 8 9 10 11 | April 2011 | April 2011 UT | 18 19 20 21 22 23 24 ---+--------------------------------- 09h| - - - - - - - 10 | - 16 16 - - - - 11 | 9 15 27 89* 63 44 - 12 | 11 21 32 168* 76 42 31 13 | 5 18 33 64* 35 52 27 14 | 8 11 22 74* 19 25 30 15 | 13 - 26 43* - 27 - 16 | 17 | 18 | 19 | 20 | - - - - 135* - - 21 | - - - - 101* - - 22 | - - - - 82* - - ----+---------------------------------- UT | 18 19 20 21 22 23 24 April 2011 Notes: . Because of the USA switching their TV signals to digital from analog I have now dropped my frequency to Channel 4 at 67.25 MHz and now am getting similar results. I must be hearing only Canadian TV stations that are still using analogue signals till about 2011. . no corrections for radiant position made to the counts. . ( - ) means no observations made. . ( * ) Testing new frequency of 40.67 MHz in CW mode..good! Mike Boschat --------------------------------------------------------------------------- Observer: Jeff Brower Location: Kelowna, British Columbia, Canada (49 51' N, 119 34' W) at 427 meters Receiver: ICOM PRC-1000 CW mode Sensitivity: 0.32 uV for 10 dB S/N for CW mode Antenna: 5 element log Periodic az 90 deg (East) Frequency: 67.240 MHz Transmitter: multiple 100 kW Computer: Linux - WINE Data sampling system: Spectrum Lab counting echoes Meteor reflections/hour | April 2011 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+------------------------------------------------------------ 0h| 25 27 29 32 45 29 41 22 17 35 37 28 30 37 31 1 | 27 34 28 25 36 30 29 15 22 18 39 24 44 40 33 2 | 34 33 30 18 41 21 34 29 30 40 40 38 25 34 6 3 | 45 48 41 46 38 24 58 49 55 28 40 42 43 46 49 4 | 61 55 58 52 59 32 67 51 71 65 40 40 59 62 69 5 | 79 78 80 72 83 61 80 91 72 71 45 74 67 80 78 6 | 91 90 88 78 87 92 89 106 105 99 106 79 97 103 79 7 | 109 114 97 113 119 109 115 100 137 92 121 99 94 113 94 8 | 123 112 105 108 131 137 123 122 116 119 106 111 104 110 95 9 | 106 118 111 122 155 137 93 89 122 121 121 86 101 117 65 10 | 108 - 111 135 109 89 86 114 99 125 110 98 122 111 73 11 | 110 - 104 114 105 126 104 119 114 105 111 83 127 - 77 12 | 90 - 104 104 95 102 - 92 114 109 110 93 101 112 63 13 | 94 - 97 102 105 77 - 61 110 127 93 96 110 128 73 14 | 110 - 104 121 93 88 - 89 114 140 86 117 125 122 65 15 | 110 27 125 113 105 119 - 143 145 136 98 120 119 137 89 16 | 128 128 129 125 109 125 - 128 126 111 96 125 95 111 123 17 | 142 112 124 136 116 130 - 137 113 114 72 113 94 120 101 18 | 97 80 121 103 90 97 - 110 108 113 75 107 104 93 73 19 | 100 70 66 112 82 77 - 87 77 83 76 88 79 79 81 20 | 76 53 64 78 66 91 - 65 71 81 39 74 66 55 53 21 | 56 32 40 49 36 50 13 53 44 44 26 48 52 53 36 22 | 34 33 32 55 49 49 43 50 40 27 30 47 48 47 51 23 | 34 14 24 50 35 27 30 34 25 40 30 47 41 24 32 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2011 | April 2011 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+------------------------------------------------------------ 0h| 31 23 53 47 23 23 40 27 50 26 50 36 39 31 43 1 | 36 25 34 41 14 38 47 38 31 26 29 44 38 32 37 2 | 30 36 42 39 45 50 44 43 49 37 43 53 43 53 34 3 | 25 31 51 51 53 52 48 55 65 41 57 65 73 47 49 4 | 55 57 71 52 42 69 62 64 71 52 90 83 50 68 52 5 | 68 57 81 88 96 79 95 75 99 63 105 100 84 100 89 6 | 95 112 102 119 89 100 121 110 122 69 113 116 109 103 103 7 | 118 109 106 111 103 130 128 142 131 116 125 137 118 125 98 8 | 82 100 120 128 133 126 137 138 128 100 139 139 128 110 110 9 | 116 113 132 124 118 137 152 154 115 93 130 131 118 116 116 10 | 92 109 127 116 143 123 134 129 131 85 129 106 108 121 104 11 | 95 117 123 133 126 137 149 142 128 82 139 136 103 110 102 12 | 105 124 139 113 131 129 135 155 148 82 147 136 107 136 125 13 | 102 119 136 128 121 124 155 164 145 120 150 150 145 146 145 14 | 103 124 145 139 136 139 147 155 180 145 145 186 138 122 188 15 | 135 140 158 141 133 161 151 135 180 157 188 154 125 191 193 16 | 123 132 176 143 102 164 145 124 185 131 139 170 137 184 158 17 | 117 108 133 148 112 159 126 133 155 143 127 143 128 187 126 18 | 74 112 137 115 78 123 135 119 133 148 92 125 132 167 118 19 | 74 69 115 84 65 111 94 74 83 110 87 127 101 120 94 20 | 46 66 70 58 65 72 56 85 74 86 55 86 68 87 87 21 | 30 51 61 38 48 53 57 55 - 67 53 60 64 72 81 22 | 33 44 43 33 40 34 38 51 - 57 38 58 67 71 50 23 | 21 38 36 30 38 42 26 44 - 37 38 53 43 53 50 ---+------------------------------------------------------------ UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2011 Notes: . - = System Down . Es = Sporadic E . Local time is PST or UT-8 Jeff Brower NK0L ---------------------------------------------------------------------- Observer: Willy Camps Location: Tessenderlo, Belgium (5 06' E, 51 05' N) Frequency: 49.990 MHz OT1KZG Transmitter: VVS beacon at Astrolab IRIS, Ypres, Belgium (2 54' 36" E, 50 49' 05" N), 50 W, carrier (no modulation), LHCP, upward beaming Antenna: 2 element quad in diamond shape, az 87 deg, elev 45 deg Receiver: AR8600 Mark2 SE Computer: Notebook Observing method: Spectrumlab, Colorgramme for RMOB v 2.3 | April 2011 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 29 24 26 25 37 29 31 32 22 36 25 29 31 28 38 1 | 30 16 23 27 22 22 30 37 31 37 24 38 31 37 28 2 | 31 28 29 24 27 20 28 40 25 30 31 34 28 23 26 3 | 21 20 15 27 21 25 22 30 21 22 14 27 28 22 28 4 | 14 18 17 20 22 20 16 21 18 22 11 17 20 19 21 5 | 23 20 12 16 17 19 19 27 23 20 20 17 21 20 18 6 | 19 13 17 18 19 13 18 22 18 23 20 17 18 29 23 7 | 18 17 21 17 22 18 24 21 19 27 21 25 22 30 22 8 | 23 16 23 19 20 19 27 21 26 24 21 31 18 30 23 9 | 20 28 13 27 18 16 24 24 19 20 25 15 24 25 18 10 | 18 21 20 26 17 16 20 24 22 21 12 17 21 23 18 11 | 18 17 16 20 25 18 9 19 20 17 26 15 19 19 23 12 | 21 11 12 16 19 21 15 8 20 10 20 16 19 9 19 13 | 13 11 17 16 16 12 13 8 12 13 17 14 13 14 12 14 | 9 9 8 13 10 12 12 10 12 10 11 14 12 10 14 15 | 12 7 5 7 5 14 10 9 3 11 11 10 11 6 11 16 | 5 8 9 6 6 12 5 12 9 12 8 6 5 4 9 17 | 8 2 9 5 7 6 6 7 5 9 8 10 7 6 11 18 | 5 6 10 6 10 13 11 8 8 6 7 13 13 11 8 19 | 6 10 13 16 10 9 11 17 16 8 10 13 17 18 9 20 | 11 20 17 11 9 18 13 22 8 12 17 18 15 10 10 21 | 21 25 20 18 22 24 21 19 16 19 19 15 19 17 20 22 | 25 26 23 21 23 25 28 25 22 23 20 23 19 18 33 23 | 30 25 32 26 40 35 32 24 29 30 28 22 36 25 33 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2011 | April 2011 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 28 38 31 30 31 26 37 29 34 47 37 30 22 28 33 1 | 35 37 27 32 39 31 29 38 31 36 36 31 25 23 22 2 | 30 17 29 22 24 27 28 39 31 28 19 28 20 20 23 3 | 25 16 18 22 20 28 27 