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(meteorobs) Radio Meteor Obs. Bull. May 1999
Radio Meteor Observation Bulletin No. 70 June 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.
| May 1999
UT | 5 6 7 8 9 10 11 12 13 14 15
----+--------------------------------------------
0 | 6 6 13 9 4 8 28 43 47 2
1 | 4 6 16 5 8 16 19 43 37 34
2 | 0 1 13 3 5 6 26 34 27 52
3 | 3 5 13 4 5 7 13 48 34 16
4 | 6 2 27 4 2 2 7 51 62 16
5 | 11 10 21 7 6 8 4 54 29 14
6 | 10 8 21 13 9 11 22 28 15 20
7 | 18 13 17 19 17 8 47 12 38 29
8 | 16 13 16 5 8 15 10 13 34 47
9 | 11 19 8 11 29 9 16 66 17 15
10 | 8 7 15 9 8 21 29 30 6 28
11 | 10 6 12 10 4 8 20 1 2 55
12 | 1 3 1 25 11 3 4 23 39 20 3
13 | 1 0 6 44 2 8 1 73 47 61 5
14 | 1 1 35 48 0 1 30 45 62 17 0
15 | 1 2 15 9 3 1 30 32 38 0 21
16 | 2 2 16 3 1 4 11 31 21 11 61
17 | 3 1 0 3 2 2 17 31 12 7 75
18 | 1 6 2 2 3 0 14 3 31 13 29
19 | 1 2 3 2 1 2 2 25 51 31 47
20 | 2 4 2 2 4 1 10 15 73 63 73
21 | 2 3 2 1 5 1 26 14 50 43 32
22 | 4 2 8 6 3 2 62 25 68 19 45
23 | 1 0 2 4 7 8 24 29 32 22 37
----+--------------------------------------------
UT | 5 6 7 8 9 10 11 12 13 14 15
| May 1999
| May 1999
UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
----+-----------------------------------------------------------------
0 | 3 16 8 6 7 1 1 3 74 97 6 3 1 1 * 6
1 | 19 7 4 12 10 2 2 5 34 32 5 6 4 7 * 3
2 | 36 13 5 2 2 1 2 2 2 3 0 5 3 6 * 12
3 | 46 18 4 2 8 0 2 3 1 3 1 2 2 5 * 6
4 | 8 13 4 1 3 1 1 4 2 4 0 4 3 2 * 7
5 | 10 5 4 5 2 1 2 1 6 3 3 3 2 1 * 7
6 | 15 0 3 5 3 3 2 8 3 2 0 3 6 4 * 5
7 | 29 7 8 3 11 1 2 7 5 10 1 6 4 3 * 20
8 | 32 15 17 13 10 9 8 8 3 1 4 11 1 4 * 13
9 | 38 19 23 5 26 19 8 4 8 22 0 10 5 7 * 11
10 | 13 25 6 5 27 14 15 4 6 29 2 8 4 7 * 9
11 | 37 22 56 1 14 14 6 1 6 1 1 15 3 5 * 8
12 | 44 6 41 3 0 1 1 1 46 1 1 0 23 5 * 0
13 | 39 1 41 0 0 1 0 1 1 2 5 0 1 * 1 2
14 | 5 9 46 0 0 1 2 1 0 0 1 0 1 * 1 7
15 | 43 2 43 1 2 0 1 2 0 0 2 0 3 * 3 6
16 | 21 3 25 0 3 0 4 5 8 0 3 0 2 * 2 12
17 | 19 3 8 10 3 2 3 4 4 4 5 1 3 * 2 17
18 | 29 8 20 7 3 1 1 3 4 0 3 3 3 * 3 6
19 | 42 2 20 0 0 2 1 1 0 0 3 0 21 * 1 10
20 | 39 1 8 2 24 0 1 22 49 2 2 6 34 * 30 4
21 | 35 6 1 2 0 0 1 22 10 0 1 3 10 * 21 2
22 | 52 1 6 1 1 1 23 65 0 2 1 57 * 6 6
23 | 32 4 11 17 2 5 1 3 20 2 7 2 3 * 3 7
----+-----------------------------------------------------------------
UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
| May 1999
Notes:
. sporadic E between May 12-15 and FAI opening between May 20-23
. * incoherent data stored
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
May 1999
Number of meteors heard in one hour interval
| UT
May | 09 10 11 12 13 14 15 16 17 18 19
----+--------------------------------------------
1 | - - - 7 - - 15 - 17 - -
2 | - - - - - - - 6 9 10 -
3 | - 4 7 5 - - - - - - -
4 | - - - - - - - - - 6 -
5 | - - - - - - - - - - -
6 | - - - - - - - - - - -
7 | - - - - - - - - - - -
8 | - - - - - - - - - - -
9 | - - - - - - - - - - -
10 | - - - - - - - - - - -
11 | - - 6 - - 12 27 11 - - -
12 | - - - - - 2 10 15 - - -
13 | - - 2 8 11 9 - - - - -
14 | - 12 8 34 17 31 29 - - - -
15 | - - - - - - - - - - -
16 | - * * * * * * * * * -
17 | - * * * * * * * * * -
18 | - * * * * * * * * * -
19 | - - - - - 8* 2* - - - -
20 | - - - - 2* 4* 4* 3* * * *
21 | - - - 5* 6* 4* * * * * *
22 | - * * * * * * * * * *
23 | - * * * * * * * * * *
24 | - - - 8* 5* 9* 18* 7* - - -
25 | - - - - - - 6* 8* - - -
26 | - - - 4* 2* 14* 7* - - - -
27 | - - 3* - 13* 15* - - - 5* 6*
28 | - - 3* 5* 8* 20 19 16 9 12 19
29 | - - - 4* 11* 12* 11* 7* - - -
30 | - - - - - - - - - - -
31 | - - - - - - - - - - -
----+--------------------------------------------
May | 09 10 11 12 13 14 15 16 17 18 19
| UT
Notes:
. no corrections for radiant position made to the counts.
