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(meteorobs) Radio Meteor Observation Bulletin, November 2000
Radio Meteor Observation Bulletin No. 88 December 2000
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: Biedenkopf C2 TV, Video Frequency 48.250 MHz,
ERP 100 kW, Azimuth 90 +/-65
Antenna: 3 element Yagi 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: own written software "MSD" with sound card.
| Nov 2000
UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
---+--------------------------------------------------------------------------
0h| 37 33 40 61 35 31 43 64 13 27 26 24 15 21 12
1 | 31 19 24 45 34 39 39 ? 15 16 ? 19 22 16 14
2 | 29 31 24 26 35 22 29 ? 34 10 ? 20 10 8 8
3 | 29 22 20 16 23 16 26 ? ? ? 27 12 7 6 11
4 | 18 30 33 57 47 24 42 ? 7 ? 4 9 13 8 11
5 | ? 42 45 35 31 38 38 ? 15 13 44 20 15 19 13
6 | 35 31 35 10 ? 57 27 47 19 36 5 28 22 13 6
7 | 56 ? 35 31 ? ? ? 12 28 5 4 14 17 19 20
8 | ? ? 53 ? ? ? ? ? 12 16 ? 26 48 53 3
9 | 30 11 ? ? ? ? ? 23 55 31 ? 36 28 17 17
10 | ? ? ? ? ? ? ? ? 20 18 ? ? ? 18 7
11 | 45 ? 29 ? 48 ? 56 ? 46 12 ? ? 28 13 14
12 | ? 20 ? ? 19 28 ? 30 ? 13 ? 14 7 37 29
13 | 73 ? ? 24 26 ? ? ? ? 10 6 23 21 ? ?
14 | ? ? ? 29 32 ? 30 ? ? 27 13 12 13 13 26
15 | ? ? ? 43 19 ? 23 ? ? 10 9 53 ? 48 5
16 | ? ? ? ? 27 ? 25 22 ? 10 6 ? ? 39 3
17 | ? ? ? ? 33 ? ? 20 ? 39 7 7 7 18 11
18 | 34 27 ? ? 26 ? 21 8 ? 12 9 8 6 13 7
19 | 31 20 29 28 32 29 15 9 14 7 5 12 6 13 13
20 | 30 22 30 26 28 42 22 10 13 16 10 13 14 13 15
21 | 30 26 50 24 24 32 21 12 4 8 11 7 13 18 23
22 | 44 32 33 43 35 22 8 13 12 10 6 8 8 10 9
23 | 44 35 39 39 30 35 10 11 16 10 18 12 14 9 15
---+--------------------------------------------------------------------------
UT| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
| Nov 2000
| Nov 2000
UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
---+--------------------------------------------------------------------------
0h| 13 14 35 15 10 17 16 11 11 10 19 23 14 9 11
1 | 12 17 53 4 7 17 14 13 13 19 12 16 19 15 17
2 | 17 12 40 8 9 11 8 14 12 15 13 11 13 12 19
3 | 7 10 47 4 9 6 6 9 6 4 16 4 9 8 10
4 | 6 9 55 43 8 3 10 12 10 22 7 13 23 7 7
5 | 9 24 102 14 9 10 16 14 12 15 21 17 25 14 17
6 | 25 31 153 9 22 14 14 24 17 24 13 29 13 18 13
7 | 9 43 171 13 8 10 7 13 5 16 15 70 44 ? 45
8 | 11 29 56 16 14 6 29 15 21 ? 15 ? 12 40 ?
9 | 9 35 29 14 11 17 24 25 ? ? 31 ? ? 16 ?
10 | 13 14 24 8 16 29 10 69? ? 45 9 ? 26 10 16
11 | 12 18 8 13 7 ? 19 49 ? 48 46 34 ? 17 13
12 | 25 17 24 9 22 17 9 30 23 18 19 51 42 12 31
13 | 8 20 14 12 8 55 26 18 13 10 21 25 12 18 36
14 | 14 7 7 5 6 7 18 19 9 9 22 19 21 6 27
15 | 10 8 11 17 5 6 18 5 7 7 14 12 11 20 ?