38 27 17 19 20 21 16 22 4 | 20 20 26 27 27 25 29 32 30 26 25 21 19 17 26 5 | 26 20 15 24 18 35 29 33 22 20 31 25 28 18 28 6 | 31 21 21 20 25 20 30 39 32 27 20 30 18 21 19 7 | 26 32 16 25 28 29 20 29 30 30 37 32 39 29 27 8 | 15 19 17 20 22 23 23 29 29 27 28 19 30 24 35 9 | 23 19 19 29 24 18 28 26 31 27 29 22 21 20 20 10 | 22 20 22 11 23 26 16 28 21 25 33 17 17 20 28 11 | 20 20 15 14 22 21 17 13 21 20 25 20 22 19 24 12 | 16 13 13 15 14 21 17 23 20 19 24 9 18 17 24 13 | 16 8 12 18 13 17 16 10 16 18 9 14 10 14 16 14 | 9 5 9 6 12 13 11 17 15 13 10 18 14 11 11 15 | 8 8 8 11 7 15 8 8 10 11 10 9 8 5 12 16 | 11 10 4 10 12 8 8 5 10 9 7 13 2 6 13 17 | 7 13 11 10 3 8 9 9 9 13 9 6 8 6 8 18 | 7 9 13 11 13 10 10 9 8 9 5 9 7 9 11 19 | 11 18 13 13 17 13 12 14 12 17 7 13 9 10 12 20 | 11 11 16 11 13 14 22 10 13 14 20 22 16 13 17 21 | 22 14 21 29 17 23 16 13 28 20 23 14 11 20 24 22 | 16 24 24 16 31 32 26 25 19 23 27 28 26 22 21 23 | 24 32 19 33 27 33 41 28 30 40 25 28 24 25 29 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2011 Willy Camps ---------------------------------------------------------------------- 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' 36" E, 50 49' 05" N), 50 W, carrier (no modulation), LHCP, upward beaming Antenna: 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 2011 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 3 2 15 17 16 15 10 12 16 20 17 26 14 11 20 1 | 12 11 5 26 13 14 11 16 15 22 12 20 32 26 23 2 | 8 5 15 10 14 9 13 5 13 26 14 34 23 28 28 3 | 14 16 14 22 18 15 15 16 12 22 14 26 26 23 28 4 | 7 15 23 22 11 12 9 10 7 11 18 23 17 23 6 5 | 6 9 13 15 15 11 12 8 4 16 10 15 11 15 7 6 | 7 5 14 19 13 5 3 6 8 14 3 23 14 12 19 7 | 3 5 5 6 4 6 0 4 6 8 10 8 14 6 10 8 | 1 1 5 5 2 9 5 1 12 9 6 12 4 6 9 9 | 7 3 5 5 6 8 5 4 7 5 8 10 9 6 5 10 | 3 2 2 13 2 3 3 5 4 5 9 6 11 7 5 11 | 10 1 4 2 7 4 0 5 8 6 7 10 5 4 7 12 | 3 3 3 11 7 5 1 4 7 6 9 3 10 12 6 13 | 4 5 1 9 4 9 2 2 9 6 5 10 6 1 5 14 | 4 0 7 6 0 7 5 5 7 5 10 12 6 4 5 15 | 1 0 0 7 0 4 4 4 2 3 3 7 8 6 2 16 | 0 1 6 5 8 2 3 4 5 1 4 3 4 6 7 17 | 1 0 3 3 1 0 2 3 1 5 5 2 6 4 8 18 | 1 3 1 1 6 0 1 4 2 1 8 4 7 1 19 | 0 0 0 4 3 3 4 3 1 7 2 1 1 4 1 20 | 2 2 5 4 3 4 1 9 5 6 2 2 7 1 4 21 | 4 3 5 3 11 6 4 3 5 6 5 13 4 10 3 22 | 4 5 8 7 7 3 4 2 13 7 15 7 12 7 11 23 | 3 9 6 8 8 5 8 17 10 14 12 5 13 8 12 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2011 | April 2011 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 20 12 24 30 24 24 15 27 38 14 28 18 11 26 14 1 | 14 13 27 26 29 19 32 30 34 21 29 9 22 23 9 2 | 19 9 28 28 25 15 27 36 16 15 15 17 11 20 16 3 | 16 10 24 25 12 22 20 21 26 16 22 15 20 21 23 4 | 16 24 9 22 17 19 13 13 28 17 24 21 22 21 26 5 | 10 12 12 21 17 18 14 13 32 19 19 22 13 18 20 6 | 19 12 9 12 22 15 5 6 21 19 10 13 12 14 12 7 | 6 5 8 20 8 7 12 7 18 18 5 15 12 14 11 8 | 5 10 8 13 9 6 11 5 25 9 9 10 4 5 17 9 | 12 8 11 9 8 7 8 3 12 10 10 9 10 15 20 10 | 12 3 5 4 7 2 5 13 7 10 15 8 9 13 13 11 | 7 7 4 15 12 12 7 6 13 6 17 5 15 7 8 12 | 10 3 11 10 10 11 14 8 11 8 11 3 12 6 11 13 | 6 6 12 8 8 16 10 8 11 7 11 4 13 9 4 14 | 6 5 8 6 10 11 10 4 4 7 3 9 14 6 8 15 | 4 6 8 13 7 4 7 4 7 7 6 4 22 6 13 16 | 3 6 5 6 5 10 6 3 0 4 3 3 11 20 4 17 | 1 1 3 9 2 5 2 2 0 3 2 5 5 30 5 18 | 2 4 4 4 7 6 11 6 0 5 6 5 9 21 14 19 | 2 3 7 3 3 0 4 8 22 2 9 3 5 12 20 | 8 8 6 5 5 0 7 7 7 12 7 2 1 19 12 21 | 9 11 6 4 7 4 3 29 9 10 4 5 13 7 9 22 | 3 6 20 19 11 15 9 17 12 11 10 8 16 17 11 23 | 8 7 18 21 16 13 20 31 12 27 10 8 20 16 13 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2011 Johan Coussens ---------------------------------------------------------------------- Observer: Gaspard De Wilde ON4ZK Location: Dessel, Belgium (5 06' E, 51 14' N) Frequency: 49.990 MHz OT1KZG Transmitter: VVS beacon at Astrolab IRIS, Ypres, Belgium (2 54' 36" E, 50 49' 05" N), 50 W, carrier (no modulation), LHCP, upward beaming Antenna: crossed dipole RHCP, elev 45 deg, azimuth 95 deg (W) Receiver and antenna home made Observing method: automated setup, 100 samples/second, 8 bit resolution. differential measurement for local noise reduction. [Time and details of all individual meteor reflections are stored on file in the Ghent University format (Prometeos), and are available for further analysis]. Raw counts of reflections with a maximum amplitude >=40 during one hour interval starting at UT: | April 2011 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 33 40 35 28 38 35 40 44 25 40 30 35 34 26 29 1 | 33 31 35 23 40 39 35 35 33 46 45 47 45 39 35 2 | 44 33 50 39 41 36 39 36 38 29 44 32 31 24 31 3 | 36 31 38 45 31 50 40 42 31 34 36 38 31 20 33 4 | 38 31 29 30 31 25 28 34 34 28 46 27 29 23 24 5 | 32 42 36 37 29 38 31 41 28 41 33 23 37 31 23 6 | 35 32 32 42 46 41 42 30 35 49 40 31 41 50 39 7 | 31 31 36 34 45 38 45 40 37 61 47 34 46 56 51 8 | 43 36 34 32 41 40 46 39 55 39 41 43 44 53 41 9 | 35 47 30 47 53 39 37 44 48 32 44 24 46 33 27 10 | 40 27 34 33 29 22 29 22 41 41 29 23 28 30 22 11 | 26 25 33 25 37 25 21 36 26 27 27 20 28 23 32 12 | 30 15 19 25 21 20 20 13 22 16 15 18 22 18 23 13 | 19 17 12 21 15 14 20 10 14 11 15 17 19 18 11 14 | 11 10 12 15 10 17 10 14 14 7 11 16 17 10 10 15 | 12 6 8 13 15 11 9 8 5 8 11 18 10 8 15 16 | 6 11 14 2 6 7 4 7 10 12 6 2 9 7 8 17 | 8 2 9 6 7 4 9 4 6 10 9 12 6 3 7 18 | 13 8 10 9 7 5 5 10 3 5 8 13 11 8 6 19 | 10 9 11 12 10 9 8 15 14 14 7 8 16 17 8 20 | 15 17 15 15 7 14 12 21 12 10 15 16 13 12 10 21 | 17 28 16 19 23 19 15 24 22 19 22 21 19 18 22 22 | 22 31 22 23 23 36 25 25 34 27 30 25 19 19 31 23 | 33 31 38 25 46 44 49 23 42 39 27 21 30 24 38 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2011 | April 2011 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 20 39 30 29 34 37 30 34 36 40 30 29 36 25 32 1 | 34 38 31 21 39 32 42 42 47 39 36 46 39 26 26 2 | 35 17 31 30 34 28 32 41 44 39 33 35 37 33 42 3 | 35 24 27 33 29 35 29 37 44 33 44 34 44 33 34 4 | 24 36 34 28 38 24 36 30 49 33 45 37 39 36 49 5 | 37 32 26 35 37 34 29 34 46 35 38 34 49 44 46 6 | 49 39 36 20 37 45 41 41 44 52 43 64 39 57 41 7 | 40 45 26 36 45 51 47 41 49 56 60 57 61 55 69 8 | 39 43 32 27 43 31 40 56 54 50 42 38 51 34 60 9 | 45 40 19 32 37 26 59 42 45 55 50 47 47 37 49 10 | 36 26 21 24 27 24 32 33 42 32 27 33 33 30 35 11 | 31 16 16 15 42 23 25 27 30 24 39 25 34 27 31 12 | 26 22 10 14 24 25 30 23 32 18 28 21 25 21 27 13 | 22 12 12 25 19 14 13 15 17 21 15 24 16 19 24 14 | 12 11 12 4 10 16 13 15 15 16 12 11 16 10 10 15 | 16 9 6 11 8 10 9 9 10 9 8 11 8 5 12 16 | 8 13 4 8 9 4 6 5 9 6 4 8 2 9 12 17 | 4 9 7 12 3 7 6 7 5 12 10 8 9 5 6 18 | 10 7 13 11 