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(meteorobs) Radio Meteor Obs. Bull. August 1999
Radio Meteor Observation Bulletin No. 73 September 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.
August 1999
UT | 1 2 3 4 5 6 7 8 9 10 11 12 13
----+---------------------------------------------------
0 | 6 21 21 18 11 12 10 8 2 1 ECL 42 31
1 | 7 21 27 19 16 8 8 7 3 0 ECL 53 30
2 | 5 14 21 13 13 9 13 10 0 4 ECL 25 61
3 | 9 7 11 7 6 6 9 8 1 2 ECL 12 40
4 | 8 10 11 3 4 6 3 12 3 0 ECL 10 27
5 | 6 7 6 5 8 7 2 7 1 1 ECL 23 26
6 | 5 16 10 12 9 8 8 5 2 0 ECL 37 29
7 | 2 13 6 12 13 10 4 7 0 0 ECL 53 12
8 | 6 6 5 7 9 14 9 3 1 2 ECL 23 47
9 | 4 3 9 10 6 2 7 5 1 4 ECL 14 47
10 | 4 5 0 6 6 3 3 3 0 2 ECL 33 35
11 | 5 3 2 14 1 4 6 4 1 ECL ECL 14 23
12 | 6 1 1 4 3 15 1 0 1 ECL ECL 12 14
13 | 9 3 3 6 3 2 2 3 0 ECL ECL 15
14 | 6 1 2 4 2 0 6 5 1 ECL 2 58
15 | 0 3 2 1 7 0 1 2 1 ECL 14 25
16 | 10 1 2 2 1 4 2 2 0 ECL 19 13
17 | 9 0 12 0 4 0 1 0 1 ECL 18 12
18 | 23 2 2 0 4 4 0 0 0 ECL 18 26
19 | 40 1 4 0 0 5 2 0 1 ECL 54 39
20 | 5 4 4 13 3 4 1 1 0 ECL 24 66
21 | 5 3 4 6 4 4 1 1 0 ECL 22 15
22 | 6 10 15 4 27 10 5 1 0 ECL 37 35
23 | 17 14 19 7 8 11 6 0 0 ECL 32 24
----+---------------------------------------------------
UT | 1 2 3 4 5 6 7 8 9 10 11 12 13
August 1999
Note:
. on August 10, I stopped the system to make some tests during the
eclipse. The result are on: http://www.redestb.es/personal/ea3btz/
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
August 1999
Number of meteors heard in one hour interval
| UT
Aug | 10h 11 12 13 14 15 16 17 18 19 20 21 22 23 00
----+-----------------------------------------------------------
3 | - - - - - - - - - - - - - - -
4 | - - - 1* 8* 1* - - - - - - - - -
10 | 6 12 7 34 28 - - - - - 3 3 - - 2
11 | - - - - - 6 - - - - - - - - -
12 | - - - - - - - 7 11 4 2 8 - - -
13 | - - - - - - - - - - - - - - -
14 | - - - - - - - - - - - - - - -
15 | - - - - - 4 - - - - - - - - -
16 | - - - - - - - - - - - - - - -
17 | - - - - - - - - - - - - - - -
18 | - 4 21 24 14 - - - - - - - - - -
19 | 3 15 9 8 5 4 - - - - - - - - -
26 | - - - - - - - 6 3 2 - - - - -
27 | - - - - - - - - - - - - - - -
28 | 2 3 2 - - 2 - - - - - - - - -
29 | - - 1 7 8 3 - - - - - - - - -
30 | - 2 3 6 - - - - - - - - - - -
----+-----------------------------------------------------------
| 10h 11 12 13 14 15 16 17 18 19 20 21 22 23 00
| UT
Aug | 01h 02 03 04 05
----+-------------------
16 | - 6 - 16 17
Notes:
. no corrections for radiant position made to the counts.
. ( - ) means no observations made.
. * = Interference.
.
Mike Boschat
---------------------------------------------------------------------------
Observer: Eisse Pieter Bus
Location: Ondrejov, Czech Republic (14 47' E, 49 54' N)
Frequency: 69.92 MHz
Transmitter Location: Lublin, Poland, 10 kW, distance 570 km
Antenna: Folded Dipole, geographical azimuth 72 deg (ENE),
elevation 17 degrees.
Receiver: Bearcat UBC 860XLT Scanning Radio, sensitivity: 0.5 uV
Observation method: Listening and counting in 5-minute intervals.
Uncorrected counts of all reflections on 12/13 August 1999.
Starting at UT:
18h00m 19h00m 20h00m 21h00m 22h00m 23h00m 00h00m
37 60 79 64 103 100 48
Uncorrected counts of long-duration reflections >1 second
on 12/13 August 1999.