16 | 4 9 5 17 8 5 8 ? 9 6 12 13 13 10 21
17 | 6 4 5 5 6 21 9 16 7 12 11 7 ? 13 5
18 | 6 4 7 9 4 12 12 10 9 12 7 11 12 5 8
19 | 3 5 10 10 9 6 7 11 13 10 7 15 11 13 8
20 | 3 12 7 7 15 5 21 9 14 16 14 14 0 7 19
21 | 13 12 6 8 4 16 10 16 15 6 16 18 10 6 14
22 | 4 8 6 2 10 12 8 8 30 7 8 24 15 8 10
23 | 18 10 9 10 9 13 23 12 8 12 13 17 11 22 5
---+--------------------------------------------------------------------------
UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
| Nov 2000
Leonids 10 minute interval counts
16-Nov 17-Nov 18-Nov
04:00 0 0 1
04:10 1 1 2
04:20 0 1 9
04:30 3 1 4
04:40 1 0 3
04:50 1 6 36
05:00 0 1 42
05:10 1 3 3
05:20 2 10 17
05:30 2 3 12
05:40 1 0 16
05:50 3 7 12
06:00 3 5 17
06:10 8 2 22
06:20 5 2 14
06:30 4 9 26
06:40 5 4 48
06:50 0 9 26
07:00 3 15 25
07:10 1 5 47
07:20 3 6 35
07:30 2 6 31
07:40 0 2 17
07:50 0 9 16
08:00 2 9 10
08:10 3 7 7
08:20 3 1 11
08:30 1 2 4
08:40 1 6 5
08:50 1 4 19
Notes:
. ? probably affected by sporadic-E or FAI
. 10 min counts are available for other periods besides the ones listed here
Enric Fraile Algeciras
- ---------------------------------------------------------------------------
Observer: Jean-Louis Aillaud
Location: Sainte Clotilde, Riunion Island (55 29' E, 20 52' S)
Frequency: 87.7 MHz, remote transmitter on Madagascar - distance 850 km
89.7 MHz (empty frequency for coincidence)
Antenna : 3 elements Yagi FM horizontal polarisation
elevation 90 deg (zenith), astronomical azimuth: 114 deg (=West)
Receiver 1: FM tuner Technics ST G 450 L (on 87.7 MHz)
Receiver 2: FM tuner TEAC TR 400 (on 89.7 MHz)
observing method:
a) electronic interface on LINE output audio signal are fed in
COM2: of PC (1) 100 MHz and COM2: of PC (2) 200 MHz
b) METEOR V4.0 processes the signal and records on hard disk the
time of the events.
METEOR parameters: threshold 10 for 87.7 89.7 MHz
c) COLORGRAMME V.2 for examined DATA and generates RMOB bulletin
automatically.
COLORGRAMME parameters: sum freq 3000
| Nov 2000
UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
---+-----------------------------------------------------------
0h| 0 0 2 0 0 0 0 4 5 3 0 0 0 2 0
1 | 0 0 2 8 0 0 3 0 2 0 0 6 0 0 0
2 | 11 0 3 7 0 0 15 0 7 5 0 4 5 0 1
3 | 9 0 3 6 0 0 6 2 6 7 6 4 6 0 5
4 | 23 5 14 4 6 0 11 10 10 6 2 4 19 16 5
5 | 15 13 4 5 7 14 12 4 5 7 21 5 13 17 15
6 | 18 7 0 1 12 16 2 0 8 4 13 23 7 13 12
7 | 4 12 6 2 15 6 10 2 8 3 8 4 5 8 2
8 | 9 8 17 5 4 12 9 4 8 1 8 16 2 6 0
9 | 2 7 17 2 0 5 3 2 8 3 21 11 4 7 4
10 | 14 14 3 5 0 6 21 9 21 7 14 11 6 12 3
11 | 12 8 2 7 2 2 18 0 6 0 11 9 17 7 2
12 | 17 14 0 4 6 16 25 0 14 0 10 8 17 0 2
13 | 16 6 0 4 8 13 7 15 11 7 25 16 5 22 0
14 | 18 8 2 8 5 2 17 10 3 8 6 15 12 42 10
15 | 19 7 20 4 8 20 27 9 10 7 12 15 22 11 5
16 | 12 12 11 7 6 19 14 22 14 14 32 13 11 0 11
17 | 9 8 15 0 29 14 10 11 5 20 10 9 20 5 4
18 | 6 8 2 0 4 5 1 7 9 7 1 20 29 0 0
19 | 6 10 1 0 6 10 3 0 4 12 6 10 8 4 8
20 | 6 3 11 0 3 3 10 3 4 8 4 6 0 1 7
21 | 14 0 6 0 2 5 8 0 3 8 4 0 0 0 1
22 | 3 0 1 0 1 8 0 0 4 6 5 0 0 10 0
23 | 1 0 0 0 4 7 3 11 0 0 0 4 0 6 6
---+-----------------------------------------------------------
UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