5 8 9 5 8 4 5 7 3 7 7 19 | 9 13 7 12 13 7 7 9 7 10 10 11 9 9 10 20 | 9 16 11 10 13 13 12 6 9 8 15 20 11 5 14 21 | 18 17 13 29 16 17 11 22 20 24 18 10 9 21 17 22 | 20 20 26 25 25 23 28 25 18 27 28 25 30 18 22 23 | 28 28 21 32 18 39 32 35 30 35 39 32 30 27 40 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2011 Gaspard De Wilde ---------------------------------------------------------------------- Observer: Franky Dubois Location: Langemark, Belgium (2 55' E, 50 54' N) Frequency: 49.990 MHz OT1KZG Transmitter: VVS beacon at Astrolab IRIS, Ypres, Belgium (2 54' 36" E, 50 49' 05" N), 50 W, carrier (no modulation), LHCP, upward beaming Antenna: vertical dipole and reflector, orthogonal to transmitter Receiver: HRO MRX-50 Computer: Pentium 4 - 1.8 GHz desktop Observing method: Spectrumlab | April 2011 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 64 49 51 51 49 56 67 62 60 54 72 68 75 64 54 1 | 66 51 59 61 59 56 73 88 61 73 72 74 74 53 62 2 | 63 62 58 46 67 57 55 59 55 62 63 68 61 49 57 3 | 45 48 52 61 49 65 61 60 48 46 51 60 53 50 45 4 | 56 41 58 61 48 45 61 45 54 53 46 71 44 48 45 5 | 49 37 46 58 59 53 43 53 42 45 42 48 48 55 39 6 | 49 49 59 49 44 55 43 46 34 35 57 61 48 38 45 7 | 42 47 48 52 53 54 53 51 57 64 60 53 57 56 38 8 | 40 34 54 58 68 53 63 42 44 55 58 58 56 52 67 9 | 55 35 49 85 55 57 54 54 47 76 56 42 66 68 56 10 | 46 30 54 68 52 48 58 50 36 70 53 59 60 50 43 11 | 30 40 42 54 54 59 54 46 45 44 58 49 59 33 45 12 | 23 52 56 62 46 44 54 35 31 40 42 59 48 42 52 13 | 38 31 38 44 36 33 57 37 35 37 43 36 44 30 44 14 | 21 24 18 38 34 46 25 28 25 38 36 34 33 31 30 15 | 21 26 25 30 21 19 19 24 25 24 28 28 23 26 26 16 | 18 15 20 16 10 13 24 19 20 21 17 16 26 13 17 | 15 15 8 8 23 21 17 16 17 21 18 13 10 15 18 | 12 18 22 8 13 21 10 21 12 22 23 11 12 12 19 | 21 16 15 13 14 18 19 22 31 28 16 24 26 13 20 | 18 25 30 20 20 26 21 28 28 27 30 29 37 21 28 21 | 28 36 37 32 35 29 44 29 52 37 34 38 31 31 40 22 | 43 33 47 38 43 43 57 52 43 40 46 48 41 46 43 23 | 55 35 53 51 47 64 72 55 56 70 65 53 55 59 65 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2011 | April 2011 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 45 60 67 78 69 65 67 72 68 74 63 57 69 61 55 1 | 59 49 51 74 56 67 62 81 55 69 76 51 60 55 70 2 | 58 58 70 78 59 57 62 89 82 50 53 74 58 56 65 3 | 47 60 68 56 67 63 63 63 75 81 58 72 40 68 72 4 | 68 52 60 57 69 72 56 56 65 61 71 67 66 50 99 5 | 70 47 58 50 58 71 62 56 66 95 74 58 65 78 64 6 | 66 55 59 78 71 73 65 73 58 63 85 81 54 70 67 7 | 51 54 65 81 77 60 71 70 84 102 92 78 70 86 83 8 | 49 62 53 91 61 74 79 76 76 86 80 71 55 71 65 9 | 60 52 61 68 72 80 70 66 65 83 84 60 49 64 70 10 | 58 48 51 72 83 69 41 48 68 74 80 65 60 60 68 11 | 63 44 50 64 52 65 62 43 68 68 73 77 70 69 73 12 | 46 40 49 59 53 44 68 47 53 60 64 57 61 66 78 13 | 40 34 42 52 47 52 61 42 48 61 45 61 55 61 64 14 | 32 14 42 49 45 43 38 36 42 31 44 45 31 60 51 15 | 24 18 34 40 35 37 32 16 18 41 29 29 19 31 18 16 | 14 11 23 24 19 18 25 19 21 19 22 21 19 32 17 | 16 21 18 13 18 18 13 22 27 24 29 18 16 17 18 | 18 10 22 14 23 18 25 24 11 20 14 19 15 16 17 19 | 17 12 25 20 20 15 23 16 28 17 25 18 24 13 27 20 | 29 21 31 30 24 25 37 23 35 27 27 32 19 29 42 21 | 24 24 40 48 28 35 39 40 40 42 28 37 46 42 35 22 | 35 40 56 52 56 40 54 42 61 48 55 49 48 57 42 23 | 61 63 62 62 60 63 68 50 51 59 47 47 56 64 62 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2011 Franky Dubois --------------------------------------------------------------------------- Observer: Karl-Heinz Gansel Location: Dingden (Germany) 51 46' N, 6 37' E Frequency: 49.990 MHz VVS beacon Antenna: 20-90 MHz T2FD, Az 170 deg, elev 0 deg Receiver: ICOM PCR-1000 preamp CATV LNA Computer: ASUS Dual AMD 2500 MHz 4GB RAM Software: home brewed PHP Script Colorgramme RMOB Lab v 2.3 | April 2011 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 9 5 13 4 14 5 11 12 7 8 13 14 6 6 9 1 | 7 2 9 9 6 7 12 11 14 15 18 17 8 7 12 2 | 6 10 12 8 10 10 17 12 13 9 19 19 6 11 14 3 | 2 8 12 18 12 14 12 17 13 17 5 14 7 3 9 4 | 7 6 11 17 16 16 7 25 9 14 15 7 8 5 8 5 | 5 11 17 15 15 15 11 12 11 14 17 13 10 11 10 6 | 9 8 20 12 7 12 12 23 19 15 21 10 4 7 8 7 | 8 4 13 14 7 12 18 13 10 12 17 8 9 7 11 8 | 5 19 9 8 9 15 6 15 8 4 16 10 12 3 4 9 | 7 7 6 11 7 7 11 10 13 9 7 4 1 4 3 10 | 5 2 10 5 8 6 6 5 4 13 11 2 1 1 3 11 | 1 9 6 9 5 6 3 6 8 6 7 6 2 5 8 12 | 5 8 7 10 7 6 5 4 6 12 5 2 1 2 4 13 | 4 8 3 11 4 7 5 5 2 9 8 2 3 4 4 14 | 1 11 3 10 5 8 5 8 9 6 4 1 3 2 8 15 | 5 5 6 12 4 14 6 3 4 11 10 2 2 2 5 16 | 1 7 6 7 10 6 6 19 7 3 6 1 0 1 4 17 | 6 3 2 5 3 4 4 6 9 3 2 0 1 7 10 18 | 6 3 5 2 2 4 5 8 2 3 4 2 2 5 3 19 | 4 4 6 6 3 3 3 11 13 5 3 2 5 7 4 20 | 4 11 9 8 5 15 11 13 9 7 10 3 6 11 8 21 | 10 12 13 13 11 21 15 8 13 10 14 8 10 9 11 22 | 15 13 14 12 15 18 25 22 18 16 20 4 6 10 16 23 | 9 11 10 14 21 19 14 11 16 14 13 7 3 11 11 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2011 | April 2011 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 11 8 18 14 16 13 8 7 10 11 5 13 10 5 12 1 | 16 16 16 14 13 6 8 8 17 14 19 11 5 12 12 2 | 10 7 10 20 12 15 5 5 9 15 18 23 13 4 11 3 | 10 7 11 14 14 12 12 5 19 12 13 12 15 13 7 4 | 7 5 12 12 12 9 5 2 20 21 12 6 14 12 11 5 | 4 4 12 19 16 15 7 1 20 22 15 17 14 16 15 6 | 7 6 15 13 20 18 5 8 10 13 14 18 16 14 13 7 | 8 10 14 14 20 14 4 6 20 17 19 22 9 13 13 8 | 5 13 9 4 8 8 7 2 5 21 15 18 16 25 18 9 | 6 7 14 5 3 6 3 1 14 16 14 17 12 10 12 10 | 9 4 4 9 2 4 1 6 15 14 15 18 9 16 11 11 | 2 8 9 6 9 7 7 2 12 16 6 16 19 15 15 12 | 3 4 12 7 7 5 5 1 19 18 5 18 12 7 17 13 | 8 5 3 11 5 2 5 6 12 13 8 18 11 10 11 14 | 7 4 5 2 3 4 2 6 13 9 11 12 9 7 13 15 | 5 4 5 4 4 2 6 1 4 4 9 14 6 5 13 16 | 3 6 6 9 5 5 9 3 6 10 4 5 3 6 11 17 | 4 4 3 3 4 5 4 2 6 4 8 7 7 11 7 18 | 10 6 8 4 4 1 6 0 2 5 5 3 5 3 4 19 | 7 8 11 4 4 1 2 6 11 6 7 5 7 6 3 20 | 11 5 8 2 4 4 8 4 10 3 6 23 3 3 8 21 | 15 19 10 16 9 12 2 10 8 10 9 11 8 13 9 22 | 12 14 14 9 13 13 6 22 8 7 7 7 4 13 8 23 | 12 13 8 14 8 11 6 13 13 10 11 6 6 13 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2011 Observer: Karl-Heinz Gansel Location: Dingden (Germany) 51 46' N, 6 37' E Frequency: 59.250 MHz Antenna: 20-90 MHz T2FD, Az 170 deg, elev 0 deg Receiver: Stabo XT 00 + preamp CATV LNA R2005200P12 Computer: ASUS Dual AMD 2500 MHz 4GB RAM Software: home brewed PHP Script Colorgramme RMOB Lab v 2.3 | April 2011 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h|143 127 114 120 123 135 92 128 98 125 115 18 106 142 135 1 |132 143 134 127 134 148 116 118 154 121 130 24 138 155 146 2 |154 148 144 140 142 