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(meteorobs) Radio Meteor Obs. Bull. July 1999
Radio Meteor Observation Bulletin No. 71 July 1999
1. FORWARD SCATTER METEOR OBSERVATIONS
Observer: Enric Fraile Algeciras
Location: Paseo Bonanova, 8 Barcelona (02 07'E, 41 24' N)
Frequency: 48.24715 MHz.
Transmitter Location: still working to identify, possibly South German C2,
100 kW, horizontal polarisation)
Antenna: 6-element Yagi 617-6B, 14 dBd gain.
astronomical azimuth 215 deg (=NE), elevation 0 deg.
Antenna: Six element Yagi 617-6B, 14 dBi gain, horizontal polariz.
Azimuth 200 deg (NE), elevation 20 deg
Receiver: home made converter 20 dB gain, 1 dB noise and Kenwood TS-830S.
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 narrow CW filter (500 Hz) and fed into the PC in real time.
Data sampling system: using a super 14 bits A/D card to PC/XT
and "Data Capture" software with 1 second/18 sampling interval
to store all the > 0.5 s reflections.
| June 1999
UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
----+--------------------------------------------------------------------------
0 | 12 9 6 1 8 1
1 | 5 11
2 | 11 10 2 1
3 | 4 3 2 1 1 1
4 | 9 10 2 6
5 | 10 6 1
6 | 7 7 1 2 2 2 2 2 2
7 | 21 17 10 2 12 3 2
8 | 13 13 21 12 18 7 6 10
9 | 13 27 10 14 14 16 11 1 9
10 | 14 14 11 3 14 13 11
11 | 10 9 8 2 11 14
12 | 7 1 15 2 7 11
13 | 2 5 9 1 1
14 | 2 4 1 3 6 9 3
15 | 4 4 4 2 5 2 1 1
16 | 3 8 11 1 10 5 11 3 38
17 | 2 12 5 5 8 14 7 3 4 33
18 | 5 7 2 1 5 12 10 4 1 2
19 | 7 2 9 16 1 16
20 | 3 9 9 8 1 15 1 1 15
21 | 1 19 19 7 3 9 5
22 | 3 21 21 2 1 7 2 1 1
23 | 6 4 4 3 1 11 2 2 1
----+------------------------------------------------------------------------
--
UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
| June 1999
| June 1999
UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
----+--------------------------------------------------------------------------
0 | 2 2 2 2 3 11 1 2 1
1 | 2 2 2 1 4 4 2 20 3 2 4 2
2 | 1 2 1 1 1 2 8 4 2
3 | 1 1 1 2 4 2 2 2 1
4 | 1 4 2 3 1 1 1 1 1
5 | 1 4 3 1 3 2 3 1 2 1 1 2
6 | 7 4 2 1 2 2 1 3
7 | 9 3 3 3 3 1 3 2 1 2 4 1
8 | 7 4 5 3 1 7 4 3 1 2 3
9 | 5 15 3 2 4 6 8 4 2 5
10 | 2 1 5 7 1 7 2 3 2 1 2 3
11 | 2 16 1 1 16 1 6 3 1
12 | 5 19 1 12 1 3
13 | 1 1 2 1
14 | 10 1 4
15 | 1 1
16 | 1 2 3 6 11 1 1 1 1
17 | 1 1 3 42 1 2 3 1 1 1
18 | 2 1 2 7 1 3 3 1 3 3
19 | 1 1 1 2 2 2 3 1 1
20 | 2 1 1 1 3 3
21 | 3 2 2 3 1 1 2
22 | 4 1 1 1 2 1
23 | 1 2 1 2 3 10 1 1 4 3
----+------------------------------------------------------------------------
--
UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
| June 1999
Notes:
. this month the system has been adjusted to record only the strongest
overdense reflections with duration of > 3 s.
Enric Fraile Algeciras
---------------------------------------------------------------------------
Observer: Michael Boschat
Location: Halifax, Canada (63 36'W, 44 39'N, 58 meters above sea level)
Listening Frequency: 83.25 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: AM
Recording method: listening by ear
June 1999
Number of meteors heard in one hour interval
| UT
Jun | 09 10 11 12 13 14 15 16 17 18 19 20 21 22
----+-------------------------------------------------------
1 | - - - - - - - - - - - - - -
2 | - - - - - - - - - - - - - -
3 | - - 6* 6* 18* 26* 21* - - - - - - -
4 | - - 12* 34* 58 46 - - - - - - - -
5 | - 15 33 59 94 116 70 59 32 - - - - -
6 | - - - - - 4* - 4* 11* - - - - -
7 | - 14* 25* 18* 28* 49*100* 93* 67 - 5 10 - -
8 | - - 7* 16* 53* 35 41 47 20 - - - - -
9 | - - - 11 69 92 102 35 16 - - - - -
10 | - - - 14* 36* 16* 13* - - - - - - -
11 | - - - - - - - - - - - - - -
12 | - - - - - - - - - - - - - -
13 | - - - - - 17 45 42 47 23 - - - -
14 | - - - - - - - - - - - - - -
15 | - - - - - - - - - - - - - -
16 | - - - - - - - - - - - - - -
17 | - - - - - - - - - - - - - -
18 | - - - - - - - - - - - - - -
19 | - - - 11 52 42 16 10 10 - - - - -
20 | - - - - - 27 22 13 21 28 11* - - -
21 | - - - - 4 8 5 - - - - - - -
22 | - - - - - - - - - - - - - -
23 | - - - - - - - - - - - - - -
24 | - - - - - - - - - - - - - -
25 | - - - - - - - - - - - - - -
26 | - - - - - - - - - - - - - -
27 | - - - 15 7 5 - - - - - - - -
28 | - - - - - - - - - - - - - 4
29 | 4 3 3* 4* 9* 20* 14* - - - - - - -
----+-------------------------------------------------------
Jun | 09 10 11 12 13 14 15 16 17 18 19 20 21 22
| UT
Notes:
. no corrections for radiant position made to the counts.
. ( - ) means no observations made.
. * = Interference.
. + = 1/2 hour observation only.