Between brackets the total reflection-time in minutes.
Starting at UT:
18h00m 19h00m 20h00m 21h00m 22h00m 23h00m 00h00m
20(2.7) 19(1.5) 36(3.2) 31(4.1) 52(5.2) 58(11.6) 24(2.6)
Notes:
. after correction for 'dead-time', 'observability function' and 'sporadics',
the maximum of the 'new filament' is calculated on August 12 at about
23h30m UT = Solar Longitude 139.82 (J2000).
It is interesting to note that the peak of long-duration reflections observed
in 1996, 1997 and 1998 around Solar Longitude 139.70 seems almost completely
vanished.
Peter Bus
---------------------------------------------------------------------------
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].
August 1999
Raw counts of reflections with a duration of at least 0.027 s
during one hour interval starting at UT:
Aug |
1999 | 20h 21 22 23 00 01 02 03 04 05 06 07 08
------+-----------------------------------------------------------------
1- 2 | 70 70 81 157 192 125 153 78 ? ? ?
2- 3 | 94 112 155 111 115 145 149 209 120 ? 91
3- 4 | 97 118 145 101 94 73 87 114 125 510
4- 5 | 138 165 ? 93 133 140 189 149 160 ? 184
5- 6 | 121 ? 92 ? 178 182 154 227 106 113 ?
6- 7 | 86 ? ? 109 102 ? 141 164 144 188 165
7- 8 | 154 ? ? 96 115 141 133 239 117 97 39
8- 9 | 120 143 139 ? 178 170 158 163 102 251 188
9-10 | 71 94 111 110 98 174 190 144 163 257 66
10-11 | 65 90 96 119 206 192 152 217 175 149 130
11-12 | 131 158 126 127 186 152 293 273 225 263 207 318 279
12-13 | 291 308 214 131 399 343 455 457 359 397 180 109 164
13-14 | 289 188 131 148 143 215 316 159 210 205 193
14-15 | 195 199 166 141 271 180 199 232 318 175 109
15-16 | ? 110 112 122 113 153 192 193 197 ? ?
16-17 | 77 119 117 140 112 143 200 219 191 ? 171
17-18 | 85 103 105 96 96 118 144 141 172 155 96
18-19 |
19-20 | 41 79 73 95 150 103 116 191 174 161 105
20-21 | ? ? 98 108 65 61 74 144 129 101 127
21-22 |
22-23 | 49 61 56 92 75 65 94 108 121 ? 106
23-24 | 54 88 80 83 81 73 108 100 102 181 88
24-25 | 67 69 98 110 92 101 145 127 116 248 103
25-26 | 66 79 65 73 71 99 98 99 159 ? ?
26-27 | 41 86 101 65 59 63 72 99 86 103 144
27-28 | 51 51 58 94 62 90 167 187 166 ? ?
28-29 | 103 ? 97 62 99 107 116 157 182 90 74
29-30 | 53 62 60 61 74 61 93 52 15 16 54
30-31 | ? ? ? ? 92 100 153 166 158 ? 64
31-01 | 65 74 62 101 83 82 138 184 125 ? ?
------+-----------------------------------------------------------------
1999 | 20h 21 22 23 00 01 02 03 04 05 06 07 08
Aug |
Raw counts of reflections with a duration of at least 1.000 s
during one hour interval starting at UT:
Aug |
1999 | 20h 21 22 23 00 01 02 03 04 05 06 07 08
-----+------------------------------------------------------------------
1- 2 | 11 7 17* 28 36 18 31* 13 ? ? ?
2- 3 | 9 16 56* 27* 13 23 19 45* 17* ? 22*
3- 4 | 13 21 40* 35* 19* 7 15 18 38* ?
4- 5 | 47* 25 ?* 29* 25 21 35 13 44* ? 38*
5- 6 | 35* ? 32* ? 40* 31 28 ? 32* 41* ?
6- 7 | 9 ? ? 30* 14 44* 20 39* 29* 49* 48*
7- 8 | 43* ? ? 24* 24* 23 21 41 21 15 6
8- 9 | 28* 28 26 63* 31 38* 27 24 25* 57* 51*
9-10 | 16* 13 25* 29* 22* 40* 31 29* 32 67* 14*
10-11 | 7 14 13 22 55* 50* 25 55* 40* 35* 31*
11-12 | 31* 33* 26* 31* 36 28 58 40 62* 43 47* 106* 68*
12-13 | 76* 92* 68* 41* 115* 91* 155* 123* 80* 154* 53* 21 42*
13-14 | 69* 49* 20 45* 36* 51* 87* 42* 57* 44* 60*
14-15 | 42* 51* 33 18 60* 56* 38 43 76* 34 27*
15-16 | ? 16 9 16 12 24 35 27 26 ? ?