| Nov 2000
| Nov 2000
UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
---+-----------------------------------------------------------
0 | 0 0 6 0 0 0 0 0 0 0 0 3 0 0 0
1 | 4 1 2 0 0 0 2 2 0 0 0 0 0 0 0
2 | 0 7 5 2 0 7 5 2 0 0 0 0 0 1 0
3 | 4 2 8 9 0 15 0 8 0 4 0 7 5 6 0
4 | 2 0 8 16 11 2 12 11 0 9 17 17 15 15 0
5 | 2 7 7 12 16 6 6 4 13 2 0 7 9 13 11
6 | 19 3 10 19 8 1 7 8 7 5 29 1 7 9 8
7 | 12 3 18 17 6 2 8 13 15 4 11 2 20 4 5
8 | 19 0 1 8 28 4 14 4 0 6 13 3 3 13 6
9 | 0 0 4 8 0 7 10 10 0 5 12 4 0 5 11
10 | 12 1 2 0 4 2 1 14 5 2 8 3 13 10 9
11 | 17 4 24 1 18 5 5 7 10 2 7 1 22 11 4
12 | 9 0 10 11 7 2 8 5 5 7 8 6 10 5 16
13 | 3 0 12 4 16 2 4 3 10 13 7 17 20 2 24
14 | 19 1 21 6 21 3 11 17 8 12 20 7 13 3 4
15 | 14 12 1 14 9 11 18 10 5 40 18 28 23 5 7
16 | 15 16 17 19 21 16 9 4 1 21 11 21 0 0 14
17 | 16 11 11 6 19 8 19 1 0 13 8 11 0 0 10
18 | 5 5 11 0 2 9 14 2 1 7 8 3 0 0 7
19 | 5 3 21 0 5 5 8 8 0 3 8 14 0 0 2
20 | 12 2 1 0 4 9 22 3 0 0 0 11 0 0 11
21 | 3 4 0 0 0 0 20 0 0 1 0 3 0 0 0
22 | 1 11 0 0 0 0 38 0 0 2 5 7 2 0 0
23 | 0 1 2 0 6 0 7 0 0 0 4 0 5 0 0
---+-----------------------------------------------------------
UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
| Nov 2000
Jean-Louis Aillaud
---------------------------------------------------------------------------
Observer: Michael Boschat
Location: Halifax, Canada (63 36'W, 44 39'N, 58 meters above sea level)
Listening Frequency: 83.24 MHz
Receiver: Icom R-10
Antenna : resonant dipole
Antenna Direction: Horizontally polarized with lobes in E-W plane, elev 0 deg
Filter : high-Q (Q at least 300) bandpass filter between antenna & receiver.
Listening Mode: CW
Recording method: listening by ear
November 2000
Number of meteors heard in one hour interval
2000| UT
Nov | 00h 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17
----+-----------------------------------------------------------------------
1 | - - - - - - - - - - - - 13 11 15 10 11 9
2 | - - - - - - - - - - - - 19 26 26 18 - -
3 | - - - - - - - - - - - - 11 4 - - - -
4 | - - - - - - - - - - - - - - - - - -
5 | - - - - - - - - - - - - 6 7 17 13 18 -
11 | - - - - - - - - - - - - 5 6 12 12 5 6
12 | - - - - - - - - - - - - 17 8 8 7 - -
13 | - - - - - - - - - - - - - 6 14 28 10 -
14 | - - - - - - - - - - - - - - - - - -
15 | - - - - - - - - - - - - - - - - - -
16 | - - - - - - - - - - - - 14 - 21 9 8 9
17 | - - 2 9 - - 19 103 230 108 33 20 - - - - - -
18 | 8 5 7 10 58 128 - 219 147 99 29 19 - - - - - -
19 | 6 5 13 5 - - - - - - - - 22 25 17 23 - -
25 | - - - - - - - - - - - - - 3 13 15 17 -
----+-----------------------------------------------------------------------
Nov | 00h 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17
2000| UT
Notes:
. A fairly good month especially the Leonids! I got one photo from my
balcony and have put it on my web site:
http://www.atm.daldot ca/~andromed/pics/Leonid2.jpg
. no corrections for radiant position made to the counts
. - = no observations made
. * = 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 Ghent University format (Prometeos), and are
available for further analysis. Reduction software for DOS and
Windows available].