Mike Boschat
---------------------------------------------------------------------------
Observer: Maurice De Meyere
Location: Deurle, Belgium (3 37' E, 51 00' N)
Frequency: 66.51 MHz
Transmitter locations (all stations of more than 10 kW):
66.35 MHz, Klaipeda, Lithuania 12 kW, 05h00-22h00
66.47 Viesintos Lithuania 12 05h00-22h00
66.62 Budapest Hungary 100 24hrs
66.68 Valmiera Latvia 20 04h30-22h00
Antenna: crossed Yagi (x form), 4 elements, astronomical azimuth 270 deg
(= E), elevation 27 deg.
Antenna amplifier: 25 dB max level 90 dBmuV
Receiver: commercial, Progresson 447A, TESLA (Bratislava)
The receiver was calibrated with a Marconi TF2008 signal
generator. Sensitivity: 5 muV (modulation frequency
1000 Hz, frequency sweep 38 kHz) at (S+N)/N = 20 dB.
SWR of antenna alone at 66.5 MHz: 1.4/1 (good to very good),
measured with MFJ/259P SWR analyzer (HF-VHF 1.8 MHz to 170 MHz)
on Sep 28, 1998.
Observing method: automated setup, 150 samples/second, 8 bit resolution.
[Time and details of all individual meteor reflections are stored
on file in the University of Ghent format (Prometeos), and are
available for further analysis. Reduction software for DOS and
Windows available].
June 1999
Raw counts of reflections with a duration of at least 0.027 s
during one hour interval starting at UT:
Jun | UT
1999 | 20h 21 22 23 00 01 02 03 04 05 06
-----+-------------------------------------------------------
1- 2 | 96 89 26 105 48 72 95 106 179 ? ?
2- 3 | 64 57 64 116 60 62 101 115 136 121 71
3- 4 | 95 65 67 93 88 106 140 160 148 98 22
4- 5 | 83 71 64 68 61 79 135 165 154 ? ?
5- 6 | 57 58 58 77 77 ? 119 246 205 185 166
6- 7 | 49 70 53 85 87 125 164 230 216 233 212
7- 8 | 93 ? 143 82 102 86 170 248 216 207 200
8- 9 | 51 67 84 94 74 118 165 219 185 213 146
9-10 | 42 109 ? 136 84 94 174 249 193 ? ?
10-11 | 71 71 58 91 59 116 187 184 216 248 206
11-12 |
12-13 | 56 53 59 61 102 93 178 243 ? 190 166
13-14 | 73 94 121 69 100 103 157 214 212 ? 164
14-15 | ? 78 118 ? 39 9 26 19 157 ? ?
15-16 | 13 18 5 113 27 31 40 38 42 192 196
16-17 | 38 51 38 34 78 83 93 142 171 ?
20-21 | 51 69 75 109 ? ? ? ? 202 ? 176
21-22 | 41 102 70 76 ? 117 164 218 184 164 142
22-23 | 85 76 67 85 97 97 143 162 194 175 78
23-24 | 57 79 94 128 84 103 ? 107 143 176 ?
24-25 | 90 72 87 31 15 20 48 102 40 115 109
25-26 | ? 111 90 123 88 ? 150 173 81 ? ?
26-27 |
27-28 | 28 71 81 85 84 84 142 152 134 239? 183
28-29 | 69 65 56 69 61 107 102 139 111 96 ?
29-30 | 60 52 63 99 80 85 109 155 161 175 130
30-01 | 52 47 75 34 88 85 108 110 169 ? ?
------+-------------------------------------------------------
1999 | 20h 21 22 23 00 01 02 03 04 05 06
Jun | UT
Raw counts of reflections with a duration of at least 1.000 s
during one hour interval starting at UT:
Jun | UT
1999 | 20h 21 22 23 00 01 02 03 04 05 06
------+--------------------------------------------------------
1- 2 | 24* 20* 5 32* 7 8 14 15 53* ? ?
2- 3 | 33* 9 16* 38* 18* 7 11 15 23 18 16*
3- 4 | 30* 10 6 15 21* 14 25 29 14 16 5*
4- 5 | 14 15* 4 10 8 6 27 30 25 ? ?
5- 6 | 7 11 5 8 4 19 14 51* 43* 33 26
6- 7 | 9 13 2 9 16 9 18 39 37 39 54*
7- 8 | 27* ? 30* 17* 25* 10 23 42 36 32 32
8- 9 | 7 16* 17* 23* 8 13 20 44* 30 50* 33*
9-10 | 5 39* ? 50 12 9 26 35 47* ? ?
10-11 | 16* 7 12* 10 8 12 36 32 45* 60* 43*
11-12 |
12-13 | 9 6 6 8 12 6 23 35 ? 25 25
13-14 | 8 33* 48* 8 21* 14 29 29 45* 35 50*
14-15 | ? 19* ? ? 5 0 5 3 ? ? ?
15-16 | 2 2 1 50* 2 2 7 2 10* 72* 83*
16-17 | 6 10 10* 10* 9 9 12 26* 41* ?
20-21 | 8 14* 25* 17 ? ? ? ? 24 ? 34
21-22 | 5 21* 11 6 ? 16 23 ? 28 27 32*
22-23 | 23* 12 16* 11 10 7 13 21 40* 38* 10
23-24 | 7 9 23* 41* 13 19 30 15 28 57* ?
24-25 | 14 9 28* 3 2 0 9 21* 3 40* ?
25-26 | ? 32* 27* ? 10 ? 24 28 19* ? ?
26-27 |
27-28 | 4 9 16 12 8 10 20 28 28* 76* 45*
28-29 | 9 10 6 10 7 12 7 20 20 18 38
29-30 | 6 8 16* 21* 11 13 11 35* 41* 43* 31*
30-01 | 11* 6 30* 13* 9 10 17 17 56* ? ?
------+--------------------------------------------------------
1999 | 20h 21 22 23 00 01 02 03 04 05 06
Jun |
Notes:
. ? probably affected by sporadic-E, tropo, direct reception.
. thunderstorms on June 26
. * warning for relative high number of long duration reflections,
an indication for potential stream activity.