16-17 | 19* 20 23 31* 11 15 22 38 38 ? 30
17-18 | 15 13 13 17 19 12 25 20 26 27 26*
18-19 |
19-20 | 2 8 6 8 34* 16 15 33 27 23 15
20-21 | ? ? 15 12 13 11 12 19 16 11 69*
21-22 |
22-23 | 13* 7 6 7 12 2 12 14 14 ? 37*
23-24 | 7 12 9 10 15 6 9 10 17 69* 25*
24-25 | 28* 11 16 18 15 22* 25 23 16 88* 18
25-26 | 8 9 7 12 8 15 17 17 44* ? ?
26-27 | 7 12 34* 9 4 6 13 15 12 13 34*
27-28 | 2 6 6 31* 6 7 26 40* 51* ? ?
28-29 | 24* 42* 13 6 9 20 15 25 31 11 14
29-30 | 6 9 6 9 15* 7 17 14* 2 1 23*
30-31 | ? 22 ? ? 12 12 22 14 36* ? 22*
31-01 | 10 8 7 17 15 17* 19 35 14 ? ?
------+-----------------------------------------------------------------
1999 | 20h 21 22 23 00 01 02 03 04 05 06 07 08
Aug |
Notes:
. ? probably affected by sporadic-E, tropo, direct reception.
. * 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
(ED50 coordinates: 3 42' 32" E, 51 01' 25" N)
Antenna (2x): 4 elements horizontal Yagi, pointed East, elevation= 20 deg
Antenna amplifier: 10 dB gain
narrow band 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.
-------------------------------------------------------------
| Aug 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 | 93 153 75 107 82 142 119 169 149 150 179 155 455 249 137
1 | 137 106 106 114 119 116 152 191 236 208 162 198 391 286 193
2 | 156 155 138 145 119 160 135 127 148 149 108 240 431 238 167
3 | 193 206 165 182 202 186 208 223 192 217 424 224 163
4 | 186 119 129 162 150 180 149 172 194 153 162 370 243 231
5 | 155 142 32 153 76 116 40 178 216 125 204 271 252 125
6 | 95 69 37 124 149 95 76 121 214 141 264 296 280 149
7 | 84 71 42 96 81 101 48 149 158 129 177 328 259 162
8 | 127 106 42 120 31 91 142 102 185 124 149 245 184 203
9 | 81 54 52 87 64 122 119 50 208 266 258 224
10 | 63 41 103 91 146 120 39 150 126 183 298 309 290
11 | 54 53 72 93 97 78 113 59 178 65 199 262 201 158
12 | 60 45 17 47 48 61 82 93 97 179 121 206 164 162 245
13 | 52 50 48 25 38 38 113 64 69 103 119 214 309 111 157
14 | 56 21 26 33 41 31 64 34 35 171 63 157 67 121 112
15 | 19 46 32 29 68 31 33 38 84 76 73 139 53 39
16 | 18 26 48 50 56 59 25 62 62 46 127 129 129 51
17 | 19 31 45 24 58 30 64 60 61 72 93 60 25
18 | 64 21 50 36 52 37 50 54 93 141 91 27
19 | 66 20 64 119 47 53 25 51 130 40 100 75 112
20 | 44 42 32 112 43 54 47 48 37 66 108 115 194 108
21 | 40 63 46 45 38 45 55 37 65 68 169 120 137 40
22 | 62 42 81 52 51 49 58 69 69 85 89 187 85 153 54
23 | 104 54 67 81 82 108 105 125 105 77 86 242 135 108 52
---+------------------------------------------------------------
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
---------------------------------------------------------------
| Aug 1999 | 10x % reflec. time | horiz: day | vert: time UT |
--------------------------------------------------------------------
| 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
---+----------------------------------------------------------------
0 | 75 67 69 60 73 49 60 38 48 70 45 74 52 90 55 62
1 | 78 126 88 81 82 70 65 46 76 72 79 61 62 78 60 85
2 | 107 134 90 84 59 53 71 54 92 78 90 69 112 67 117 88
3 | 112 149 104 97 81 96 124 55 89 74 73 61 97 79 79 96
4 | 97 102 128 119 86 96 69 62 103 82 63 67 67 111 83 107
5 | 86 75 105 73 77 95 82 52 47 86 51 98 61 63 58 73
6 | 76 122 68 78 71 64 50 57 57 41 74 45 80 57
7 | 106 67 73 93 92 47 52 51 29 50 84 68 70
8 | 65 61 67 83 64 76 46 35 55 34 63 56 46
9 | 101 82 61 74 42 50 52 50 30 49 89 67 74
10 | 89 64 68 64 46 74 60 18 27 48 65 58 53
11 | 104 45 71 51 38 63 38 24 38 25 34 40 48 37 41
12 | 44 50 50 24 43 35 28 20 22 44 33 68 29 54
13 | 66 32 26 25 25 27 20 37 18 12 13 27 44 29 72
14 | 93 42 20 18 23 58 25 36 21 30 18 21 30 67 36
15 | 53 37 19 20 18 26 22 24 14 28 14 19 24 25 20 12
16 | 48 35 16 21 43 25 21 27 18 20 28 20 27
17 | 36 25 40 36 22 45 31 14 22 15 26 19
18 | 56 20 27 16 17 11 22 25 18 17 21 26 17
19 | 34 21 35 21 21 28 19 29 21 27 23 31
20 | 41 50 35 29 27 30 27 39 34 41 22 27 32 38
21 | 43 36 68 63 49 35 39 31 26 28 36 40 24 30 37
22 | 34 33 37 53 29 55 31 43 22 24 33 25 30 24 32 34
23 | 52 58 66 47 39 54 41 54 42 34 34 35 44 49 49 46
---+----------------------------------------------------------------
| 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Notes:
. very clear Perseids activity
. apparently no influence of the solar eclipse
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.