. ( - ) means no observations made.
. * = Interference.
. # = Strong interference of unknown source.
. + = 1/2 hour observation only.
. stopped the observations on May 29, due to severe interference.
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].
May 1999
Raw counts of reflections with a duration of at least 0.027 s
during one hour interval starting at UT:
May | UT
1999 | 20h 21 22 23 00 01 02 03 04 05 06
------+-------------------------------------------------------
1- 2 | 48 39 85 59 47 49 78 126 116 43 24
2- 3 | ? 70 63 71 50 58 109 135 144 ? ?
3- 4 | ? 41 91 108 47 54 90 206? 215? ? ?
4- 5 | 50 45 69 56 52 38 96 138 272 175 217?
5- 6 | 56 44 60 69 61 88 107 208? 197? ? ?
6- 7 | 63 54 ? 85 49 73 109 169? 240? 277? 359?
7- 8 | 86 72 59 65 42 ? 115 ? ? ? ?
8- 9 | 54 69 49 64 43 59 86 135 159 141 169
9-10 | 44 56 33 47 47 47 105 145 130 ? ?
10-11 |
11-12 | 99 73 65 63 65 72 104 138 156 ? 181
12-13 | 75 46 66 48 74 79 96 ? 151 180? 163
13-14 | 53 58 61 64 51 65 107 134 ? 165 121
14-15 | 79 101 83 108 59 82 78 ? 147 ?
15-16 | 54 65 66 54 73 72 109 126 144 129 115
16-17 | 38 49 43 53 85 65 115 139 156 ? 176
17-18 | 51 53 45 49 41 62 112 114 94 157 94
18-19 | ? ? 58 64 81 75 90 139 118 84 25
19-20 | 66 55 60 73 70 66 104 132 157 111 129
20-21 | ? ? ? ? 50 ? 82 106 118 ? ?
21-22 | 76 66 51 66 55 84 86 131 115 ? ?
22-23 | 43 46 39 46 55 79 90 132 128 90 105
23-24 | 79 56 ? ? 71 74 106 129 182 ? ?
24-25 | ? ? 65 70 67 69 113 124 152 149 143
25-26 | 51 68 59 75 45 68 94 124 139 ? 99
26-27 | 55 ? ? ? 4 0 21 86 86 ? ?
27-28 | 76 46 27 43 42 46 48 56 114 165 97
28-29 | ? 45 ? 113 37 66 76 110 108 ? ?
29-30 |
30-31 | 43 19 45 69 58 62 111 85 89 157 ?
31- 1 |
------+-------------------------------------------------------
1999 | 20h 21 22 23 00 01 02 03 04 05 06
May | UT
Raw counts of reflections with a duration of at least 1.000 s
during one hour interval starting at UT:
May |
1999 | 20h 21 22 23 00 01 02 03 04 05 06
------+-------------------------------------------------------
1- 2 | 9 7 26* 13* 3 5 19 14 14 3 4
2- 3 | ? 35* 24* 25* 7 8 17 17 18 ? ?
3- 4 | ? 9* 22* 39* 10* 7 3 46? 63* ? ?
4- 5 | 7 10* 21* 11 9 2 12 25 69* 34 40
5- 6 | 9 6 10 17* 7 7 14 48? 53* ? ?
6- 7 | 18* 7 ? 33* 10* 8 13 22 32 79* 137?
7- 8 | 19 15* 15* 13 3 ? 8 18 45* ? ?