. local time = UT + 2 hours
Maurice De Meyere
----------------------------------------------------------------------
Location: Astronomical Observatory, University of Ghent, Belgium
(3 42' 32" E, 51 01' 25" N)
Antenna (2x): 4 elements horizontal Yagi, pointed East, elevation= 20 deg
Antenna amplifier: 10 dB gain
smallband resonance lambda/4 antenna filter
Frequency: (1)=66.29 MHz (signal) and (2)=65.3 MHz (interference control)
Receiver (2x): modified commercial FM receiver
Data acquisition: 12 bits PC-based A/D convertor, 250 Hz sampling rate
Interference rejection:
dual setup: receiver (1) tuned at distant transmitter, receiver (2)
tuned at empty frequency. Anti-coincidence measurement rejects
registration of broadbanded spurious signals (lightning, computers,
ignition motors, etc).
Further information:
see WWW page (additional info + observational data)
http://allserv.rug.acdot be/~hdejongh/astro/meteor/meteor.html
Data format:
results are shown as total reflection time, expressed as
a percentage. The actual number shows 10 times this value.
When no figure is shown, the equipment was either out of service,
or results could have been affected by interference, sporadic-E.
--------------------------------------------------------------
| Jun 1999 | 10x % reflec. time | horiz: day | vert: time UT |
-----------------------------------------------------------------
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
---+------------------------------------------------------------
0 | 38 33 31 52 57 59 50 61 40 46 41 51 57 59 49
1 | 52 45 29 51 77 63 56 56 66 45 65 47 73 61 55
2 | 63 66 69 59 109 97 81 155 107 87 157 96 109 82 73
3 | 104 84 85 122 145 156 114 157 117 141 117 120 192 106 115
4 | 86 123 102 102 138 171 136 180 144 152 117 180 108 90
5 | 74 104 87 131 140 231 225 205 186 165 144 174 166
6 | 75 91 73 178 201 256 255 156 159 226 189 186 179
7 | 62 87 82 149 228 248 168 161 190 205 247 215 169 91
8 | 83 64 77 149 209 282 181 157 203 138 165 181 200 123 139
9 | 69 51 107 170 172 264 162 134 158 136 175 192 155 125 145
10 | 69 51 86 114 154 243 130 125 104 183 152 165 114 107
11 | 80 46 53 82 104 153 91 90 123 111 98 131 81 60
12 | 46 35 31 48 101 96 86 77 76 91 76 68 108 74 56
13 | 16 53 28 62 95 56 70 47 72 61 99 101 59 71
14 | 26 24 34 37 76 57 75 56 62 57 86 83 47 61
15 | 33 75 41 51 45 71 52 39 51 55 49 204 110 55 43
16 | 24 22 44 29 31 36 34 54 44 39 133 62 36 31
17 | 14 21 48 31 26 23 19 20 36 24 42 49 25 32
18 | 21 14 22 29 20 24 16 12 23 68 22 31
19 | 17 23 16 21 19 22 24 16 32 13 11 15
20 | 16 18 36 16 23 34 21 15 18 23 14 18 21
21 | 16 23 23 30 32 22 25 22 24 24 27 24 15 33 29
22 | 20 25 29 20 28 30 23 28 27 30 18 25 38 21 17
23 | 27 22 28 34 47 40 37 39 30 33 30 30 42 17 30
---+------------------------------------------------------------
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
--------------------------------------------------------------
| Jun 1999 | 10x % reflec. time | horiz: day | vert: time UT |
-----------------------------------------------------------------
| 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
---+------------------------------------------------------------
0 | 54 59 58 57 53 65 84 44 48 46 58 67 79 70 53
1 | 71 78 59 77 74 70 79 42 62 66 121 86 82 85 70
2 | 85 90 88 93 99 91 115 72 104 93 111 108 127 109 109
3 | 107 168 172 118 137 146 147 94 127 132 103 161 130 143 118
4 | 165 116 106 123 145 113 133 115 95 93 69 72 122 119 123
5 | 153 102 142 78 121 184 144 89 98 80 101 91 86 99
6 | 109 90 129 141 160 155 135 91 107 85 82 92 96 84
7 | 68 61 108 157 184 138 151 74 145 84 132 96 118 107
8 | 99 57 102 161 115 94 125 76 142 78 85 94
9 | 133 65 79 178 139 112 101 86 142 58 104 85
10 | 93 70 85 66 69 80 98 107 52 78 68
11 | 78 61 76 80 88 52 107 98 52 63 41
12 | 39 75 39 63 62 54 59 72 99 44 26 44
13 | 39 41 27 35 82 28 32 42 73 79 24 43 45
14 | 42 35 27 33 43 32 43 107 42 22 45
15 | 31 49 29 39 40 31 55 73 35 40 34
16 | 42 36 60 45 26 43 35 54 35
17 | 38 28 21 30 33 38 37 22 29 25
18 | 18 13 20 54 15 41 13 17 25
19 | 34 15 61 26 26 20 85 12 22 16 29 25
20 | 22 24 16 22 58 23 29 35 30 28 62 16 29
21 | 17 38 33 23 31 50 28 29 32 36 29 37 34 20 27
22 | 19 36 25 28 27 37 25 43 24 44 36 60 34 26 34
23 | 31 41 40 43 42 42 36 58 31 32 46 46 54 37 46
---+------------------------------------------------------------
| 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Notes:
. good Arietids and zeta Perseids during the first half of the month.
Lots of interference towards the end of the month.
Pierre De Groote
---------------------------------------------------------------------------
Observer: Werfried Kuneth
Location: Ferndorf, Austria (13 37' E, 46 45' N)
Antenna: 2 element Yagi, direction southeast, no elevation at 1 m height.
Receiver: IC-706 at 53.76065 MHz, CW-R mode, 500 Hz CW filter, fast AGC.
Transmitters: 1) 30 kW TV video carrier from Bari, Italy, distance 700 km,
direction south and 2) a 30 kW TV video carrier from Sicilia,
Italy, distance 900 km, south. The total echo power of both
transmitters is processed into same 40 Hz virtual
receiver channel.
Observing method: automatic setup using FFTDSP42t software by AF9Y to record
the audio signal. 20 channels of 2 Hz width are used for meteor
identification, another channel is used for automatic
interference rejection. Sampling interval: one 4096
point FFT every 0.5 seconds.
The monthly results showing the total reflective time are now also
available at http://www.qsldot net/oe8fnk this includes now also Es, FAI
and fireball statistics.
The meteor counts below are corrected for a full hour observing time. If
the recording duration is 20-40 minutes, a dot is shown after the value, to
show the reduced accuracy. Results for less than 20 min. observing time are
excluded.