| Aug 1999
UT| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
---+----------------------------------------------------------------
0| 18 26 9 15 11 12 13 19 6 12 16 29 16 8 4
1| 22 22 17 19 9 10 14 13 11 5 21 34 15 8 2
2| 28 20 11 24 14 15 16 13 13. 16 19 29 22 8 3
3| 12 27 18 10 15 11 15 11 10 10 22 18 23 6 10
4| 13 28 6 10 12 8 9 12 17 11 14 21 7. 6 2
5| 5 13 12 5 11 5 8 9 9 11 10. 10 22 15 3 3
6| 0. 10 7 4 7 5 8 7 13 9 1 17 17 28. 1 4
7| 10. 6 6 6 8 6 9 10 5 11 10 16 6. 9 2
8| 0. 6 7. 4 14 10 6 4. 10 9 13 15 11. 5 4
9| 8. 7 11 6. 11 12 4. 6 10 7 10 15. 10 3 2.
10| 6. 10 2 6 5 2 2 6 4 8 11 10 6.
11| 7 8 10 4 6. 2 6 6 2 14 14 9 3 0
12| 2 5 6 3 5 0 2 4 7 7 6 3 6 2
13| 2 3 2 0 3 0. 2 7 3. 11 7 6 4 1 2
14| 1 4 0 3 1 2 1 2 2 3 1 1 4
15| 1 3 1 1 0 1 4 3 3 6 3 4 0 6 2
16| 0 2 1 0 1 2 3 1 2 5 2 3 3 0 0
17| 0 3 0 1 1 6 6 1 5 2 4 1 2 0
18| 1 2 1 2 5 2 4 3 1 1 2 5
19| 1 1 0. 0 3 8 4 3 2 3 2 8.
20| 9. 3 3 3. 1 4 3 0. 2 3 6 13 2 7 1
21| 2 6 4 4 7 3 6 3 9 8 3 11 8 3 3
22| 4 9 1 9 3 5 4 7 3 6 7 24 5 2 2
23| 13 12 12 7 3 5 7 9 7 4. 17 28 4 4 5
---+----------------------------------------------------------------
UT| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
| Aug 1999
| Aug 1999
UT| 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
---+-----------------------------------------------------------
0| 0 9 15 3 3 10 1 5 4 2 4 4 4
1| 3 6 6 4 3 2 3 2 6 4 4 13 4
2| 7 8 1 3 6 5 3 4 2 1 6 3 5 7
3| 7 5 5 2 4 1 3 4 2 2 4 4 4 6
4| 3 4 4 8 4 5 0 4 7 3 7 3 5 6
5| 3 8 8 3 4 1 2 1 7 3 4 8. 3
6| 3 7 4 5 1 1 1 4 6 6 4 6 3
7| 1 3 5 7 1 5 3 4 2 3 6 2 10
8| 8 1 7 4. 4 2 9 7 2 4 2 6
9| 2 5 0 6 4 0. 3 2 4 1 3
10| 5 2 2 1 5 0. 5. 0 0 2 3 0
11| 2 2 3 1 4 1 3 1 1 3 2 0
12| 1 3 0 0. 0 2 2 2 1 5 3 7 3
13| 1 0 3 2 1 0 1 2 2 3 2 0. 4 2
14| 1 0 4 1 0 1 0. 2 0 0 0 3 1
15| 0 3 1 0. 1 1 0 0 1 4 1 0. 0 1
16| 3. 0 0 3 0 1 0 1 1 0 0 0. 0 3
17| 0 2 3 0 0 1 2. 1 0 1 0 1
18| 0 1 0 1 0 1 2 0 0 2 2 0
19| 1 2 0 0. 0 1 1 2 1 1 0 1 1
20| 1 3 0 3 1 0 0 1 0. 2 1 1 1
21| 0. 2 2 2 0. 1 1 0 1 2 3 0 0
22| 1 5 6 3 1 1 0 1 3 1 5 2 1 1
23| 6 3 2 2 3 3 3 1 5 3 3 10 0 1
---+-----------------------------------------------------------
UT| 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
| Aug 1999
Propagation overview for August 1999
E : sporadic-E or E-layer propagation
F : FAI (field aligned irregularity)
- : propagation only via meteor echoes.