143 139 132 103 122 128 83 143 136 132 3 |126 155 124 149 132 137 126 130 120 114 139 151 136 142 148 4 |137 183 141 135 132 123 165 126 109 133 137 146 156 152 170 5 |135 170 144 130 114 148 130 128 151 137 139 158 169 164 162 6 |158 208 157 38 145 153 128 160 127 149 188 174 163 175 185 7 |154 151 142 25 138 140 148 182 134 158 183 168 167 182 196 8 |155 135 131 33 159 135 153 161 158 156 146 148 190 172 164 9 |149 123 111 32 147 143 123 137 177 139 158 155 171 170 152 10 |131 137 116 79 115 112 129 134 136 134 157 140 158 135 146 11 |123 103 104 48 114 116 123 123 139 126 130 126 134 132 113 12 | 91 83 70 95 118 97 83 85 98 91 96 121 113 118 99 13 | 66 72 56 58 74 70 66 59 63 53 76 97 85 100 67 14 | 38 36 35 37 46 46 32 47 42 54 35 53 44 43 38 15 | 23 19 22 26 32 25 20 24 28 25 28 35 21 22 28 16 | 21 14 16 9 13 14 17 14 18 15 10 8 23 25 11 17 | 15 12 14 15 18 16 12 6 18 15 19 18 21 24 23 18 | 17 17 16 19 28 17 25 19 21 20 23 19 19 22 17 19 | 45 29 30 37 32 31 44 39 31 36 33 36 32 33 34 20 | 76 44 44 42 37 45 56 47 36 51 59 47 49 45 58 21 | 90 77 60 64 69 56 61 64 80 77 51 71 62 71 66 22 |113 83 86 81 75 54 93 86 85 82 34 79 93 75 54 23 |149 81 100 98 113 72 92 100 98 117 23 92 123 96 89 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2011 | April 2011 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h|101 151 112 96 91 124 138 109 93 101 96 74 94 80 110 1 |118 117 115 103 106 121 152 116 140 112 118 116 116 107 137 2 |114 113 132 120 101 127 141 139 130 99 128 124 113 121 160 3 |138 121 116 127 121 137 138 119 132 121 102 108 124 128 174 4 |136 136 123 153 137 145 128 133 120 116 119 134 119 148 172 5 |161 171 142 172 133 164 145 172 138 153 133 120 138 169 185 6 |176 147 165 157 155 175 168 169 147 168 139 148 168 184 173 7 |176 149 156 149 188 198 185 156 172 157 167 159 159 200 165 8 |174 147 152 174 168 169 172 142 140 151 170 159 157 193 175 9 |141 140 146 157 142 155 143 166 153 160 144 121 144 171 165 10 |161 99 144 155 143 162 145 155 137 127 127 137 138 165 160 11 |143 92 106 124 142 136 116 137 132 120 143 99 111 137 168 12 | 92 66 88 111 94 100 127 102 106 93 87 95 94 95 127 13 | 71 49 73 67 56 67 73 62 61 58 56 62 50 80 72 14 | 42 28 34 43 36 48 25 31 45 38 31 54 33 40 35 15 | 17 12 25 23 25 21 25 17 15 28 17 15 25 22 23 16 | 9 8 26 15 9 11 18 11 15 12 13 10 13 25 23 17 | 24 6 18 17 14 14 13 13 17 10 14 15 13 17 16 18 | 17 15 23 19 19 20 27 21 19 12 15 19 18 14 16 19 | 26 19 21 26 24 20 32 26 30 25 24 29 35 22 26 20 | 39 38 37 33 28 42 53 38 39 42 29 33 37 29 47 21 | 62 69 62 66 58 57 63 57 44 47 33 46 43 47 69 22 | 68 80 79 84 80 76 77 66 58 67 61 54 57 67 70 23 |110 90 80 94 88 109 95 77 80 95 61 71 68 77 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2011 Karl-Heinz Gansel ---------------------------------------------------------------------- Observer: Luc Gobin Location: Mechelen, Belgium (4 28' 57" E, 51 00' 44" N) Frequency: 49.990 MHz OT1KZG Transmitter: VVS beacon at Astrolab IRIS, Ypres, Belgium (2 54' 36" E, 50 49' 05" N), 50 W, carrier (no modulation), LHCP, upward beaming Antenna: Diamond HB9CV, elev 37 deg, azimuth 81 deg (W) Receiver: HRO MRX-50 Computer: Compaq portable Observing method: manual count of Speclab recordings | April 2011 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 39 52 40 52 79 87 52 1 | 41 36 68 41 106 80 50 2 | 51 47 38 50 105 75 35 3 | 34 40 49 52 89 110 50 4 | 30 34 51 37 57 67 52 5 | 26 58 30 44 52 66 48 6 | 25 38 21 28 45 32 47 7 | 32 54 48 36 43 38 42 8 | 32 35 43 38 48 50 59 9 | 22 36 23 23 32 40 41 10 | 25 17 27 34 42 38 28 11 | 6 5 2 2 6 0 17 12 | 11 3 9 1 0 0 31 13 | 17 7 10 5 9 1 21 14 | 16 19 1 13 22 10 17 15 | 8 17 2 8 13 12 16 16 | 13 12 4 10 17 8 8 17 | 15 11 6 10 8 13 18 | 15 8 6 9 16 19 | 11 6 9 19 19 20 | 14 18 29 17 13 21 | 22 24 21 24 17 22 | 29 34 47 43 23 23 | 38 51 63 60 37 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2011 Luc Gobin --------------------------------------------------------------------------- Observer: Mike Otte Location: Pearl City, IL, USA (42 20' N, 90 W) Frequency: 55.2595 MHz Antenna : 5 elem Yagi, az 290 deg, elev 60 deg, mystarband preamplifier Receiver: Alinco DX70 Computer: Compaq 2266 Observing method: Spectrum Lab Colorgramme RMOB Lab v 2.3 Total Counts | April 2011 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 81 72 80 71 83 83 60 70 70 60 94 91 113 79 112 1 | 84 90 96 67 102 93 71 90 85 90 102 118 115 120 116 2 |108 103 98 78 100 98 108 107 90 99 99 121 116 123 147 3 |136 121 117 98 119 118 119 142 121 132 104 141 149 150 158 4 |159 140 155 141 164 140 146 145 133 192 190 168 181 173 184 5 |162 171 194 118 160 153 181 146 152 192 164 205 191 192 212 6 |175 180 176 113 154 169 171 151 199 210 177 181 198 204 194 7 |192 133 184 151 175 178 189 171 158 213 191 189 220 212 230 8 |178 168 161 143 165 168 174 170 171 199 175 204 177 212 224 9 |186 184 166 169 181 180 178 182 189 216 200 214 207 209 227 10 |173 118 124 135 144 138 149 185 147 168 200 203 186 205 204 11 |171 133 151 137 133 145 151 189 152 206 197 190 181 207 196 12 |163 152 159 152 135 134 144 185 197 185 190 203 208 216 218 13 |193 167 177 164 164 171 168 172 187 212 205 234 224 221 219 14 |215 177 168 183 193 197 189 191 190 217 213 235 221 245 224 15 |198 181 196 173 187 214 168 192 213 237 201 241 228 222 237 16 |210 156 200 174 195 182 173 199 197 251 207 231 230 230 240 17 |180 165 165 201 181 186 173 199 166 203 210 214 208 232 225 18 |165 167 167 210 172 179 147 190 151 190 184 185 192 199 250 19 |107 132 131 124 116 135 106 141 123 178 160 154 137 178 184 20 |102 123 108 110 102 104 105 102 108 126 124 135 124 156 157 21 | 97 85 84 94 93 91 113 83 73 127 129 109 130 142 160 22 | 78 86 82 76 85 79 105 86 79 89 117 118 102 135 138 23 | 77 72 87 82 90 89 78 78 74 92 100 99 95 123 111 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2011 | April 2011 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h|123 124 127 86 89 91 96 44 106 120 122 104 221 190 179 1 |136 127 113 50 106 104 81 89 117 100 169 114 66 195 197 2 |145 157 147 141 139 115 82 121 155 107 137 143 97 192 198 3 |173 183 165 169 177 161 96 134 157 157 170 161 167 232 232 4 |203 189 218 161 190 178 101 151 199 168 176 177 42 235 242 5 |197 217 212 198 196 197 123 170 236 194 192 212 252 251 242 6 |227 216 212 207 203 188 132 193 221 214 216 207 245 248 251 7 |186 235 204 232 218 211 129 172 208 221 206 240 253 248 264 8 |199 214 209 195 187 212 131 217 182 214 195 239 245 258 254 9 |217 230 221 235 202 205 184 