Counts of reflections longer than 6.5 seconds, assumed
to be overdense.
| Jun 1999
UT| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
---+-----------------------------------------------------------
0| 4 3 3 6 5 8 5 5 4 0 6 2 3 3
1| 5. 4 3. 4 4 4 1 1 4 3 0 5 9 4 9
2| 5 5 7. 3 6 5 3 7 4 4 2 6 4 7 3
3| 2 4 4 7 7 3 4 5 3 5 4. 9 6 7 1
4| 4 4 9 11 6 5 2 3 6 10 7 12 11 8
5| 6 12 4 9 10 7 11 11 9 14 11 11 19 15
6| 6 5 11 7 9 6 21 11 8 8 12 23 20 7. 14
7| 3 4 4 12 13 7 6 10. 12 13 10 5 10 7
8| 6 2 10 7 3 5. 7 13 6 5 2 13 6. 10
9| 10 6 3 5 2 10 10 10 5 4 2 12
10| 5 5 3 9 6 13 7 17 7 12 9 5 7
11| 9. 11. 2 11 6 7 14 9 7 12 15 6. 14
12| 2 9 0 6 18. 9. 9 13 11 7 13 8 9. 15
13| 4 7 3 7 8 4 3 14 4 16. 8 7
14| 3 2 0 0 5 2 4 8 2 6 0. 4. 2
15| 2 4 1 2. 3 1 1 1 4 1 1 3 5 0 3
16| 0 0 1 2 1 0 0 0 0 0 4 0 1
17| 0 0 2 0 1 0 0 1 2 2 3 1 4
18| 3 0 0 0 0. 0 0 0 0 0 1 0.
19| 2 0. 0 1 0 1 0 0. 1 0 1
20| 3 4 2. 0 0 0 2 1 0. 2 1 2 1
21| 5 5 3 0. 0 3 4 1 1 2. 0 4 3 2
22| 0 4 4 5 2 1 1 3 0 1 1 3 0 3
23| 2 2 2 2 2 2 1 0 3 6 2 1 2 2
---+-----------------------------------------------------------
UT| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
| Jun 1999
| Jun 1999
UT| 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
---+-----------------------------------------------------------
0| 2 2 6 6 4 3 7 4 6 7 3 3 3
1| 3 3 5 5 0. 5 4 6 3 13 4 7 4. 3
2| 4 6 6 11 4 6 9 10 2 4 13 5 5 7
3| 10 3 8 5 8 7 7 17 5 5 8 4 15 4
4| 3 9 7 15 9 8 4 8 6 7 13 7 10 4
5| 5 6 9 17 13 12 7 12. 6 6 8 16 10 11 10
6| 8 9 5 19 14 14 8 9 8 5 11 9 8 12 10
7| 9 12 12 10 7 11 9 10 8 5 10 9 2 10 3
8| 11 5 5 5 8 7 6 6 6 8 7. 6
9| 7 3 7 5 4 13 5 0. 5 3 3 7 6 7
10| 6 8 11 8. 5 8. 6 7 4 4 9 5 1 6
11| 11 18. 8 11 12. 9 13 10 7 12 4 3
12| 4 10. 12 7 11 9. 1 16. 9 6 9 8. 8 5
13| 7 9 4 6 9. 7 8 4 4 11 6 8 7
14| 4 3 10 4. 1 4. 4 5. 8 8 3 2 0 3
15| 2 5 2. 2 2 0 1 2 1
16| 3 3. 2. 4. 3 1 3 3 3 1
17| 0 0 2 0. 3 3 1 4 1 0. 3
18| 0 2 1 1 2 0. 0 0 0 1 1
19| 1 1 1 0 1 2. 4 0. 1 1 3
20| 1 1 1 0 2 3 0 0. 0
21| 2 1 1 2 4 1 2. 4 5 0 2 3 2
22| 2. 2 5 0 2 4 4 1 3 4 2 2 2
23| 1 4 8 3 5 2 8 3 4 9 5 4 5
---+-----------------------------------------------------------
UT| 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
| Jun 1999
Propagation overview for June 1999
E : sporadic-E or E-layer propagation
F : FAI (field aligned irregularity)
- : propagation only via meteor echos.
(blank) : no data available
| Jun 1999
UT| 1 2 3 4 5 6 7 8 9101112131415161718192021222324252627282930
---+------------------------------------------------------------
0| - - - E - - - - - - - - - - - - - - E - - - - - - - E -
1| - - - - - - - - - - - - - - - - - - - F - - - - - - - E -
2| - - - - - - - - - - - - - - - - - - E - - - E - - - - - -
3| - - - - - - - - - - F - - - - - - - - - - - - - - - - - -
4| - - - - - - - - - - - - - - - - - - E - - - - - - - - - - -
5| - - - - - - - - - - - - - - - - - - - - - - E E - - - - - -
6| - - - - - - - - - - - - - - - - - E - - - - - - - - - - - -
7| - - - - - - - - - - - - - - - - - E - E - - E - - - - - - -
8| E - - - - - E - - - - - - - - - - E E E - - E E - - - - E -
9| E E - E - - E - - - - - E - - - - E E E - - E E - - - - - -
10| - E - E - - E - - - - - - - - - - E E E - - E E - - - E E -
11| E E E E - E E - - - - - - - - - E E E E E - - E - - - E - -
12| - - - - E E - - - - - - - - - E - E E E - - E - - - E - -
13| - - - - - E E - - - E - - - - - - - E - E - E - - - - - -
14| - - - - - - - - - - - - - - - E - E E - E - E - - - - - -
15| - - - - - - E - - - - - - F - - E E E E - E - E - - - -
16| - E - - - - E - - - - - - F - - E E E E - E - E - - - -
17| - E - - E - E - - - - - - F - - - E E - E E E - - - E -
18| - E - E E - E - - - - - - E - - - - E - E E E E - - E -
19| - E - E E - E - - F - - - E - - F - E - E E - F - - E -
20| - - - E E - E - E F - - - - - F F - - E E - E - - E -
21| - - - E - - - - F F - - - - - E - E E E E - - - - - -
22| - - - F - - - - - F - - - - F - - - E E - - - - - - - -
23| - - - - - - - - - - - - - - - - - - E - - - - - - - - -
---+------------------------------------------------------------
UT| 1 2 3 4 5 6 7 8 9101112131415161718192021222324252627282930
| Jun 1999
Notes:
. no activity and no outburst seen from the June Bootids, quite
different from 1998.