(blank) : no data available
| Aug 1999
UT| 1 2 3 4 5 6 7 8 910111213141516171819202122232425262728293031
---+--------------------------------------------------------------
0| - - - - - - - - - E - - - - - - - - - - - - - - - - - - -
1| - - - - - - - - - - - - - - - - - - - - - - - - - - - -
2| - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
3| - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
4| - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
5| - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
6| E - - - - - - - - - - - - - - - - - - E - - - - - - - - - -
7| E - - - - - - - - - - - - E - - - - - E - - - - - - - - - -
8| E - - E - - - E - E - - E E - - - - - E E - - - - - E - - -
9| E - - E - - - - - E - - E - - E - - - E E - - - E - E - - -
10| E - - E - - - - - - - - - - E E - - - E E - - - E - - - - -
11| - - - E - E - - - - - - E - - E - - - E E - - - - - - - - -
12| E - - - - E - - - - - - - - E - - - E E - - - - - - - - -
13| E - - E - - - - - - - - - - - - - - - - F - - - - - - - - -
14| E E - E E - - - - - - - - - - - - - - - - - E - - - - - - -
15| - - - E - - - - - - - - - - - - - - - - E - - - - - - - - - -
16| - - - E - - E - - - - - - - - - - - - - E - - - - - - - E - -
17| E - - E E - - - - - - - - - - - - - - - E - - - - - - - - - -
18| E - - E E - - - - - - - F - - - - - - - E - - - - - - - - - -
19| E E - E E F - - - - - - F - E - - - - E E - - F - - - - - -
20| E F - F E E - - - - - - - - F F F - - E E - - E - - - - -
21| E - - - - - E - - - - - - - - F - - - F - - E - - - - - -
22| E - - F - - - - - - - - - - - - - - - - - - E - - - - - -
23| - - - - - - - - - - - - - - - F - - - - - - - - - - - - -
---+--------------------------------------------------------------
UT| 1 2 3 4 5 6 7 8 910111213141516171819202122232425262728293031
| Aug 1999
Note:
. the Perseids showed up well as usually on Aug 12-14.
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
KWFM FM 90 kW, Tucson AZ, dist 798 km, geogr azim 233 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
July 1999
Jul| 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 | 15 15 6 16 21 13 10 14 18 10 7 9 18 10 22 40 47 37 23 15 11 15 18 22
2 | 16 21 11 20 18 17 13 11 12 27 29 24 14 18 2 7 11 19 16 27 77 47 18 24
3 | 9 16 12 20 12 8 14 13 12 9 16 8 18 7 16 39 20 32 13 40116 29 83123
4 | 13 9 1 3 5 13 7 11 5 7 7 8 4 6 13 27 25 20 12 7 12 8 7 9
5 | 15 9 10 11 8 11 14 4 8 4 7 11 9 8 14 24 15 14 10 6 12 14 21 19
6 | 74140136144124 51 13 9 12 12 10 10 8 7 18 29 18 18 9 18 10 15 14 16
7 | 19 28 14 17 29 11 14 10 10 8 10 15 8 6 9 24 32 17 12 9 12 11 18 13
8 | 13 21 10 6 19 12 13 14 13 12 8 14 5 5 16 26 22 27 43101 28 15 11 9
9 | 8 29 46 12 9 12 12 6 9 12 10 12 13 11 13 22 28 26 5 10 9 6 14 8
0 | 10 10 7 7 5 10 5 12 6 12 10 4 7 7 11 28 36 17 6 17 15 8 13 9
11 | 27 14 17 13 9 7 10 8 7 7 10 7 7 2 14 26 26 17 21 8 7 12 17 15
12 | 14 14 7 20 9 10 14 11 14 3 9 15 15 11 13 20 26 21 15 17 40 17 15 10
13 | 6 11 15 14 22 25 15 10 14 15 9 12 9 8 14 34 27 20 14 12 22 18 15 14
14 | 4 21 12 20 24 18 13 13 11 16 7 17 13 11 25 34 34 21 12 10 15 13 19 10