212 193 228 213 219 248 246 262 10 |200 206 201 193 198 228 154 181 168 217 205 215 265 247 236 11 |188 226 186 182 193 189 147 187 194 203 220 218 255 240 237 12 |207 251 213 205 226 206 154 188 196 217 202 223 228 213 246 13 |242 246 203 223 228 224 166 217 209 232 240 220 236 181 206 14 |238 243 222 212 221 238 191 231 209 233 242 217 210 174 214 15 |263 231 237 238 204 224 165 229 222 234 223 243 250 210 189 16 |240 235 232 233 209 225 170 240 204 242 210 179 192 187 212 17 |241 191 220 241 190 218 181 214 198 211 240 142 236 181 235 18 |194 189 237 213 190 195 129 202 171 208 193 50 254 230 229 19 |177 153 193 144 163 141 98 149 146 157 175 210 242 252 220 20 |129 138 152 123 149 133 76 138 126 146 159 270 230 212 214 21 |114 109 131 119 126 117 72 120 116 148 137 306 212 221 195 22 |102 99 134 110 127 138 58 110 120 121 117 300 221 220 181 23 |122 104 118 105 108 106 59 100 116 137 101 281 208 176 186 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2011 Note: . re-adjustment of receiver settings done after inadverted changes on April 17. Mike Otte --------------------------------------------------------------------------- Observer: Steve Roush Location: Apache Junction AZ, USA (33 23' N 111 32' W) Receiver: Alinco DX70 Antenna: 4 element Log Periodic Array, Az 160 deg, elev 15 deg Frequency: 61.239 MHz USB Transmitter: Multiple 100 kW Computer: Dell Dimension Spectrum Lab v2.7 Observing method: Spectrum Lab v2.7 Colorgramme RMOB Lab v 2.3 | April 2011 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 22 7 10 13 2 9 13 7 10 7 10 9 19 6 22 1 | 17 14 11 10 10 14 15 8 15 15 12 18 14 10 20 2 | 22 14 13 16 20 12 16 12 20 17 8 16 23 13 18 3 | 20 30 13 17 24 20 22 22 16 24 21 20 11 23 22 4 | 27 31 25 16 17 25 16 22 16 26 22 19 42 14 37 5 | 31 15 28 22 19 24 16 19 18 22 21 28 35 17 28 6 | 16 23 21 17 25 14 7 23 18 17 13 18 25 11 23 7 | 25 13 19 25 18 28 18 25 19 34 23 19 33 18 19 8 | 21 18 20 16 22 26 22 30 22 29 27 29 37 20 32 9 | 25 27 22 23 25 32 30 28 23 41 29 26 44 28 34 10 | 37 35 26 24 30 23 28 29 31 40 28 27 40 22 21 11 | 17 23 23 27 27 28 26 28 32 49 29 30 38 36 39 12 | 28 30 20 30 23 27 33 37 35 52 37 41 45 24 36 13 | 31 30 32 31 32 33 39 37 36 49 37 42 51 39 54 14 | 32 20 21 27 33 32 38 32 39 33 30 40 46 36 44 15 | 28 30 27 35 25 35 24 35 22 26 23 27 36 24 29 16 | 16 23 20 18 21 34 14 17 25 16 36 28 34 13 25 17 | 14 8 29 18 16 18 11 22 29 11 17 23 14 13 16 18 | 8 17 21 15 16 11 12 11 26 19 11 12 17 16 8 19 | 16 20 22 2 12 5 23 27 22 24 12 21 16 21 19 20 | 16 31 13 0 18 24 12 25 24 21 22 22 26 18 27 21 | 17 28 23 0 11 19 20 27 25 25 12 17 18 15 22 22 | 16 13 13 23 12 13 17 17 19 20 27 27 20 26 21 23 | 8 12 14 21 13 16 19 12 16 15 12 23 10 10 10 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2011 | April 2011 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 9 8 25 17 16 2 6 20 16 6 19 20 22 16 16 1 | 12 13 11 9 5 19 14 13 15 15 15 12 14 18 0 2 | 14 18 15 11 1 13 16 25 14 18 25 24 32 14 0 3 | 19 16 22 30 0 21 18 23 22 22 26 12 28 11 0 4 | 21 18 19 28 23 19 25 17 25 26 33 30 36 17 0 5 | 15 26 18 21 20 14 14 22 18 33 23 34 24 24 19 6 | 17 17 13 25 14 13 19 32 22 22 17 18 27 15 13 7 | 26 24 14 20 20 24 18 23 28 36 34 31 29 27 15 8 | 32 28 34 24 27 28 31 32 38 36 42 33 33 22 15 9 | 32 33 28 19 20 31 25 46 34 37 41 30 28 22 19 10 | 19 35 33 27 35 28 23 42 38 46 27 37 35 33 40 11 | 36 34 16 54 35 28 38 47 50 42 44 51 23 27 36 12 | 39 38 20 36 33 35 37 52 50 53 47 51 40 37 39 13 | 33 46 37 48 46 35 40 46 48 58 46 61 51 42 34 14 | 40 39 41 39 47 44 34 47 44 51 48 57 28 40 35 15 | 41 25 31 32 28 31 36 46 38 38 27 27 26 26 25 16 | 16 26 23 13 28 18 25 37 39 29 25 18 11 18 25 17 | 19 21 18 14 12 12 16 21 26 15 14 17 1 22 16 18 | 18 21 17 15 17 14 23 22 22 17 18 17 16 21 15 19 | 19 24 18 18 19 16 26 35 25 19 24 30 7 20 18 20 | 15 32 17 24 27 25 28 34 22 36 28 46 27 26 21 21 | 25 25 30 25 22 31 28 25 28 30 37 35 36 27 20 22 | 19 26 25 19 19 15 26 23 20 24 42 29 16 22 20 23 | 15 12 20 12 13 19 19 18 17 28 21 25 23 15 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2011 Steve Roush --------------------------------------------------------------------------- Observer: Wayne Sanders Location: Prince George BC (53 58' N 123 05' W elevation 666 meters) Receiver: ICOM PCR-1000 CW mode Sensitivity: 0.32 uV for 10 dB S/N for CW mode (factory spec) Antenna: Full Wave Horizontal Loop 9 foot high Frequency: 61.240 MHz Transmitter: Multiple 100 kW Computer: Dell 3.2 GHz 2GB Ram Windows XP SP 3 Data sampling system: Spectrum Lab Meteor reflections/hour | April 2011 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 43 44 47 54 58 49 60 66 51 56 67 61 44 57 65 1 | 43 18 37 60 51 44 55 41 36 42 57 40 21 51 56 2 | 51 50 49 64 55 61 65 47 42 58 58 72 50 44 65 3 | 74 55 55 79 83 78 67 53 53 64 76 75 51 75 76 4 |101 64 67 73 84 92 96 78 76 73 91 85 73 93 101 5 | 88 96 84 125 110 107 139 123 103 89 123 100 104 103 130 6 |118 114 122 151 162 147 178 145 145 129 141 166 74 147 134 7 |175 137 142 165 175 190 201 189 168 163 155 83 119 173 180 8 |192 149 177 193 168 206 228 209 189 185 178 111 153 194 209 9 |193 175 195 182 180 200 221 200 214 167 156 67 125 224 211 10 |186 196 239 233 198 198 245 206 198 208 168 122 120 201 215 11 |207 164 195 219 188 166 232 252 216 199 166 192 170 228 262 12 |157 166 204 214 194 204 207 235 220 184 178 125 153 192 234 13 |162 173 217 186 236 130 226 225 213 219 180 29 172 187 239 14 |214 230 223 209 192 235 267 221 228 214 167 103 195 209 243 15 |213 248 223 211 235 182 271 252 267 184 189 179 216 224 242 16 |228 214 233 176 214 146 242 257 236 197 172 184 235 229 230 17 |184 188 218 163 216 197 237 240 228 190 196 156 208 244 223 18 |174 171 211 190 197 217 205 199 202 183 199 175 234 234 223 19 |163 123 153 188 183 241 165 211 171 174 209 157 212 202 230 20 |155 128 158 171 176 162 154 182 160 182 176 156 176 150 193 21 |124 118 142 131 137 144 128 140 135 145 135 119 150 126 144 22 | 86 93 109 100 118 122 108 104 8 107 88 83 132 112 114 23 | 69 63 84 96 83 91 74 66 63 73 77 67 84 95 102 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2011 | April 2011 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 70 47 59 53 61 54 76 86 64 46 66 58 81 54 50 1 | 47 45 41 41 46 54 57 57 60 51 52 59 54 49 41 2 | 63 74 62 74 64 71 63 67 48 46 62 61 54 67 49 3 | 71 70 86 77 70 81 82 89 81 83 68 74 77 77 53 4 | 87 90 96 99 82 98 107 103 102 93 87 106 89 101 93 5 |107 118 135 123 109 121 147 113 110 117 130 116 105 124 91 6 |149 156 161 189 167 162 176 149 