8- 9 | 10 12 8 6 2 3 8 19 13 10 14
9-10 | 5 13* 1 6 2 3 15 21 13 39* 51*
10-11 |
11-12 | 31* 11 15* 13* 8 4 10 23 41* ? 38*
12-13 | 25* 7 11 3 9 13 8 ? 11 27 23
13-14 | 10 6 14* 4 5 7 12 17 ? 19 19
14-15 | 16* 24* 19* ? 4 3 4 15 18 36
15-16 | 10 5 10 5 13 5 16 19 11 9 16
16-17 | 5 9 6 8 10 3 18 23 42* ? 56
17-18 | 14* 3 6 7 4 3 14 15 14 30 10
18-19 | ? ? 12* 17* 15 6 10 24 19 21* 5
19-20 | 15* 12* 12 18* 4 7 9 14 31 16 38*
20-21 | ? ? ? ? 7 8 6 15 25* ? ?
21-22 | 18* 11 8 12 3 9 6 17 15 ? ?
22-23 | 9* 6 2 8 6 6 12 17 11 7 20
23-24 | 18* 11 24* 31* 9 6 11 15 24 ? ?
24-25 | ? ? 14* 19 8 3 12 13 32* 32* 26
25-26 | 7 8 18* 30* 10* 6 8 14 42* ? 27*
26-27 | 10 ? ? ? 0 0 0 12 18* ? ?
27-28 | 18* 6 5 8 5 7 6 5 36* 61* 21*
28-29 | ? 14* ? ? 5 4 6 18 32* ? ?
29-30 |
30-31 | 5 2 8 14* 15* 6 21 10 22* 61* ?
31- 1 |
------+-------------------------------------------------------
1999 | 20h 21 22 23 00 01 02 03 04 05 06
May |
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
(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.
--------------------------------------------------------------
| May 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 | 21 25 26 17 14 24 35 31 29 22 29 42 35 30 25
1 | 21 25 33 22 14 35 45 106 29 30 59 33 35 38 34
2 | 46 61 45 35 44 65 88 114 53 80 68 72 53 50 65
3 | 64 101 103 114 136 125 130 184 100 127 122 102 100 103 104
4 | 41 94 104 102 99 117 120 119 99 139 120 100 104 122 81
5 | 43 33 137 76 81 108 198 135 134 157 143 127 119 89 103
6 | 68 50 119 95 111 159 170 347 181 136 126 174 121 127 128
7 | 73 60 65 93 118 116 116 251 147 122 144 130 123 130 87
8 | 47 33 47 138 94 162 98 232 207 104 124 100 116 112 104
9 | 58 57 64 93 111 114 110 155 145 63 109 108 86 102 89
10 | 54 87 59 74 70 84 91 99 106 93 134 113 100 110 90
11 | 53 72 58 49 57 78 49 109 72 66 52 68 94 82 82
12 | 40 60 30 41 29 24 14 52 45 22 36 32 69 47 51
13 | 17 32 20 21 14 25 19 56 48 19 27 17 51 39 26
14 | 24 25 16 15 18 22 7 23 33 15 17 25 40 19 35
15 | 13 19 46 15 14 20 13 23 17 16 22 26 15 15 12
16 | 9 14 12 14 12 13 14 13 16 13 30 19 16 8 11
17 | 14 10 8 4 9 13 13 12 10 13 16 19 11 11 12
18 | 20 14 12 11 6 14 10 9 13 15 17 18 10 11 11
19 | 7 13 13 7 14 12 16 17 51 11 25 15 15 13 14
20 | 8 12 14 8 17 18 25 16 11 16 20 19 10 15 8
21 | 13 16 9 17 14 20 12 16 10 19 17 18 15 13 6
22 | 10 10 11 5 22 10 15 13 11 18 23 16 18 13 12
23 | 23 20 10 7 13 19 24 16 14 25 26 16 20 24 14
---+------------------------------------------------------------
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
---------------------------------------------------------------
| May 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 | 12 30 29 23 7 17 27 27 30 23 12 15 43 30 42 31
1 | 21 17 19 11 11 15 30 28 31 19 19 22 47 35 34 51
2 | 47 20 40 24 27 30 48 27 38 32 42 53 41 79 61 146
3 | 67 53 60 96 33 55 64 52 52 50 97 76 68 93 124 110
4 | 77 37 42 52 55 8 61 65 98 59 23 66 66 44 90 66
5 | 90 44 53 75 26 27 70 62 49 48 38 73 89 34 50 90
6 | 87 54 50 14 38 23 81 113 66 64 25 47 117 47 72 80
7 | 95 42 114 19 37 26 102 56 72 69 26 45 67 65 38 78
8 | 128 46 43 12 22 49 134 69 62 50 27 73 77 126 48 65
9 | 90 38 40 28 63 67 41 57 34 58 169 124 82 59
10 | 70 33 19 73 64 45 40 40 50 73 106 60 65
11 | 51 72 23 24 20 46 40 36 17 27 57 38 120 59 35
12 | 31 53 13 7 12 22 28 34 24 25 16 40 57 28 33
13 | 48 18 9 8 7 14 33 17 18 8 24 44 11 52 27 37
14 | 20 20 20 6 12 22 26 11 13 20 24 15 24 32 21
15 | 30 3 10 12 22 20 47 19 25 27 36 28 25
16 | 7 17 20 9 15 21 17 16 37 21 16
17 | 32 10 14 9 11 18 15 19 14 12 16
18 | 15 16 8 10 6 9 12 18 14 26 13 11
19 | 17 7 15 21 8 7 11 14 14 15 20 17
20 | 15 6 7 10 8 13 8 13 43 41 22 24 15
21 | 11 14 28 4 10 19 9 8 23 10 22 19 22 21 21
22 | 14 16 5 13 4 13 10 9 15 13 8 21 14 26 21 29
23 | 6 14 32 6 3 24 16 11 21 9 17 27 15 35 28 22
---+----------------------------------------------------------------
| 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Notes:
. lots of interference during the second half of the month. At a given
moment, for hours Rumanian, Polish and Russian stations were heard.