15 | 6 17 14 15 17 15 8 9 15 8 19 15 10 15 18 30 25 17 14 11 11 17 30 22
16 | 23 17 20 23 29 20 10 17 16 18 16 16 10 7 13 30 19 22 18 28 35 36 16 19
17 | 16 10 3 14 9 14 5 10 10 6 11 12 8 9 12 29 18 17 14 9 16 8 48 27
18 | 20 17 22 7 5 5 7 6 7 4 9 6 5 9 13 33 18 17 22 19 13 11 23 19
19 | 24 15 20 24 9 9 11 7 14 10 10 6 4 10 20 27 29 21 21 22 14 13 17 20
20 | 36 14 15 21 21 14 13 18 10 16 24 16 9 9 22 34 28 20 14 20 48 58 39 13
21 | 11 7 14 24 14 15 11 13 11 16 19 10 9 11 24 33 33 37 15 25 12 43 20 10
22 | 6 14 16 10 10 6 6 10 6 12 11 7 8 7 14 29 18 19 14 8 5 6 10 19
23 | 20 16 14 24 13 9 18 28 14 21 16 15 10 11 18 31 19 30 13 14 86 34 78 27
24 | 12 14 15 10 30 16 25 41 13 12 19 13 14 13 12 31 25 22 7 14 13 23 48 18
25 | 23 17 16 22 9 21 17 19 16 8 12 16 13 15 12 39 33 24 16 14 12 20 16 21
26 | 25 16 23 16 15 14 19 25 23 15 16 11 12 6 16 24 30 17 23129108121118 34
27 | 6 4 4 7 17 24 23 19 25 21 13 20 15 13 19 32 31 20 12 14 17 10 17 11
28 | 19 26 22 35 26 24 24 30 24 21 17 17 19 12 21 38 37 23 18 11 14 12 32 13
29 | 22 20 18 22 34 32 32 26 31 30 23 23 24 17 22 31 30
----+------------------------------------------------------------------------
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
Jul| UT
Signal duration distribution for the above period
Duration (s) Number
< 0.1 3646
0.1 to 0.3 3359
0.3 to 1 2466
1 to 3 1818
3 to 10 1252
10 to 30 188
> 30 6
Note:
. lightning noise on July 3, 4, 8 and 26.
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
Aug|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST
Aug|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|75 88 68 91 77 70 58 47 29 34 31 n 24 28 18 20 18 11 10 8 23 18 55@65
2|64 86 82 69 84 72 53@36 e 25 21 24@25 25 13 24 15 24 19 17 18 31 49 --
3|71 71 82 71 72 61 60 40 34 33 22 38 23 18@27 23 e@13 18 15 20 35 48@68
4|71 70 51 57 68 65 46 55 34 25 19 31 29 31 26 23 18 16 15 17 18 48 37@57
5|55 61 68 64 68 77 55 56 44 37@30 e@35 19 21 17 e e e 15 16 40 52@57
6|74 66 83 57 66 56 61 55 43 24 26 e e e e e@12 17 16 13 22 40 43@56
7|58 74 72 54 70 67 57 43 28 29 n n 18 n@16 21 24 13 21 16 29 35 49 --
8|65 60 59 57 69 61 53 67 40 25 29 20 22 31 29 30 19 13 14 15 28 36 51@55
9|56 62 67 65 71 69 69 52 51 35 34 23 28 43 24 28 26 17 20 21 26 37 60@56
10|61 66 77 69 66 46 50 59 34 36 32 21 31 e@27 25 28 21 19 18 23@35 45@50
11|65 74 74 98 65 72 60 56 38 35 41 28 25 29 27 31 16 26 14 22 26 30 44@50
12|55 61 58 68 72 80 63 55 38 42 29 33 29 28 21 28 26 13 21 14 17 38 53@33
13|74 64 75 96107 89 79 84 51 42 35 39 29 42 26 27 27 22 16 22 20 30 49@62
14|52 56 73 95 94 71 79 68 53 46 32 e@18@44 24 29 16 e e 11 25 34 46 --
15|65 58 69 72 67 53 52 54 44 26 28 33 29 28 27 20 16 19 15 19 25 32 36@49
16|53 54 53 65 60 49 43 54 27 33 33@14@21 e 21 23 19 11 15 19 25 37 39@48
17|61 54 63 51 45 59 55 38 28 32 33 17 27 23 25 22 11 10 16 19 22 37 42@50
18|60 61 55 61 50 55 43 34 45 36 23 32 17 27 16 18 16 12 8 16 20 24 37@40
19|45 50 56 56 61 50 35 35 24 34 22 22 28 36 24 30@20 14 13 12 14 34 36@38
20|45 51 47 48 41@43 54 34 37 28 28 25 35 34 14 22 21 17 15 11 17 35 38@48