169 129 164 153 159 133 110 7 |202 194 207 239 200 211 208 199 195 194 197 186 203 179 111 8 |219 216 225 222 254 248 245 224 197 206 194 199 218 197 109 9 |226 245 223 214 204 235 266 232 234 189 202 203 219 201 139 10 |227 219 244 237 253 258 254 240 215 206 230 206 225 220 121 11 |222 230 229 248 287 270 271 250 222 172 218 268 233 193 152 12 |247 268 234 276 275 247 316 280 261 228 235 246 260 218 182 13 |245 247 215 248 265 291 285 244 274 247 263 289 267 276 178 14 |253 285 251 286 286 292 258 287 295 265 263 314 288 302 241 15 |293 284 312 315 303 313 310 299 276 276 289 322 282 312 235 16 |261 76 273 264 301 296 284 270 263 280 276 280 323 354 254 17 |249 301 273 315 335 284 260 272 272 269 298 297 298 218 18 |242 264 289 259 252 288 255 255 287 290 290 280 276 198 19 |218 201 232 173 245 257 235 229 257 265 261 71 226 172 20 |195 185 225 162 253 231 186 231 213 223 222 210 201 151 21 |191 86 137 180 169 202 209 179 170 185 190 214 192 168 112 22 |121 126 113 152 141 153 143 131 125 140 147 167 148 135 77 23 | 74 110 71 77 99 87 104 72 75 84 105 110 125 85 42 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2011 Notes: -- = System Down Es = Sporadic E Wayne Sanders --------------------------------------------------------------------------- Observer: Andy Smith Location: Tavistock, Devon, UK (50 33' N, 4 08' W) Receiver: 2 x Icom PCR-1000 Antenna: 1/2 wave vertical Frequency: 48.250 and 55.250 MHz Computer: Athlon 64 dual core 2.4GHz, 1 GB RAM, Win XP Pro running SpecLab Observing method: Colorgramme RMOB Lab v 2.3 Automatic counting using Spectrum Lab v2.5 Colorgramme RMOB Lab v 2.3 Sporadic E automatically suppressed from counts! | April 2011 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 57 51 64 71 42 31 55 42 1 | 79 53 80 77 77 18 78 60 2 | 81 76 87 84 82 35 63 69 3 | 89 60 72 123 48 33 73 65 4 | 68 71 81 71 31 34 75 60 5 | 62 72 62 51 29 31 75 64 6 | 52 73 63 46 15 27 73 3 55 7 | 70 78 80 53 16 27 66 65 73 8 | 49 61 38 32 19 26 28 75 85 9 | 26 99 149 57 22 26 67 102 10 | 26 107 125 103 45 35 120 199 92 11 | 19 96 131 72 42 39 94 77 12 | 49 79 109 67 23 124 124 71 13 | 56 87 87 97 32 109 111 55 14 | 42 61 73 85 51 93 78 31 15 | 10 47 79 62 23 49 45 24 16 | 3 19 56 27 7 30 27 23 17 | 5 10 5 16 10 14 28 20 18 | 7 22 16 12 13 9 9 15 19 | 9 5 15 11 12 14 13 18 20 | 23 13 22 11 6 14 18 13 21 | 9 25 13 24 19 12 32 15 22 | 24 21 16 20 28 33 17 12 23 | 35 16 53 20 25 42 44 26 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2011 | April 2011 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 57 52 98 66 58 50 98 51 58 52 43 43 67 53 1 | 79 50 102 80 54 82 105 68 72 53 51 63 80 83 2 | 97 77 102 81 61 72 117 90 55 58 75 55 85 70 3 | 109 76 132 104 75 101 133 82 62 63 73 77 92 86 4 | 114 87 109 104 80 92 116 83 59 70 72 73 102 98 5 | 100 106 105 97 75 108 122 79 75 60 76 78 126 98 6 | 105 80 91 95 111 90 42 27 33 79 78 75 111 97 7 | 79 120 102 96 91 92 91 13 88 92 109 84 117 8 | 101 143 134 139 91 117 131 45 119 107 105 137 143 9 | 144 72 90 156 86 107 133 114 99 96 131 150 115 10 | 154 152 142 162 35 137 136 56 91 89 126 124 65 11 | 8 138 142 182 174 105 146 121 91 97 102 103 129 126 12 |124 142 156 140 142 92 114 131 108 108 93 127 129 133 13 |146 117 129 137 158 76 129 107 130 112 113 108 146 130 14 |131 111 111 123 114 76 63 102 104 90 85 89 113 115 15 | 52 64 61 74 51 40 43 71 37 56 47 61 66 73 16 | 42 32 45 54 9 21 49 37 31 32 48 35 37 30 17 | 22 16 16 30 0 15 23 22 9 12 9 33 27 17 18 | 13 12 13 14 13 3 15 8 10 13 17 20 23 10 19 | 12 10 16 15 7 0 23 8 15 9 13 20 16 15 7 20 | 17 12 15 10 1 3 12 9 21 12 6 17 9 13 8 21 | 37 18 26 23 15 11 18 14 15 5 24 25 14 15 14 22 | 22 38 29 27 25 38 39 17 27 14 21 23 29 21 22 23 | 43 42 52 43 34 43 72 36 28 26 20 34 53 29 30 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2011 Andy Smith ---------------------------------------------------------------------- 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' 36" E, 50 49' 05" N), 50 W, carrier (no modulation), LHCP, upward beaming Antenna: Diamond HB9CV, elev 45 deg, azimuth 90 deg (W), below roof cam Receiver: HRO MRX-50 Computer: Toshiba Satellite 1555CDS, Win98 Observing method: manual count of Speclab recordings | April 2011 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 53 34 57 46 63 56 50 62 44 49 47 43 47 62 1 | 59 26 54 44 52 45 53 55 52 49 55 57 64 53 2 | 49 47 69 46 49 44 51 60 51 48 55 52 47 52 3 | 55 52 40 63 55 53 57 52 42 43 44 44 43 49 4 | 44 43 37 37 49 48 40 56 43 37 50 43 37 62 5 | 47 51 54 34 31 52 45 46 44 54 37 38 44 44 6 | 36 34 39 44 49 53 43 43 40 42 37 38 30 50 7 | 43 33 47 42 45 44 37 48 42 55 35 53 47 53 8 | 49 18 26 51 46 52 34 49 43 32 38 56 39 38 9 | 35 32 20 38 47 39 40 48 29 16 38 32 36 28 10 | 36 33 27 49 28 33 30 42 18 28 29 37 33 32 11 | 39 48 26 38 44 45 31 45 18 22 41 30 34 43 12 | 40 38 20 34 33 37 18 36 31 16 26 26 36 32 13 | 23 37 25 29 29 37 29 21 18 16 31 36 25 30 14 | 20 35 18 27 16 30 22 27 18 7 23 25 21 15 | 24 23 20 22 23 31 21 16 6 10 23 24 22 16 | 15 22 22 25 16 20 14 18 15 12 15 11 9 17 | 10 14 20 16 21 12 18 7 8 12 13 23 11 18 | 8 10 11 15 15 17 9 9 9 9 11 21 14 10 19 | 10 15 15 22 17 19 19 15 20 14 14 16 23 12 20 | 12 21 26 25 24 31 16 15 18 18 21 25 14 22 21 | 23 34 27 34 41 39 24 12 26 23 31 26 19 24 22 | 30 32 33 32 30 46 26 24 38 40 32 37 24 38 23 | 34 50 56 43 55 55 46 43 43 53 45 46 52 35 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2011 | April 2011 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 51 68 55 63 58 59 44 63 83 68 45 60 66 63 1 | 48 65 49 58 64 56 50 71 58 70 65 57 61 54 2 | 50 47 54 60 47 62 54 73 61 51 59 58 57 56 3 | 48 49 43 53 50 65 64 74 49 53 49 58 48 61 4 | 38 54 70 47 63 56 68 66 51 58 67 63 59 60 5 | 55 45 51 51 56 84 62 76 53 64 56 78 57 60 6 | 60 40 62 54 54 59 83 74 62 69 75 56 52 47 7 | 53 65 58 54 61 83 80 71 59 84 87 85 79 53 8 | 28 46 55 58 49 68 68 69 37 70 63 77 59 41 9 | 28 33 45 51 51 59 64 57 52 36 77 59 62 52 35 10 | 29 41 56 47 43 48 50 62 30 67 56 57 58 34 11 | 26 28 45 38 46 64 48 42 24 67 54 46 56 30 12 | 17 31 38 41 37 56 39 54 27 55 44 41 45 31 13 | 26 32 42 36 37 38 31 28 37 43 40 50 23 14 | 20 24 28 32 26 21 30 23 37 27 16 15 | 18 23 24 34 28 20 26 23 17 20 16 | 12 24 21 25 18 10 26 16 14 19 17 | 8 27 23 24 17 15 21 12 12 9 18 | 14 15 34 18 12 8 22 8 14 8 19 | 13 29 22 21 20 12 21 12 17 15 20 | 21 29 31 19 14 29 31 28 14 22 21 | 28 33 37 44 31 24 20 28 31 23 25 38 22 | 40 45 42 38 40 34 34 40 53 24 23 43 23 | 49 55 33 52 45 59 56 67 53 48 