. lots of sporadic E propagation.
Werfried Kuneth
---------------------------------------------------------------------------
Observer: R.B. Minton
Location: Raton, NM (104 26' W, 36 54' N, 2000 m above sea level)
Frequency: 92.9 MHz
Transmitters: KTZA FM 100 kW, Artesia NM, dist 444 km, geogr azim 178 deg
KSPZ FM 53 kW, Color. Springs, dist 217 km, geogr azim 352 deg
KYBR FM ? kW, Espanola NM, dist 180 km, geogr azim 236 deg
???? FM ? kW, Juarez Mexico, dist 579 km, geogr azim 198 deg
Antenna: folded dipole, on 6.3 m high mast, oriented N-S
Receiver: Subaru 12 V DC car radio with digital tuning
Observing method: conditioned audio input in the game port of an IBM 386 SX-50
PC, 128 samples/second, DOS/Basic software, automatic
Total hourly counts
May 1999
May| UT
1999| 0h 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
----+------------------------------------------------------------------------
1 | 3 5 6 11 10 3 2 0 4 1 8 4 1 2 1 0 4 6 2 1 0 5 12 1
2 | 3 2 1 2 1 4 6 3 0 2 2 3 7 9 6 11 9 7 4 9 2 8 3 8
3 | 5 8 3 7 3 5 6 6 11 9 10 7 13 7 12 21 19 13 8 9 7 19 12 5
4 | 9 6 7 10 8 5 4 3 4 4 10 9 14 8 12 25 20 18 13 16 9 20 16 14
5 | 8 12 7 12 8 5 5 11 6 10 11 21 18 16 18 18 24 18 13 19 7 16 15 21
6 | 6 9 9 14 23 7 6 9 7 12 9 13 18 11 25 23 23 14 13 8 5 11 19 13
7 | 19 12 12 13 18 7 11 5 6 9 10 14 21 18 21 36 23 17 25 12 6 10 15 7
8 | 12 4 11 11 13 5 15 4 5 9 11 10 18 16 21 25 22 17 13 9 8 11 11 6
9 | 7 6 13 11 7 1 17 8 5 10 14 11 16 16 15 24 21 21 5 7 10 15 8 6
10 | 7 5 10 8 11 5 7 7 8 7 5 9 7 16 17 31 23 21 14 8 17 5 14 18
11 | 14 13 17 15 28 15 11 13 5 4 6 16 11 12 20 22 18 18 13 11 14 21 22 11
12 | 10 8 7 19 15 7 4 6 7 8 17 14 8 12 26 27 20 11 11 9 15 15 16 14
13 | 11 7 5 6 16 7 13 8 11 9 6 5 11 15 39 33 19 9 16 22 12 8 22 10
14 | 10 15 12 24 13 5 8 5 7 13 10 16 5 11 24 32 28 18 15 17 10 8 22 17
15 | 19 8 14 14 9 6 13 13 14 7 10 5 19 11 23 21 25 11 16 11 13 11 19 13
16 | 19 10 8 7 7 5 9 1 3 8 7 4 9 11 11 22 15 20 10 15 12 13 13 11
17 | 13 7 10 9 10 1 3 3 9 7 3 5 10 13 9 11 12 6 5 24 3 5 12 3
18 | 8 7 3 11 12 7 3 5 7 7 9 8 10 10 17 24 22 18 11 26 11 12 15 19
19 | 6 5 2 7 10 8 8 9 5 4 11 7 36?12 9 30 24 15 19 89?52?30 11 5
20 | 14 93? 7 13 31 6 4 6 3 5 4 6 7 10 15 28 12 10 12 7 7 14 14 12
21 | 11 8 5 6 9 3 2 6 3 5 6 3 13 13 13 13 17 8 11 7 14 16 8 12
22 | 10 3 4 14 15 4 4 4 1 5 5 5 9 17 8 17 9 12 19 8 12 8 15 9
23 | 3 10 7 9 6 2 4 5 2 5 3 8 7 4 9 14 21 10 7 9 9 3 8 6
24 | 2 3 12 3 5 5 11 7 6 3 5 7 9 7 13 23 14 9 17 16 13 41 15 3
25 | 5 8 5 23 12 6 4 7 4 3 6 4 5 5 10 17 11 14102135 45 6 15 10
26 | 10 11 6 4 4 4 6 4 8 5 2 5 3 8 18 13 13 13 39 39 5 11 9 7
27 | 7 3 2 9 7 5 6 6 1 4 6 3 4 9 5 21 17 18 7 7 13 8 18 18
28 | 7 3 6 12 4 2 2 3 3 2 7 2 12 6 7 25 20 17 8 12 11 10 8 14
29 | 6 3 10 13 9 2 7 6 7 1 4 11 10 8 4 33 14 12 42117 80 11 16 13
30 | 69?61? 5 11 96?13 5 3 2 4 8 3 7 13 14 17 10 9 4 4 9 3 12 13
31 | 5 5 5 39 4 4 8 2 3 2 5 10 7 6 10 17 20 12 3 2 8 7 10 7
----+------------------------------------------------------------------------
1999| 0h 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
May| UT
Signal duration distribution for the above period
Duration (s) Number
< 0.1 2546
0.1 to 0.3 2271
0.3 to 1 1639
1 to 3 1265
3 to 10 789
10 to 30 123
> 30 2
Note:
. lightning noise on May 19, and possibly on May 25 and 29.
R.B. Minton
---------------------------------------------------------------------------
Observer: Sadao Okamoto
Location: Damine Meteor Observatory, Japan (137.53 E, 35.07 N)
Transmitter: HAM beacon (JA9YDB) for RMO (50 W CW, 53.7500 MHz) by
JA9BOH Kimio Maegawa. No modulation except for identification.
Antenna: 2 element Cross Yagi 4 dBi aiming to Zenith. Omni-directional
in azimuth and elevation above 15 deg elevation.
Location: Fukui-NCT at Sabae city (136.2 E, 35.9 N)
At present time about 10 observers are listing for
Kimio Maegawa's 53.75 MHz beacon.