21|44 38 55 47 50 36 48 43 35 27 29 27 21 32 29 25 24@16 17 19 18 32 32@42
22|31 42 43 41 49 46 38 34 40 34 23 22 19 27 20 24 14 11 12 17 16 37 43@45
23|40 32 47 49 43 51 41 30 40 26 19 19 27 24 17 29 13 12 10 10 17 40 32@42
24|30 35 40 43 44 39 43 38 49 28 20 24 24 31 22 23 17 24 15 15 21 25 42@50
25|34 42 50 50 48 56 40 35 35 16 28 23 34 23 32 22 8 11 11 18 21 24 34@38
26|34 46 39 33 34 40 45 45 40 23 e e 5 28 19@21@20 14 11 16 20 34 44 --
27|28 27 49 52 42 52 48 44 40 32 29 24 27 18 25 26 17 10 20 13 29 30 39@45
28|43 39 41 39 47 41 41 48 33 16 21 14 24 19 20 21 18 13 13 15 28 31 40@39
29|45 n n 53 55 48 55 33 27 e 17 21 15 16 10 17 13 9 11 9@35 25 37@48
30|40 47 52 45 54 47 51 25 22 28 23 16 19 21 17 19 16 19 15 10 27 38 26@35
31|40 37 40 37 54 41 49 36 40 28 12 17 22 25 31 14 17 13 15 19 18 28 35@42
---+-------------------------------------------------------------------------
- Aug|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
Aug|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
Aug|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST
Aug|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| 5 7 6 9 10 9 3 2 1 4 2 1 2 1 6 1
2| 7 17 18 11 9 7 8 2 1 2 1 1 1 2
3| 6 6 8 10 9 5 11 3 6 1 1 1 5 6
4|10 6 11 5 10 8 10 7 2 2 1 3 2 3 2 2 1 3 5
5| 8 6 12 8 9 17 4 5 5 1 1 1 1 1 1 1 1 2 2 3
6| 5 14 14 7 9 10 7 8 4 2 1 2 1 2 3 2
7| 5 3 10 5 14 14 6 4 2 3 1 2 2 10
8| 2 11 9 9 7 11 8 4 3 1 2 1 3 2 1 2 1 1 4 7
9| 5 7 5 11 15 9 12 11 10 4 2 5 4 6 2 1 2 1 1 3 3 3
10| 6 7 7 14 7 14 9 8 3 1 2 3 2 1 1 2 1 1 1 2 4
11| 7 8 15 14 7 18 8 10 8 3 3 1 3 2 1 1 1 1 2 3
12|10 7 10 13 18 23 17 12 10 7 9 5 4 2 4 2 1 1 2 2
13|19 14 17 31 37 38 34 24 22 11 10 7 1 1 1 2 1 1 3 1 2
14|10 8 21 30 28 21 31 19 15 5 7 1 5 2 6 --
15| 5 14 14 14 18 12 9 15 6 3 1 2 1 5 3 2 1 3 2 4
16| 6 12 5 9 16 4 9 8 1 2 1 1 3 1 1 3 3
17| 5 7 2 1 3 4 7 9 2 5 1 1 1 2 1 2 4
18| 6 4 5 8 2 2 3 3 4 2 1 1 1 5 1 1 1 1
19| 2 10 7 5 5 3 1 3 1 1 2 1 2 1
20| 3 4 7 4 3 10 7 1 2 1 2 1 1 1 1 2
21| 1 4 7 6 3 1 4 4 3 1 2 1 3 1 1 2
22| 2 5 6 3 7 7 6 3 5 1 1 3 1 1 1 2 1 1 1
23| 2 1 2 3 7 4 2 1 1 2 2 1 4 2 1 1 4
24| 2 3 1 2 8 4 3 3 2 2 2 1 2 1 1 2
25| 3 4 2 4 4 5 4 1 1 3 2 3 4 1 1 4 2
26| 1 6 4 5 2 3 7 4 2 2 1 1 1 1 2 1 3 2 --
27| 1 3 6 7 4 4 4 5 3 1 3 1 1 2 1 2 1
28| 3 2 2 3 6 2 3 5 4 2 1 1 1 1 3 3
29| 4 5 7 6 11 1 1 2 1 1 1 1 1 2 1 4
30| 5 2 5 7 1 7 2 1 1 6 1 2 1 1 2 2 2
31| 4 3 1 1 1 4 3 3 1 1 1 1 1 1 2 2
---+-------------------------------------------------------------------------
- Aug|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
Aug|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
Aug 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
----------------------------------------------------------------
Count 10 7 11 13 7 24 18 22 20 9 19 31 98 67 20
Aug 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
--------------------------------------------------------------------
Count 9 8 3 3 6 5 7 3 4 4 8 4 5 7 1 3
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 or interference.
e: contamination due to sporadic E opening.
f: no data available due to TX or RX failure.