42 44 62 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2011 Chris Steyaert ---------------------------------------------------------------------- Observer: Dirk Van Hessche Location: Appelterre-Eichem, Belgium (3 59' E, 50 49' N) Frequency: 49.990 MHz OT1KZG Transmitter: VVS beacon at Astrolab IRIS, Ypres, Belgium (2 54' 36" E, 50 49' 05" N), 50 W, carrier (no modulation), LHCP, upward beaming Antenna: 2 element, az 90 deg, elev 69 deg Receiver: AR8600 Computer: Pentium 5 Observing method: HROFFT, Colorgramme for RMOB v 2.3 | April 2011 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 40 64 52 37 41 50 58 54 1 | 37 46 42 43 45 49 53 41 2 | 45 54 59 63 62 54 55 52 3 | 35 53 52 58 59 52 61 45 43 4 | 43 48 42 36 31 49 42 43 51 5 | 42 35 38 34 40 45 36 53 38 6 | 49 31 36 34 39 46 42 42 40 7 | 37 32 34 36 45 54 46 47 8 | 33 35 41 43 37 48 40 47 9 | 20 36 32 53 38 40 26 31 10 | 47 32 37 38 39 29 32 22 11 | 25 32 23 42 32 26 15 27 12 | 16 19 43 45 35 21 21 16 13 | 19 20 27 27 19 15 15 10 14 | 17 13 22 28 18 15 13 13 15 | 16 11 12 9 10 13 13 6 16 | 7 7 10 5 8 10 12 19 17 | 9 12 14 7 10 12 12 9 18 | 7 18 12 13 9 14 16 6 19 | 10 10 16 9 16 10 15 19 20 | 18 22 19 20 22 25 22 18 21 | 27 23 21 28 32 26 34 18 22 | 24 42 37 32 28 36 41 30 23 | 37 30 36 33 44 46 36 40 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2011 | April 2011 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 48 47 51 54 51 56 47 46 49 39 45 51 43 1 | 40 58 62 45 52 72 39 44 53 43 52 46 38 2 | 34 50 44 65 45 55 39 46 46 48 43 41 54 3 | 37 50 44 63 43 48 56 39 52 50 50 58 45 4 | 36 48 52 59 56 56 56 49 52 49 50 52 57 5 | 35 43 45 63 59 58 59 48 55 48 51 56 53 6 | 31 51 33 57 44 51 60 60 63 53 54 72 44 7 | 45 60 59 64 51 57 63 49 62 60 68 52 62 8 | 42 53 41 41 44 53 58 52 47 49 38 38 45 9 | 28 40 37 26 32 49 44 40 33 31 36 36 45 10 | 18 25 30 26 39 20 25 30 38 37 27 42 30 26 11 | 17 23 26 19 17 18 28 15 33 19 27 36 19 27 12 | 19 12 21 22 16 14 17 12 33 20 23 30 30 36 13 | 17 14 25 23 25 20 13 11 18 8 26 32 17 27 14 | 17 5 12 18 15 8 11 10 18 10 20 21 15 20 15 | 7 5 10 15 9 11 13 9 12 11 10 7 13 10 16 | 17 9 8 12 8 9 7 14 9 6 8 13 10 10 17 | 12 9 8 11 15 14 9 7 10 6 12 13 6 9 18 | 14 15 10 13 12 16 9 12 13 9 16 12 15 18 19 | 16 13 14 16 22 20 13 9 17 19 12 15 24 19 20 | 22 18 21 16 18 24 18 25 22 26 30 16 13 19 21 | 26 19 34 22 38 32 24 25 29 23 27 16 28 26 22 | 39 34 32 35 38 40 37 29 38 34 19 36 41 29 23 | 31 42 39 42 50 60 29 35 38 31 37 39 50 37 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2011 Dirk Van Hessche ---------------------------------------------------------------------- Observer: Maarten Vanleenhove Location: Leest, Belgium (4 23' E, 51 00' N) Frequencies: 49990 kHz Transmitter: VVS beacon at Astrolab IRIS, Ypres, Belgium (2 55' E, 50 49' N), 50 W, carrier (no modulation), LHCP, upward beaming Antenna: 2 element Yagi Diamond, az 80 deg (W), elev 45 deg Receiver: HRO MRX-50 Computer: Dual Core AMD, 2 GB RAM Observing method: Spectrumlab, automatic counting, Colorgramme RMOB Lab v 2.3 | April 2011 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 14 23 24 15 21 22 29 26 17 20 21 17 32 14 14 1 | 20 4 19 23 21 17 33 17 22 32 17 32 21 30 17 2 | 22 19 29 23 40 31 16 23 23 16 21 24 19 21 25 3 | 18 24 21 22 26 32 29 18 21 20 17 34 16 22 22 4 | 25 27 26 19 21 23 19 17 20 32 15 24 16 12 24 5 | 25 10 16 20 24 16 8 10 7 2 5 10 6 12 7 6 | 19 7 7 7 5 3 3 4 3 5 7 13 2 10 3 7 | 6 5 17 6 5 5 11 3 4 4 8 9 7 5 7 8 | 3 9 6 7 6 2 4 5 3 7 2 3 4 7 9 | 0 2 4 0 3 2 5 4 2 5 8 3 7 3 2 10 | 2 3 6 0 3 2 5 5 1 3 2 4 3 2 3 11 | 0 3 1 1 0 6 2 5 4 3 4 3 6 3 2 12 | 2 1 7 8 10 5 2 2 1 4 3 5 8 4 5 13 | 8 2 2 4 0 1 6 0 2 1 5 4 2 5 4 14 | 2 3 2 1 2 2 2 2 2 0 2 2 5 2 1 15 | 2 1 3 1 3 2 4 0 1 3 2 0 1 0 5 16 | 2 2 4 2 3 5 1 5 4 1 3 1 3 2 2 17 | 3 3 2 0 6 1 5 1 2 5 2 2 1 0 0 18 | 6 2 10 9 6 4 4 7 6 1 10 8 5 8 4 19 | 7 9 11 8 7 7 4 22 7 12 9 6 9 2 3 20 | 10 8 11 10 7 10 11 11 8 7 10 11 8 4 6 21 | 10 18 14 21 16 13 19 16 10 17 14 13 22 3 12 22 | 12 24 16 17 13 19 14 14 16 13 17 20 17 6 16 23 | 15 20 19 22 23 23 15 25 19 14 18 21 30 11 18 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2011 | April 2011 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 16 13 18 24 17 22 24 22 18 26 21 12 15 24 1 | 26 14 22 23 28 13 17 31 26 25 23 23 26 25 2 | 17 9 16 28 22 23 17 23 19 19 22 21 13 22 3 | 20 20 15 24 18 29 23 17 24 22 17 25 23 33 4 | 19 8 18 22 19 29 24 20 23 18 21 22 22 29 5 | 5 5 3 5 4 12 15 10 9 5 8 4 24 13 6 | 6 2 4 6 3 11 3 6 14 9 7 2 22 16 7 | 2 4 2 6 4 5 2 13 3 13 4 14 28 6 8 | 2 4 3 1 4 6 6 8 6 5 3 3 12 4 9 | 3 2 2 2 5 3 1 6 3 7 5 4 10 6 10 | 7 4 4 3 3 3 5 8 4 3 4 6 4 1 11 | 5 5 6 5 8 2 1 0 3 7 7 4 1 5 12 | 3 5 4 10 3 2 2 2 6 3 7 5 0 1 13 | 6 4 4 3 4 3 7 6 5 3 0 2 6 3 14 | 5 4 2 1 2 0 6 3 3 3 1 8 4 1 15 | 2 3 2 1 1 2 2 3 2 2 0 7 2 4 16 | 5 3 4 1 2 0 6 3 1 0 2 2 2 1 17 | 7 1 5 3 2 2 10 2 0 0 4 3 5 4 18 | 2 4 6 4 1 6 12 3 2 2 2 11 1 5 19 | 9 6 7 7 5 6 6 16 8 5 9 9 6 20 | 6 7 7 2 2 10 16 7 11 8 12 11 3 3 21 | 10 15 11 13 18 13 16 19 14 25 15 10 8 8 22 | 12 21 16 11 15 15 30 19 17 23 14 19 13 9 23 | 10 14 18 17 13 27 18 15 17 19 22 21 9 9 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2011 Maarten Vanleenhove --------------------------------------------------------------------------- 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' 36" E, 50 49' 05" 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 harddisks for further analysis. Only overdense meteor reflections are counted manually and used for statistics] Duration >= 2 seconds | April 2011 UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ---+----------------------------------------------------------- 0h| 1 1 0 1 2 1 1 3 1 2 3 3 2 1 4 1 | 1 1 1 1 1 0 1 0 3 0 1 1 1 1 5 2 | 1 2 2 3 5 0 1 2 1 2 2 1 1 0 2 3 | 1 1 4 3 3 2 1 3 2 0 2 4 3 4 3 4 | 4 2 1 1 2 3 2 0 2 3 2 1 2 3 3 5 | 4 1 0 6 4 6 1 7 2 4 1 4 6 5 0 6 | 0 3 2 1 3 0 3 8 0 3 2 7 2 6 5 7 | 0 2 2 0 1 0 2 2 3 2 0 4 2 2 5 8 | 1 0 2 1 2 3 1 3 4 2 3 4 0 7 6 9 | 1 2 1 3 1 4 6 1 1 4 3 3 1 2 1 10 | 3 1 0 1 1 4 2 1 1 1 3 3 2 1 1 11 | 1 4 1 1 1 0 0 3 0 1 1 1 3 5 4 12 | 0 0 1 3 3 1 1 1 0 0 0 2 1 0 2 13 | 0 0 0 2 1 0 2 0 1 1 1 2 0 2 0 14 | 0 0 0 2 0 0 1 0 0 0 1 1 1 0 2 15 | 1 0 1 0 0 0 1 1 0 0 0 0 1 0 1 16 | 0 1 1 0 0 0 0 1 1 0 0 0 1 0 0 17 | 0 0 1 0 0 0 0 0 0 1 1 0 0 0 0 18 | 0 0 0 0 1 0 0 0 0 1 0 0 1 0 0 19 | 0 1 0 1 0 1 0 2 0 0 0 0 1 0 1 20 | 1 0 1 0 0 1 0 0 0 0 2 1 1 0 0 21 | 0 3 0 0 1 0 4 0 0 1 1 2 0 0 2 22 | 1 3 2 1 0 1 2 1 0 2 3 2 1 0 0 23 | 1 1 1 1 2 0 2 0 1 2 2 1 2 1 3 