Receiver: IC575
Antenna: 2 element Yagi, pointed to the zenith.
Observing method: FFTDSP software, manual count.
Hourly echoes over 10 dB SNR
1999
Jun|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST
Jun|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14
UT
---+--------------------------------------------------------------------------
1|27 29 30 29 39 48 52 e e e e e e e 33 23@32 13 5 11 12 27 24 --
2|23 38 34 33 34 31 39 59 35 24 20 34 23 50 39 31 14 8 8 10 20 25 36@41
3|31 28 33 55 36 51 53@54 50 29 e e e@48 31 34 17 6 13 10 6 21 30@23
4|26 34 36 34 39 71 64 64 52 e e e e 60 e e 16 6 7 9 14 21 21@36
5|31 40 34 25 43 48 76 60 66 23 22 e e e 20 e e e 8 15 14 21 33 --
6|35 36 37 45 40 64 60 69 61 41 39@47 e e e e e@11 13 17 16 22 26@40
7|26 36 39 42 37 57 68 55 46 28 33 37 55 64 42 36 23 11 8 12 14 24 33@39
8|24 29 32 45 55 72 76 85 n n@35 55 51 58 50 30 27 13 11 14 16 24 30@31
9|36 37 44 51 54 83 94 74 41 n n 28 46 46 37 28 19 12 18 9 15 23 33@31
10|35 23 43 46 70 62 84 80 74 39 41 45 66 80 57 42 26 13 10 14 14 27 29@38
11|49 43 51 50 53 80 79 86 58 35 31 55 78 84 45 36 29 14 e@15 12 27@24@27
12|40 31 42 51 62 62 75 73 61 20 22 56 54 58 44 39 23 12 11 10 23 26 25@37
13|33 42 43 40 56 74 77@78@42 e e n n n n n -- 13 8 13 18 18 31 --
14|44 36 37 47 66 86 87 85 67 f f f f f f f f f f 17@24 26 36@37
15|46 38 36 58 68 63 77 75 62 38 32 49 86 85 53 24 21 7 10 11 22 32 32@52
16|45 26 55 49 65 67 75 73 62 40 17 25 52 64 27 11 8 15 12 16 17 24 25@35
17|37 57 51 42 71 64 84 73 52 e e e e e@27 e e e e 12 7 19 27@25
18|47 42 41 53 55 64 69@56 e e e e 63 68 33 38 14 8 9 15 15 28 37@38
19|46 38 62 39 57 65 63@66 e e e e@36 64 35 e e e e 13 18 26 32 --
20|29 46 22 42 58 55 63 57 57 42 40 39 57 56 43 33 13 17 11 11 18 18 33@35
21|33 36 41 46 61 74 54 43 44 34 31 47 56 62 39 21 11 10 12 12 20 18 32@39
22|33 39 40 52 66 67 65 69 33 22 26 40 49 49 43 24 20 17 14 16 14 27 35@31
23|39 25 40 44 56 75 61 60 47 32 33 41 51 54 42 34 17 15 11 14 8 18 30@38
24|31 35 46 33 57 52 60 54 64 39 21 41 44 47 27 23 15 9 18 7 20 20 28@37
25|38 38 40 43 62 60 64 68 46 36 21 46 30 45 29 30 19 18 8 7 19 23 35@24
26|34 26 34 38 60 66 51 71 42 34 14 26 48 43 31 29 -- 13 7 9 17 27 22@34
27|40 39 39 35 45 45@54 e 32 n n e 32 39 37 25 18 9 13 10 15 30 24@30
28|27 30 30 40 62 54 46 55 28 24@21@38 48 55 42 32 19 29 e 16 33 19 28@42
29|44 38 35 40 44 54 49 44 47 30 26 27 33 32 29 23 20 14 11 4 15 19 32@27
30|25 27 f f f f f f f f f f f f f f f 8 10 10 17 18 37@26
--+--------------------------------------------------------------------------
Jun|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14
UT Jun|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22
23JST 1999
Echoes with duration > 5 s
1999
Jun|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST
Jun|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14
UT
---+--------------------------------------------------------------------------
1| 2 5 3 10 4 3 1 1 3 2
2| 2 1 2 2 2 4 5 5 3 1 2 3 2 2 2
3| 3 6 5 4 3 4 4 2 2 3
4| 2 2 6 9 7 7 1 1
5| 1 4 2 2 1 3 10 7 5 3 1 1 1
6| 2 4 8 6 9 7 6 1 12 3
7| 1 1 7 2 8 9 9 12 7 2 6 8 14 10 4 2 1 3
8| 1 1 1 3 9 8 13 11 1 11 4 10 6 1 1 1 1 1
9| 2 3 1 2 5 9 21 8 5 3 6 3 4 2 1 2 1
10| 4 1 2 2 11 3 14 10 7 2 3 7 6 7 1 5 1 1
11| 1 2 2 6 3 11 11 11 3 1 3 10 7 8 1 2
12| 1 1 1 3 2 5 11 3 2 2 9 5 9 1 2 1 1 2 1
13| 1 2 2 8 9 4 7 2 1 1
14| 1 1 3 4 4 11 6 6 7 2 2 2
15| 3 1 1 3 5 9 7 10 4 5 5 5 6 6 3 1 1
16| 4 1 1 3 3 5 16 9 4 1 2 3 3 3 1
17| 1 3 2 1 6 4 8 10 5 1 1
18| 3 3 3 2 4 5 7 1 5 2 3 1 1 1 2
19| 2 2 4 3 5 7 4 5 1 12 3 1 1 1
20| 2 3 3 2 3 9 5 6 8 1 1 2 6 4 3 1 1 1 1
21| 1 2 3 4 4 1 1 5 3 1 3 15 4 2 1
22| 2 2 1 7 3 3 6 6 4 1 3 4 4 4 3 2 3 1 1
23| 1 2 6 3 9 7 6 3 5 4 8 4 2 1 2
24| 1 2 1 3 8 7 9 8 11 4 1 3 2 8 2 1
25| 2 1 3 6 6 11 6 3 1 4 2 6 3 2 1 2 1 1 1
26| 2 1 1 4 4 4 3 5 1 3 3 5 1 4 1 2 @6
27| 3 1 7 1 1 6 2 2 4 2 5 1 1 2
28| 4 6 2 2 7 5 6 6 1 1 2 8 2 2 1 1 2
29| 2 3 1 5 5 3 2 3 1 3 3 3 1 1 2 1 2
30| 1 1 f f f f f f f f f f f f f f f 1
---+-------------------------------------------------------------------------
- Jun|15 16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13
14 UT Jun|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21
22 23JST 1999
Daily rate of long echoes (T > 20 s)
1999
June 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
----------------------------------------------------------------
Count 1 1 4 3 2 3 6 2 6 9 6 1 2 5 1
June 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
----------------------------------------------------------------
Count 5 4 3 6 2 4 5 2 5 5 2 1 3 4 (2)
Notes:
-: lost counts because of high noise level or machine failure.