Pierre De Groote
---------------------------------------------------------------------------
Observer: Ou Yang Tian Jing
Location: Wu Han, Hu Bei, P.R. of China (114 17' 30" E, 30 30' 07" N)
Frequency: 95.9 MHz
Transmitter location: FM of Korea
Antenna: 5-element Yagi, azimuth 315 deg (northeast), elevation 15 deg.
Receiver: receiver with digital tuner (DS R-3000)
Observing method: listening
Counts according duration: Counts according intensity:
Class I <=0.5 s O: Over intensity
Class II 0.6-2.9 s M: Middle intensity
Class III >=3 s U: Under intensity
Observation interval: 19h30m - 20h30m UT
| Class | Intensity | Total
| III II I | O M U | Counts Seconds
--------+---------------+---------------+----------------
Apr 30 | 1 0 0 | 0 1 0 | 1 3
May 1 | | |
2 | 0 2 10 | 6 4 2 | 12 4
3 | 0 3 10 | 3 6 4 | 13 5
4 | 2 3 13 | 3 6 9 | 18 13
5 | 2 6 26 | 11 10 13 | 34 35
6 | | |
7 | | |
8 | 0 3 17 | 7 5 8 | 20 7
9 | 1 5 21 | 7 10 10 | 27 17
10 | 1 7 6 | 5 5 4 | 14 12
11 | 0 2 16 | 2 10 6 | 18 7
12 | 2 1 0 | 0 3 0 | 3 10
13 | 0 0 8 | 1 4 3 | 8 3
14 | | |
15 | | |
16 | 0 1 7 | 1 3 4 | 8 3
--------+---------------+---------------+----------------
| III II I | O M U | Counts Seconds
| Class | Intensity | Total
Notes:
. local time = UT + 8 hours
. - = no observations made.
Jiang
---------------------------------------------------------------------------
Observer: Will Kelsey
Location: Santa Maria, CA. USA (120 26' 9" W, 34 55' 58" N)
Frequency: 107.9 MHz
Transmitter Location: Sacramento, CA. KXOA FM, 50 kW at 362 km.
Antenna: Yagi FM 6 element. Heading North
Receiver: Sangean 803 A
Observing Method: Audio Tape.
Underdense/Overdense Scale:
Overdense: 1.0 second or more duration
Underdense: less than 1.0 second duration
Each observed hour is 60 minutes, exactly.
______________________________________________
May Over- Under-
1999 hr-UT dense dense Total
----------------------------------------------
13 1120-1220 14 36 50
14 1120-1220 6 20 26
15 1115-1215 7 28 35
16 1100-1200 14 27 41
17 1100-1200 10 17 27
18 1055-1155 9 25 34
19 1050-1150 10 24 34
20 1045-1145 11 34 45
21 1040-1140 10 19 29
22 1040-1140 6 13 19
23 1035-1135 5 15 20
24 1030-1130 4 11 15
25 1025-1125 10 9 19
26 1225-1325 3 16 19
27 1015-1115 6 13 19
28 1015-1115 8 14 22
29 1010-1110 5 13 18
30 1005-1105 8 21 29
----------------------------------------------
1999 hr-UT Over- Under-
May dense dense Total
Note:
We are leaving California and relocating in Conway, Arkansas.
Therefore, it will not be possible for me to submit observations
until after we are established in our new home.