JST = UT + 9 hours
Sadao Okamoto
---------------------------------------------------------------------------
Observer: Garfield Tsao (BM2EQB)
Location: LonTan Observatory
LonTan, TauYan, Taiwan R.O.C. (121 14'37" E, 24 52'54" N by GPS)
Frequency: 50.0169 MHz USB mode 3 kHz width.
Antenna : Comet made 50MHz Yagi HB 4 element (gain 10.3 dBi)
astronomical azimuth 225 deg (=NE), elevation 7 deg.
Transmitter: MIYAZAKI University Japan, USB mode, 50 W (24 hours),
distance about 1125 km from Lon Tan.
Receiver: Icon PCR-1000 computer controlled all band receiver
Sensitivity: 0.25 uV for 10 dB S/N for USB mode
Observing method: the beacon 880 Hz voice signal (by FFTDSP) is received
by a low frequency filter (880 Hz) and fed into the D/A converter
and computer in real time.
Data sampling system: using an 8 bits A/D card to PC/AT and Qbasic program
with 1/8 second sampling interval to store the> 1.0 s reflections.
August 1999
1999 |00h01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23LT
Aug |16h17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15UT
-----+-------------------------------------------------------------------------
1 | E 40 42 46 45 42 35 13
7 | 9 9 4 5 E E E 29
8 |45 66 53 54 46 45 37 26 21 18 23 E 9 5 12
12 | 8 11 15 E E 36 43
13 |38 E 44 94110 90 78 64 59 35 36
13 | 0 0 1 4 5 7 2 3 1 1 0 0 0 0 0 -- > echo > 60 s
------------------------------------------------------------------------------
21 | 8 8 10 3 17 15 12 17 22
22 |26 20 41 19 32 34 25 19 14 14 12 10 10 6 10
28 | E E E E 3 7
29 |25 20 20 21 28 23 30 26 23 21 12 10 3 11 E
----+-------------------------------------------------------------------------
Aug |16h17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15UT
1999 |00h01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23LT
Note:
. "E" mark= E layer propagation and E layer sporadic of reflection.
. Perseids on Aug 12-13
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).
delta Aquarids 1999
Meteor counts in one hour intervals starting at:
UT | 27 Jul 28 Jul 29 Jul 30 Jul
----+----------------------------------
0 | 221 299 288 324
1 | 221 312 318 297
2 | 248 299 317 271
3 | 242 367 270 272
4 | 209 392 231 370
5 | 247 268 250 249
6 | 192 246 237 226
7 | 192 271 208 274
8 | 186 306 167 205
9 | 217 206 186 164
10 | 226 190 254 221
11 | 175 178 186 142
12 | 235 206 196 153
13 | 182 195 195 171
14 | 197 176 130 127
15 | 173 158 152 129
16 | 159 144 145 112
17 | 136 126 180 119
18 | 129 115 126 104
19 | 159 141 148 203
20 | 180 172 195 144
21 | 166 162 224 173
22 | 227 205 224 292
23 | 237 285 270 217
----+----------------------------------
UT | 27 Jul 28 Jul 29 Jul 30 Jul
. July 29: Aurora on 144 MHz
. July 30: Aurora on 88 and 144 MHz
Perseids 1999
Meteor counts in one hour intervals starting at:
UT | 11 Aug 12 Aug 13 Aug 14 Aug
----+----------------------------------
0 | 500 636 1248 830
1 | 412 620 1212 730
2 | 339 651 1362 640
3 | 341 780 1317 739
4 | 513 592 1016 808
5 | 557 1022 1324 771
6 | 547 865 1359 885
7 | 597 780 1185 774
8 | 566 647 1039 638
9 | 621 622 889 753
10 | 618 606 993 667
11 | 409 770 958 503
12 | 444 639 791 476
13 | 505 690 860 319
14 | 471 613 833 393
15 | 235 385 657 189
16 | 497 419 867 275
17 | 315 396 432 278
18 | 324 453 343 332
19 | 401 398 376 251
20 | 478 694 443 371
21 | 525 643 344 550
22 | 382 1008 609 760
23 | 470 1263 610 788
----+----------------------------------
UT | 11 Aug 12 Aug 13 Aug 14 Aug
Notes:
. 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
Eisse Pieter Bus
Groningen, Netherlands
E-mail: epbus@wxsdot nl
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
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 (RMOB9908) 8 September 1999
--
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