@: hourly rate estimated by effective observation time less than 60 min.
n: contamination due to radio noise.
e: contamination due to sporadic E opening.
f: no data available due to TX or RX failure.
JST = UT + 9 hours
. the June Bootid shower did not occur.
Sadao Okamoto
---------------------------------------------------------------------------
Observer: Chikara Shimoda
Location: Asahi, Nagano, Japan (137 51' E, 36 07' N)
Frequency: 81.4 MHz
Transmitter Location: FM-Japan 81.3 MHz, 10 kW, distance 180 km.
Antenna: 5 element Yagi directed to the zenith.
Receiver: AM-FM Tuner (TRIO KT-1100)
Observing method: Meteor echoes output from center-tuning meter were
recorded on a pen-recorder chart.
June 1999
Jun | UT
1999 | 11h 12 13 14 15 16 17 18 19 20 21 22 | *(1) **(2)
------+-------------------------------------------------+-----------
1 | 10 21 16 17 23 20 21 32 27 | 15.7 23.3
2 | |
3 | 25 20 26 21 32 47 59 32 | 22.5 36.2
4 | 6 24 20 25 22 28 19 26 38 32 31 27 | 20.8 28.8
5 | 7 16 24 19 22 20 25 23 36 51 46 43 | 18.0 37.3
6 | 9 11 15 25 33 24 24 40 53 56 61 | 19.5 46.8
7 | 16 11 22 33 26 23 26 40 48 44 49 37 | 21.8 40.7
8 | 11 16 24 25 25 17 34 30 43 48 62 42 | 19.7 43.2
9 | 12 10 20 17 30 25 29 36 45 41 62 37 | 19.0 41.7
10 | 13 12 20 32 28 27 30 41 44 46 40 39 | 22.0 40.0
11 | 22 23 33 30 40 51 57 60 46 | 26.0 47.3
12 | 9 15 29 29 41 25 33 32 44 61 73 50 | 24.7 48.8
13 | 16 17 14 33 34 25 26 32 45 53 55 40 | 23.2 41.8
14 | 13 20 23 31 39 33 28 38 48 55 58 49 | 26.5 46.0
15 | 8 9 24 23 33 39 24 25 53 | 13.7 32.8
16 | 13 18 34 29 32 28 42 47 54 64 46 | 25.2 46.8
17 | 11 18 19 28 33 30 29 42 47 61 59 56 | 23.2 49.0
18 | 11 21 27 25 30 26 22 35 48 54 51 52 | 23.3 43.7
19 | 9 14 33 29 33 29 29 30 41 56 49 42 | 24.5 41.2
20 | 16 23 23 27 32 27 29 40 47 37 42 | 24.2 37.0
21 | 13 34 25 27 | 24.8
22 | 18 28 25 28 25 29 24 41 47 35 42 | 24.8 36.3
23 | 16 19 32 25 37 35 36 45 46 57 47 44 | 27.3 45.8
24 | 15 12 30 46 37 43 44 30 48 44 51 50 | 30.5 44.5
25 | 15 13 26 29 40 29 40 33 34 41 34 | 24.6 35.2
26 | 8 10 21 37 34 48 40 45 44 73 49 35 | 26.3 47.7
27 | 8 23 36 22 24 45 43 41 | 22.3 38.3
28 | 12 18 8 27 31 26 23 28 33 26 35 29 | 20.3 29.0
29 | 13 19 22 32 36 31 32 43 34 38 55 40 | 25.5 40.3
30 | 12 14 22 29 37 29 | 23.8
------+-------------------------------------------------+-----------
1999 | 11h 12 13 14 15 16 17 18 19 20 21 22 | *(1) **(2)
Jun | UT
Notes:
* (1) average hourly rate between 11h-17h UT
**(2) average hourly rate between 17h-23h UT
. local time = JST = UT + 9 hours
Chikara Shimoda
---------------------------------------------------------------------------
Observer: Garfield Tsao (BM2EQB)
Location: LonTan Observatory
LonTan, TauYan, Taiwan (121 14'37" E, 24 52'54" N by GPS)
Frequency: 50.0169 MHz USB mode 3 kHz Width.
Antenna: Multi band Dipole antenna for HF and 50 MHz.
(Installed to confront North and South direction).
Transmitter: MIYAZAKI University Japan, USB mode, 50 W (24 hours)
Distance: About 1,125 km from Lon Tan.
Receiver: Icon PCR-1000 all band receiver by computer controlled
Sensitivity: 0.25 uV for 10 dB S/N for USB mode
Observing method: the "S" signal is received using a band pass filter (50 MHz)
and fed in to the D/A converter and computer in real time. Data
sampling system: using a 8 bits A/D card to PC/AT and "Data
Capture" software with 1/8 second sampling interval to store all
the > 1.0 s reflections.
| June 1999
UT LT | 13 14 17 18 19 20
-------+----------------------------------
16 0 | 0 0 0 0 0 0
17 1 | 0 0 0 0 0 0
18 2 | 0 0 0 0 0 0
19 3 | 0 0 0 0 0 0
20 4 | 0 0 0 1 0 0
21 5 | 0 1 0 0 1 1
22 6 | 0 0 0 0 0 0
23 7 | 1 0 0 0 0 0
0 8 | 2 0 0 0 E 0
1 9 | E 1 0 0 E 0
2 10 | 0 0 0 0 E
3 11 | 0 E 0 0 E
4 12 | 0 0 4 0 E
5 13 | 0 0 0 0 0
6 14 | 0 0 0 0 2
7 15 | 0 0 E 0 E
8 16 | 0 0 E 0 E
9 17 | 0 0 E 0 E
10 18 | 0 0 E 0 0
11 19 | 0 0 0 0 0
12 20 | 0 0 0 0 0
13 21 | 0 0 0 0 0
14 22 | 0 0 0 0 0
15 23 | 0 0 0 0 0
--------+----------------------------------
UT LT | 13 14 17 18 19 20
| June 1999
Note:
. "E" mark= E layer propagation and E layer sporadic of reflection.