Will Kelsey
---------------------------------------------------------------------------
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
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.
| May 1999
UT| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
---+----------------------------------------------------------------
0| 3 4 2 5 4 5 0 2 4 3 6 3 4 5 5 8
1| 3 2 5 3 2 5 0 4 6 2 2 4 9 2 5 4
2| 2 6 6 6 3 2 10 5 2 6 5 5 2 3 4 1
3| 9 2 6 5 6 11 5 6 4 7 4 1 3 5 5 0
4| 7 8 8 6 11 10 11 12 13 7 13 5 5 2 3 4
5| 8 6 11 16 14 14 12 21 11 18 10 6 4 4 4 9
6| 4 9 12 15 17 12 14 27 13 10 13 16 3 11 4 9
7| 8 9 17 26 18 17 10 24 11 18 10 8 7 3 6 8
8| 7 4 14 18 11 23 21 11 10 11 6 11 0 5 3 5
9| 5 4 3 15 10 14 14 11 9 5 8 11 7 4 5 3
10| 6 2 6 14 5 5 10 9 11 10 6 6 3 3 4 2
11| 5 7 6 10 4 7 4 5 7 11 4 7 3 5 7 8
12| 7 3 9 1 4 6 3 10 2 11 7 7 7 4 4 2.
13| 5 5. 6 5 4 3 0 10 1 4 3 3 3 3 1
14| 3 1 3 0 1 3 3. 3 4 1 4 0 0 0 0.
15| 1 2 0 1 2 1 3 1 1 0 3 1 0 0
16| 1 0 2 0 0 1 2 1 2 1 0 1 1 1 1
17| 2 0 1 0 2 0 1 1 0 0 1 0 1 0 2
18| 1 0 1 1 0 1 0 1 1 0 0 0 0 0 1 0
19| 0 1 0 0 1 1 1 0 0. 0 0 0 0 0 0 0.
20| 0 1 4 1 0 0 0 1 3. 1 1 0 0 1 1 2.
21| 0 1 3 2 3 1 0 1 0 2 0 0 0 0 1
22| 1 2 3 4 6 0 1 3 0 3 0 5 2 0 4 2
23| 3 3 1 3 2 5 0 3 3 10 3 1 1 1 3 1
---+----------------------------------------------------------------
UT| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
| May 1999
| May 1999
UT| 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
---+-----------------------------------------------------------
0| 1 1 2 1 1 0 0 0. 2 7 6 5 4 1
1| 5. 3 2 3 6 5 2 1 9 3 3 1 2 2
2| 2 1 2 2 2 0 5 2 7 3 3 1 2 5
3| 3 2 4 3 2 5 3 5 2 4 7 5 4 3 2
4| 0. 2 2 7 6 5 6 1 1 2 8 4 4 4 4
5| 5 7 4 6 3 3 8 3 4 8 3 8 7 10 6
6| 4 5 6 4 6 3 4 2 3 2 2 4 3 3 6
7| 6 5 6 3 2 1 3 4 3 1 4 3. 3 3
8| 8 2 6 7 2 3 1 6 3 5 6. 3. 1
9| 2 2 5 4 2 0 1 6 4 2 4
10| 3. 0. 3 2 5 3 5 2 2 5 2 2. 5
11| 8. 5 3 2 0 6 4 6 8 3
12| 0. 3 5 2 2 1 2 3 1 2. 3 7. 2
13| 2 3 1 4 3 0 2 1 2 0. 0 0 0. 2
14| 1 2 0 1 0 1 2 1 1 0 3. 1 2 3
15| 1 0 1 0 1 0 1 1 1 0 2 2 1 2
16| 0 0 1 0. 1 1 0 1 0 0 0. 0
17| 0. 0. 1 1 0. 0 2 0 1 0 1 3 0.
18| 0. 1 0 0 0 0 1 0 1 0 0 3
19| 1 0 0. 0 0 0 0 0 0 3. 0 2
20| 6 0 0. 0 1 1 0 2. 0 1 0 0. 0 3
21| 0 1 2 0 0 2 0 1 1 3 1 2 5
22| 3 1 0 2 1 1 3 2 5 3 2 2 4 0
23| 2 1 1 4 1 1 5 4 1 2 1 1 1 2
---+-----------------------------------------------------------
UT| 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
| May 1999
Propagation overview for May 1999
E : sporadic-E or E-layer propagation
F : FAI (field aligned irregularity)
- : propagation only via meteor echos.