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2011 | April 2011 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 2 3 2 1 5 4 3 9 3 4 2 0 1 1 2 1 | 0 5 0 3 1 4 3 10 4 0 2 2 3 2 2 2 | 0 0 3 2 1 3 9 11 6 3 3 0 1 3 3 3 | 3 1 1 0 3 6 4 10 4 2 2 2 1 3 0 4 | 6 5 6 4 5 6 6 6 6 4 5 1 5 3 5 5 | 4 2 4 4 2 5 8 7 9 6 3 1 5 2 9 6 | 2 5 3 5 2 4 9 1 4 5 3 2 2 3 6 7 | 1 3 1 0 5 4 3 5 6 6 4 4 3 0 7 8 | 3 2 3 4 3 6 4 3 5 1 3 4 7 2 7 9 | 2 3 1 3 3 2 5 3 5 5 6 4 1 5 5 10 | 0 5 1 0 3 2 1 5 1 1 3 2 6 2 5 11 | 1 3 0 6 2 2 1 3 1 2 4 5 1 1 0 12 | 2 0 2 0 2 1 4 1 2 0 2 2 1 2 1 13 | 1 2 0 2 0 2 3 3 2 1 0 2 0 2 2 14 | 1 0 0 0 0 2 0 2 1 1 1 1 1 0 1 15 | 1 2 0 0 0 0 1 1 1 0 2 1 0 0 3 16 | 1 2 0 0 0 1 1 0 1 1 0 0 0 2 0 17 | 1 2 0 0 0 0 1 0 1 0 0 0 0 0 0 18 | 0 0 1 0 0 0 3 0 0 0 0 1 1 0 1 19 | 0 1 0 1 1 2 0 0 1 0 1 1 0 1 1 20 | 1 0 0 0 0 2 4 0 2 0 2 1 1 1 1 21 | 1 2 0 3 0 3 2 2 1 4 0 0 0 2 1 22 | 0 0 3 1 0 3 5 2 0 2 2 2 1 3 2 23 | 0 1 0 2 2 0 7 2 1 1 4 4 1 0 2 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2011 Duration >= 10 seconds | April 2011 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 1 1 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 | 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 3 | 0 0 0 0 0 0 0 0 2 0 0 1 0 1 0 4 | 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 5 | 0 0 0 3 3 3 0 1 1 1 0 0 1 0 0 6 | 0 1 1 0 0 0 1 4 0 1 1 2 1 1 2 7 | 0 1 0 0 0 0 2 0 1 1 0 0 1 0 1 8 | 0 0 1 0 0 0 0 1 1 0 0 0 0 0 0 9 | 0 0 0 0 0 1 0 0 0 1 1 0 0 0 0 10 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 11 | 0 1 0 0 0 0 0 0 0 0 0 0 0 1 0 12 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 13 | 0 0 0 0 0 0 1 0 0 0 0 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 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 1 1 0 ---+----------------------------------------------------------- UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | April 2011 | April 2011 UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ---+----------------------------------------------------------- 0h| 0 1 0 0 0 2 0 1 1 1 0 0 0 0 0 1 | 0 2 0 0 0 1 1 2 1 0 0 0 0 0 0 2 | 0 0 0 1 0 0 1 0 0 0 1 0 0 0 1 3 | 1 0 1 0 0 1 2 2 0 0 0 1 1 0 0 4 | 0 0 0 1 1 1 3 0 0 2 0 0 1 0 1 5 | 0 1 1 0 1 2 2 2 0 1 0 0 1 0 4 6 | 1 0 1 1 1 1 0 0 2 1 0 1 0 1 1 7 | 0 0 0 0 0 1 0 2 1 0 0 0 1 0 0 8 | 0 0 0 1 0 0 0 0 0 0 1 0 0 0 1 9 | 0 1 1 0 1 0 1 0 0 0 1 0 1 1 2 10 | 0 0 1 0 2 0 0 3 1 0 0 0 0 1 0 11 | 0 0 0 1 1 0 0 0 0 0 2 0 0 0 0 12 | 0 0 0 0 0 1 3 0 1 0 1 0 0 0 0 13 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 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 1 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 1 0 0 0 0 0 0 0 0 0 20 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 21 | 0 0 0 0 0 0 1 1 0 1 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 2 1 0 0 0 0 0 0 0 ---+----------------------------------------------------------- UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | April 2011 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) C/ Moianes 19-21 Esc. A 6º 1ª, E Barcelona mailto:e.fraile@telefonica.net http://www.telefonica.net/web/enricfraile (in Spanish) http://astrosurf.com/somyce/c_radio.htm Orlando Benítez Sánchez Las Palmas de Gran Canaria, Spain mailto:avejerilla@yahoo.es Michael Boschat Royal Astronomical Society of Canada - Halifax Center 6306 Cork St., Apt.308, Halifax, Nova Scotia Canada B3L 1Z1 mailto:aa063@chebucto.ns.ca http://www.chebucto.ns.ca/~aa063 Jeff Brower Kelowna, British Columbia, Canada mailto:jbrower@meteorchaser.net http://members.shaw.ca/jbrower/ Julien Bruyland Lauwe, Belgium mailto:julien@bruyland.be Willy Camps Tessenderlo, Belgium mailto:willy.camps@telenet.be Johan Coussens Harelbeke, Belgium mailto:johan.coussens@skynet.be Gaspard De Wilde (ON4ZK) Dessel, Belgium mailto:on4zk@telenet.be Franky Dubois Langemark, Belgium mailto:astrosun@skynet.be http://www.digilife.be/club/franky.dubois/meteor.html David Entwistle Goosnargh, England mailto:david@radiometeor.plus.com http://www.radiometeor.plus.com/ Kurt A. Fisher Salt Lake City,Utah, USA mailto:fisherka@csolutions.net Station description: http://www.slas.us/gallery2/main.php?g2_itemId=2984 Karl-Heinz Gansel Dingden, Germany mailto:karl-heinz.gansel@t-online.de http://www.radio-astronomie.de/ra/ Observer: Luc Gobin Mechelen, Belgium mailto:luc.gobin@gmail.com Patrice Guérin La Chapelle, 79140 Le Pin, France mailto:guer1_pm@orange.fr Alex Guzanoff Oktyabrsky, Russian Federation mailto:radio-sky@rambler.ru Szabolcs Kiss Katai ut 99, H-2251 Tapioszecso, Hungary tel: +36 29 446 015 mailto:achilles@freemail.hu Alfred Krohmal Syzran, Russian Federation mailto:rm4hm@rambler.ru Vitaly Mechinsky mailto:Lupus@belastro.net Alastair McBeath Meteor Director, Society for Popular Astronomy (SPA) 12A Prior's Walk, Morpeth, Northumberland, NE61 2RF, England, U.K. mailto:meteor@popastro.com Cristian Negru mailto:cyo3fff@yahoo.com Romania Hiroshi Ogawa University of Tsukuba, Japan mailto:HZH02257@nifty.ne.jp Radio Meteor Obs. http://www.amro-net.jp/radio.htm Mike Otte W9YS 5001 S Koch Rd Pearl City, IL 61062 USA mailto:mmotte@starband.net http://mmotte.mystarband.net/ SKiYMET Radar ALOMAR Observatory Norway mailto:singer@iap-kborn.de http://www.iap-kborn.de/radar/Radars/ALWIN/index_eng.htm Jean-Louis Rault F6AGR Epinay sur Orge, France mailto:Jean-Louis.RAULT@fr.thalesgroup.com Steve Roush Apache Junction AZ, USA mailto:ofitg@yahoo.com Wayne Sanders Prince George BC, Canada mailto:wsanders@xplornet.com http://users.xplornet.com/~rdlobs/ Ivan Sergey Belarus mailto:seriv76@tut.by Andy Smith Plymouth, United Kingdom mailto:andy@television.f9.co.uk 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): send 'subscribe radiometeoren' in message to majordomo@vvs.be Dave Swan Christchurch, UK mailto:dave@radiodesignservices.co.uk http://www.radiodesignservices.co.uk Istvan Tepliczky Budapest, Hungary mailto:tepi@mcse.hu Pierre Terrier Canet (close to Montpellier), France mailto:pierre.terrier@free.fr http://members.tripod.com/~astro_electronic/index.html Meteor & Colorgramme web site: http://page.to/meteor/ Meteor mailing list: mailto:meteor-request@ml.free.fr?subject=subscribe Dirk Van Hessche Appelterre-Eichem, Belgium mailto:dirk.van_hessche@skynet.be Maarten Vanleenhove Leest, Belgium mailto:maarten.vanleenhove@telenet.be Felix Verbelen (ON4AVF) Kampenhout, Belgium mailto:felix.verbelen@skynet.be John Wardle, G4CVA Bridlington, East Yorkshire, UK mailto:jawardle27@btinternet.com -- Christian Steyaert (RMOB1104) 7 May 2011 --