Garfield Tsao
---------------------------------------------------------------------------
Observer: Ilkka Yrjola
Location: Finland (26 35' E, 60 54' N)
Frequency: 88.8 MHz ?
Receiver: Salora SRP-22 modified, narrow band FM (B=15 kHz)?
detected signal level >-122 dBm.
FM detection, no pulse noise rejection required.
Antenna: 2-el. Yagi, G=4 dBd to SW, azimuth 45 deg (SW), polarisation H.
Data sampling system: threshold triggering, sampling rate 32 ms.
Computer logs total hourly elapsed reflection time, number of
triggers for the hour, the longest time the signal was
continuously above detection level for the hour.
Data on major showers available in the Compact MS-Soft format.
Software for viewing available from
www.saunalahti.fi/~oh5iy/radio50.zip (754 K).
Arietids and zeta Perseids 1999
Meteor counts in one hour intervals starting at:
UT | 5 Jun 6 Jun 7 Jun 8 Jun 9 Jun 10 Jun 11 Jun 12 Jun
----+---------------------------------------------------------------
0 | 237 254 327 229 333 235 259 295
1 | 319 378 347 235 360 315 327 360
2 | 346 437 380 429 474 413 376 452
3 | 403 617 867 508 664 671 475 418
4 | 452 558 1178 503 555 598 486 397
5 | 627 769 810 795 791 656 718 448
6 | 617 835 671 698 799 737 643 495
7 | 719 916 619 804 752 622 537 473
8 | 548 520 538 622 554 340 682 404
9 | 472 397 312 484 503 198 671 264
10 | 302 309 310 393 477 165 286 253
11 | 380 523 517 709 779 254 385 407
12 | 524 663 565 943 614 348 641 602
13 | 868 822 733 804 762 387 676 651
14 | 723 563 470 589 592 359 456 461
15 | 312 424 341 404 409 231 400 325
16 | 291 250 276 362 382 218 295 251
17 | 249 160 186 275 206 120 172 155
18 | 154 132 153 160 177 135 131 137
19 | 154 124 175 130 138 117 126 148
20 | 148 190 185 183 199 137 133 135
21 | 151 165 159 215 142 117 153 156
22 | 271 251 144 251 180 152 168 185
23 | 197 217 150 262 207 152 191 195
----+---------------------------------------------------------------
UT | 5 Jun 6 Jun 7 Jun 8 Jun 9 Jun 10 Jun 11 Jun 12 Jun
Note:
from June onwards scaled with a non linear scaling algorithm, due to an
apparent difference in receiving system performance since the last
modification (to two frequency system) in February.
Ilkka Yrjola
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 rapidly 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 recent 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, non-commercial (second hand) sale of radio equipment,
available software.
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.
Those not having access to E-mail can obtain a printed copy free of charge
from J. Van Wassenhove (current or back-issues).
3. CONTRIBUTORS / USEFUL ADDRESSES
Enric Fraile Algeciras (EA3BTZ)
C/ Moianes 19-21 Esc. A 6º 1ª, E Barcelona
E-mail: EA3BTZ@mx3.redestb.es
http://www.redestb.es/personal/ea3btz (in Spanish)
Michael Boschat
6306 Cork St., Apt.512, Halifax, Nova Scotia, Canada
E-mail: andromed@atm.daldot ca
Maurice De Meyere (ON4NU)
Hullekensstraat 24, B-9831 Deurle, Belgium
tel: +32 (9) 282 35 26
E-mail: mauricedot demeyere@planetinternetdot be
University of Ghent, Astronomical Observatory
Krijgslaan 281(S9), B-9000 Gent, Belgium
E-mail contact: Paul@izar.rug.acdot be, Pierredot deGroote@rug.acdot be
Ou Yang Tian Jing
Wu Han, Hu Bei, P.R. of China
E-mail: jxpsky@neasedot net and jiangxph@public.wh.hb.cn
http://www.neasedot net/~jxpsky
H. W. Kelsey, A.L.P.O.
Santa Maria, CA, USA
E-mail: 73073.1464@compuserve.com
Werfried Kuneth
Ferndorf, Austria
E-mail: kuneth@net4youdot net
http://www.qsldot net/oe8fnk
Alastair McBeath
IMO: International Meteor Organization
12A Prior's Walk, Morpeth, Northumberland, NE61 2RF, England, U.K.
E-mail: vice_president@imodot net
R.B. Minton
Astrometric Observatory
568 North First Street, Raton, NM 87740, USA
tel: +001 (505) 445 7009
Sadao Okamoto
E-mail: okamoto@jim.sugiyama-u.ac.jp
Chikara Shimoda
178, Hario, Asahi-mura, Higashitikuma-gun Nagano, 390-1103, Japan
Fax: +81-263-99-3532
E-mail: c-shimo@mtd.biglobe.ne.jp
JN Homepage http://www2s.biglobe.ne.jp/~JN-/index.html
Chris Steyaert, VVS
Kruisven 66, B-2400 Mol, Belgium
tel: +32 (14) 31 51 04
E-mail: steyaert@vvsdot be
Compuserve: 72650,3513
Garfield Tsao (BM2EQB)
LonTan Observatory, LonTan, TauYan, Taiwan
E-mail: tsao5916@ms17.hinetdot net
http://www.geocities.com/Eureka/Office/1528 (in Chinese)
Jeroen Van Wassenhove, VVS
's Gravenstraat 66, B-9810 Nazareth, Belgium
tel: +32 (9) 385 61 09
E-mail: 100101.734@compuserve.com
Ilkka Yrjola
Jukolantie 16, FIN-45740 Kuusankoski, Finland
E-mail home: oh5iy@sci.fi
http://www.sci.fi/~oh5iy/
Call: OH5IY, packet radio: OH5IY@OH5RBG.#KVL.FIN.EU
--
Christian Steyaert (RMOB9906) 8 July 1999
--
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