(blank) : no data available
| May 1999
UT| 1 2 3 4 5 6 7 8 910111213141516171819202122232425262728293031
---+--------------------------------------------------------------
0| - - - - - - - - - - - - - - - - - - - - - - - E E - - - - - -
1| - - - - - - - - - - - - - - - - E - - - - - - E - - - - - - -
2| - - - - - - - - - - - - - - - - E - - - - - - - - - - - - - -
3| - - - - - - - - - - - - - - - - E - - - - - - E - - - - - - -
4| - - - - - - - - - - - - - - - - E - - - - E - - - - - - - - -
5| - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
6| - - - - - - - - - - - - - - - - - - - - - E - - - - - E E - -
7| - - - - - - - - - - - - - - - - E - - - E - - - - - - E E E -
8| - - - - - - - - - - - - - - - - E - - E E - - - - - - E E E E
9| - - - - - - - - - - - - - - - - E - - - E - - - - - - E - E E
10| - - - - - - - - - - - - - - - - E E - - E - - E - - - E - E E
11| - - - - - - - - - - - - - - - - E E - - - - - E - E E E F E E
12| - - - - - - - - - - - - - - - F E - - - - - - E - E E E - E -
13| - - - - - - - - - - - - - - - F - - - - - - - E - - E - - E -
14| - - - - - - - - - - - - - - F - - - - - - - E - - E - - E -
15| - - - - - - - - - - - - - - - E - - - - F - - E - F - - - E -
16| - - - - - - - - - - - - - - - E - - F F E - - - - - - E E E -
17| - - - - - - - - - - - - - - - E E F F - F - - - - - - - E - -
18| F - - - - - - - - - - - - - - E E - - - - - - E - - E E E - -
19| - - - - - - F - - - - - - - - E - - F - - - - E - F E E - -
20| - - - - - - - - - - - - - - - E F - F - - - F E - - - - E - -
21| - - - - - - - - - - - - - - - E E - E - - - F E - - - - - - -
22| - - - - - - - - - - - - - - - - - - E - - - F E - - - - - - -
23| - - - - - - - - - - - - - - - - - - - - - - - E - - - - - - -
---+--------------------------------------------------------------
UT| 1 2 3 4 5 6 7 8 910111213141516171819202122232425262728293031
| May 1999
Notes:
. the Eta-Aquarids on May 6 did not show up very well
. the sporadic-E season started on May 16.
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
April 1999
Apr| 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 | 19 14 19 14 19 20 17 10 15 8 12 16 10 13 10 17 32 31 21 14 10 10 9 23
2 | 14 14 19 14 25 27 20 12 14 7 14 11 13 19 15 19 35 28 23 30 10 16 20 20
3 | 16 12 19 16 23 23 19 10 6 10 2 8 4 4 12 14 33 13 19 18 10 15 18 20
4 | 19 13 16 18 17 8 8 13 9 6 7 9 10 12 21 21 35 21 15 12 9 4 9 10
5 | 9 3 12 9 7 14 9 5 9 4 8 4 12 9 21 16 28 13 10 7 15 8 10 8
6 | 2 12 6 7 10 7 6 6 12 12 11 12 10 13 17 22 20 15 10 13 13 9 15 19
7 | 8 19 6 7 8 7 12 6 7 10 9 7 9 13 15 22 14 19 18 9 9 11 10 4
8 | 6 14 5 10 12 4 5 4 3 0 7 19 7 10 21 26 17 23 2 1 2 3 14 11
9 | 6 2 7 12 12 4 7 6 11 9 12 7 6 11 15 22 19 18 13 14 13 12 4 -
10 | - - - - - - - - - - - - - - - - - - 8 8 13 10 20 12
11 | 8 11 12 11 6 7 7 12 11 2 5 5 5 7 12 18 11 22 9 11 7 7 12 11
12 | 2 5 6 13 11 5 7 6 6 9 2 5 9 8 12 14 17 20 3 14 6 12 18 14
13 | 6 13 9 10 11 7 13 4 6 6 7 11 5 4 11 25 23 18 12 8 21 25 26 9
14 | 11 6 4 8 5 3 4 6 2 3 10 13 13 5 12 18 23 16 16 29 14 11 14 19
15 | 13 9 12 16 2 6 2 6 7 8 5 4 2 10 13 18 20 12 7 8 4 8 13 7
16 | 6 5 7 11 6 3 5 5 5 9 6 7 3 5 14 13 8 12 5 9 10 14 16 7
17 | 2 4 6 3 9 4 2 6 6 3 9 5 4 13 10 22 17 16 18 4 7 7 12 2
18 | 6 4 5 9 0 2 4 3 3 5 9 4 12 7 11 18 16 12 11 4 3 10 19 9
19 | 3 11 7 4 3 7 2 4 4 3 1 4 6 13 11 18 23 28 14 6 1 13 21 6
20 | 16 15 12 14 12 9 6 5 13 14 10 9 4 3 6 23 18 25 10 17 10 7 9 13
21 | 9 10 10 10 5 10 6 6 5 4 3 5 6 12 16 20 15 23 12 6 13 9 18 12
22 | 8 6 6 13 7 5 9 7 3 14 6 9 7 12 16 28 16 16 7 8 12 12 13 11
23 | 6 11 13 20 15 7 2 9 9 9 10 5 6 8 11 16 14 11 11 12 12 7 14 21
24 | 9 9 11 11 10 14 2 6 5 2 5 3 6 7 13 18 20 16 11 12 10 11 12 6
25 | 4 9 3 4 2 2 2 3 5 2 3 3 1 3 8 25 21 17 10 7 7 9 15 11
26 | 7 6 4 0 10 3 5 5 4 6 5 9 7 7 7 20 12 14 8 5 9 8 8 11
27 | 3 6 14 13 10 5 9 7 2 7 7 5 13 12 11 23 16 20 9 11 6 11 24 10
8 | 9 7 4 11 13 6 4 7 7 8 9 7 9 9 12 28 16 25 12 7 13 51 22 6
29 | 6 8 3 9 13 6 2 7 8 40 6 5 7 12 11 13 11 2 7 6 3 15 35 13
30 | 5 9 5 6 7 2 3 11 40 9 5 2 2 18 42 57 36 12 4 - - - 6 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
Apr| UT
Signal duration distribution for the above period
Duration (s) Number
< 0.1 2168
0.1 to 0.3 1850
0.3 to 1 1374
1 to 3 1182
3 to 10 824
10 to 30 128
> 30 3
Corrections to the March observations in RMOB9904:
. the setup is totally automatic, with no human intervention of any kind.
. no data are deleted. All data recorded to computer disk are reported as
a signal count.
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
May|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST
May|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
---+--------------------------------------------------------------------------
01|28 25 29 18 23 32 50 38@33@34@30@22@22 21 n n -- 6 9 4 14 17 29@24
02|24 32 30 29 27 46 59 63 25 30 28 23 28 30 9 11 6 7 10 11 12 22 39@30
03|26 30 26 38 37 38 49 45 47 35 30 28 27 23 14 12 14 6 1 6 20 16 21@31
04|22 21 26 32 31 34 57 46 62 30 37 35 33 52 29 13 7 9 3 14 13 17 19@32
05|27 17 25 30 32 51 57 45 37 38 31 24 27@24 19 12 n 8 13 6 14 20 31 --
06|27 40 31 20 40 51 58 49 39 35 15 15 9 17 11 7 4 3 5 7 7 18 32@26
07|29 27 29 27 35 55 57 55 50 32 18 n n 16 15 12 9 12@11 11 9 23 24@25
08|23 28 15 36 37 57 50 59 41 45 35 35 27 e 20 10 15 5 10 10 5 24 28@25
09|27 26 29 34 32 46 60 63 49 34 52@39 34 17 10 8 6 8 12 12 19 12 29 --
10|35 33 25 20 32 43 57 63 46 42@39 51 43 39 33 22 14 11 10 8 13 16 31@29
11|34 30 30 38 34 46 64 71 51 31 16 27 37 26 29 15 8 5 6 12 13 20 22@38
12|41 32 23 34 41 55 70 47 24 31 21 37 16 30 26 18 10 9 8 10 19 21 30@30
13|29 28 28 24 40 33 49 46 28 23 30 29 32 27 19 13 n 3 9 8 13 29 39@20
14|16 28 30 26 48 52 43 46 36 21 25 29 23 33 32 19 7 6 9 8 20 20 35@40
15|36 21 33 34 34 34 54 39 36 31 e 35 21 38 26@30 n n 7 n n 20 38@27
16|37 27 22 28 29 52 40 41 43 30 21 34 30 30 n n n e e e@12 25 23@34
17|29 24 27 35 27 43 50 36 35 25 16 e e e e e e e e 8 18 13 17@35
18|38 29 38 20 37 40 53 34 40 20 27 10 21 22 18 15@24 @9 9 14 13 18 26@25
19|38 24 19 32 23 34 39 43 e e e e e e 23 20@12 e e 11 16 18 34@25
20|29 29 21 40 43 43 51 64 35 22 e e e e 23 17 6 10 9 12 17 17 25@41
21|35 28 33 23 39 28 52 25 e e 14 15 19 32 26 22 18 11 3 e 13 21 16@31
22|21 33 23 25 30 37 49 34 26 f f f f f f f n 9 10 17 11 21 29 --
23|40 36 25 25 28 40 28 39 32@14 e e 21@30 n n e e e@24 18 17 25@30
24|27 30 28 23 36 48 37 41 33 29 27 28 36 34 21 24 19 8 7 11 10 22 28@19
25|35 28 34 24 31 39 50 59 34 28 25 16 12 14 21 17 11 8 11 6 14 27 30@37
26|31 32 38 39 33 45 45 47 39 15 13 17 22 e 19 15 12 17 12 10 14 24 24@33
27|27 26 34 39 31 52 37 e e e e f---------------------------------- f
28| f -------------------------------------------------------------------f
29| f -------------------------------------------- f e e e 24 26 29@32
30|26 31 36 27 39 46 46 48@39 e e n 36 36 24 27 19 7 8 17 20 28 31@29
31|43 33 36 28 44 50 55 53 37 22 18 17 23 26 28 19 10 11 12 16 12 25 30@25
--+--------------------------------------------------------------------------
May|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
May|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
May|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST
May|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
---+--------------------------------------------------------------------------
01| 2 2 1 2 5 6 7 3 1
02| 1 3 1 4 3 1 5 1 3 1 5 1 1 2 2 1 2
03| 1 1 2 1 1 5 3 6 9 4 3 1 2 3 1 1
04| 1 1 2 5 7 5 8 3 2 3 3 4 1 3
05| 2 2 2 2 3 5 12 9 4 10 3 4 1
06| 3 4 8 10 8 11 6 6 2 1 1 2 1
07| 2 2 5 9 8 7 9 6 3 1 2 1
08| 2 1 2 3 3 10 8 9 5 5 5 2 3 1 2
09| 1 2 2 5 1 5 9 8 4 7 7 1 4 1 3
10| 2 2 4 6 6 11 7 8 3 7 5 4 3 1 1 1 1
11| 2 2 3 5 6 4 6 8 6 1 1 2 2
12| 1 2 4 7 6 1 5 2 3 2 1 2 1 2
13| 2 1 1 3 3 5 3 1 3 2 3 2 1 2 1
14| 2 1 3 3 5 3 4 3 1 2 1 2 1 1 1 1
15| 1 2 2 1 4 3 5 4 1 2 1 1 5 2 1 2
16| 2 4 2 4 1 1 3 5 3 1 1 1
17| 1 3 1 1 5 3 3 1 3
18| 1 1 1 2 5 3 3 1 1 1 3 2
19| 1 3 2 6 3 1 1
20| 2 2 7 7 10 5 2 2 1 1 1 1 2
21| 1 1 1 1 1 2 6 2 1 2 2 3 3
22| 1 1 2 3 4 4 1 f f f f f f f 1 2
23| 2 4 2 6 2 2 2 1 3 1 2
24| 2 3 3 1 3 5 1 3 3 2 2 4 1 2 1 1 1 2 1 1
25| 2 1 2 5 3 3 2 1 3 1 1 1 2
26| 2 2 3 2 2 3 2 2 3 1 1
27| 3 1 3 2 f-----------------f
28| f ------------------------------------------------------------------f
29| f------------------------------------------------ 2 1 2
30| 2 2 2 3 2 2 4 6 1 1 3 1 2 1
31| 1 2 2 2 3 4 1 2 3 1 2 1 1 1
---+--------------------------------------------------------------------------
May|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
May|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
May 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
----------------------------------------------------------------
Count 1 3 3 11 10 14 8 10 8 4 1 2 3 0 1
May 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
--------------------------------------------------------------------
Count 5 2 0 0 0 3 2 2 1 1 0 (1) ? 1? 2 1
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 activity of Eta-Aquarids was observed from May 2 to 12,
and was like a plateau (no distinct peak).
. the receiving antenna was blown down by a gust of wind on May 27, 2h UT.
Sadao Okamoto
---------------------------------------------------------------------------
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.
| May 1999
UT LT | 4 5 6 7
-------+------------------
16 0 | 0 0 0 0
17 1 | 0 0 0 0
18 2 | 0 0 0 0
19 3 | 0 5 0 0
20 4 | 0 0 0 0
21 5 | 0 0 1 0
22 6 | 1 1 1 1
23 7 | 1 0 0 0
0 8 | 1 0 0 0
1 9 | 0 0 1 0
2 10 | 0 0 0 0
3 11 | 0 0 0 0
4 12 | 0 0 0 0
5 13 | 0 0 0 1
6 14 | 0 0 2 1
7 15 | 1 0 0 0
8 16 | 0 1 0 1
9 17 | 1 0 0 0
10 18 | 0 0 0 0
11 19 | 0 1 0 0
12 20 | 0 0 0 0
13 21 | 0 0 0 0
14 22 | 0 0 0 0
15 23 | 0 0 0 0
-------+------------------
UT LT | 4 5 6 7
| May 1999
Note:
. high count on May 4, 19h UT
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).
eta Aquarids 1999
Meteor counts in one hour intervals starting at:
UT | 3 May 4 May 5 May 6 May
----+----------------------------------
0 | 109 158 101 170
1 | 132 165 109 253
2 | 267 330 279 295
3 | 290 304 524 578
4 | 418 553 784 762
5 | 419 882 992 742
6 | 396 427 766 932
7 | 361 552 681 813
8 | 324 731 418 701
9 | 266 413 424 1012
10 | 229 261 281 388
11 | 263 264 299 353
12 | 182 202 200 361
13 | 210 242 261 292
14 | 156 128 154 210
15 | 362 136 173 184
16 | 125 72 144 160
17 | 89 58 161 95
18 | 91 43 131 87
19 | 52 62 96 126
20 | 106 127 120 122
21 | 108 104 191 193
22 | 127 113 203 148
23 | 121 99 125 144
----+----------------------------------
UT | 3 May 4 May 5 May 6 May
Note:
The scaling factors have been re-estimated per Dec. 1998 data from 29 days
and compared to monthly averages since 1993. This did indicate some need to
adjust the count and time parameter by some +15...20% to keep the curves
comparable to the older ones.
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: via Chris Steyaert
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
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
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 (RMOB9905) 6 June 1999
--
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