November 2000
Raw counts of reflections with a duration of at least 0.027 s
during one hour interval starting at UT:
Nov | UT
2000 | 20h 21 22 23 00 01 02 03 04 05 06 07
------+-----------------------------------------------------------
1- 2 | 35 42 32 59 50 56 78 87 88 125 ?
2- 3 | 22 28 35 35 57 55 92 120 115 111 ?
3- 4 |
4- 5 |
5- 6 | 31 43 34 41 38 40 114 102 91 88 109
6- 7 | ? ? 23 12 19 50 94 87 95 112 ?
7- 8 | 37 47 28 28 35 45 61 84 101 107 45
8- 9 | 33 55 33 35 23 62 75 112 107 159 95
9-10 | 33 45 30 23 23 38 100 106 161 167 164
10-11 | 31 42 40 74 30 39 74 154 96 110 40
11-12 | 36 53 18 24 27 11 41 132 120 99 76
12-13 | 44 84 40 25 60 71 124 98 148 154 114
13-14 | 42 67 26 24 27 25 69 105 145 149 124
14-15 | 37 54 51 52 45 42 ? 107 170 187 127
15-16 | 50 28 18 31 45 80 101 124 164 125 129
16-17 | 38 67 38 53 28 55 120 161 416 452 343
17-18 | 56 81 54 107 189 229 447 882 858 1006 969
18-19 | 55 60 32 34 34 47 157 140 158 140 131
19-20 | 41 53 20 27 24 20 100 83 77 129 95
20-21 | 47 61 29 27 39 41 118 119 95 126 ?
21-22 | 52 41 15 43 17 43 75 109 126 126 108
22-23 | 46 48 47 27 26 24 93 187 132 89 89
23-24 | 49 55 8 23 24 26 75 94 116 127 184
24-25 | 44 71 27 23 30 33 107 122 132 88 81
25-26 | 38 74 22 16 24 17 39 109 107 92 63
26-27 | 66 78 40 23 27 23 92 136 100 137 109
27-28 |
28-29 | ? ? ? 55 19 ? ? ? 117 ? ?
29-30 | 51 38 17 24 10 15 79 98 87 110 96
30- 1 | 54 51 23 28 15 29 ? 116 99 98 97
------+-----------------------------------------------------------
2000 | 20h 21 22 23 00 01 02 03 04 05 06 07
Nov | UT
Raw counts of reflections with a duration of at least 1.000 s
during one hour interval starting at UT:
Nov | UT
2000 | 20h 21 22 23 00 01 02 03 04 05 06 07
------+------------------------------------------------------------
1- 2 | 4 4 7* 8 13* 6 13 9 11 21 ?
2- 3 | 2 2 7 6 4 10 8 11 19 8 ?
3- 4 |
4- 5 |
5- 6 | 2 11* 5 6 4 6 15 14 12 5 12
6- 7 | ? 15? 2 1 2 10 13 8 16 29 ?
7- 8 | 7 7 6* 9* 4 8 10 12 11 21 7
8- 9 | 5 6 3 9* 3 9 6 19 14 18 24*
9-10 | 3 10* 3 3 2 5 8 7 36* 39* 44*
10-11 | 3 8 4 14 1 5 7 23 7 20 9*
11-12 | 2 9 1 3 7* 1 4 15 8 17 9
12-13 | 5 17* 14* 6* 18* 13 13 10 29 44* 32*
13-14 | 4 11 5 5* 4 4 7 19 22 54* 38*
14-15 | 6 6 17* 9 10* 4 ? 8 40* 32* 28*
15-16 | 11* 3 1 5 6 22* 17 19 37* 42* 36*
16-17 | 3 12 3 15* 4 5 18 33* 112* 110* 56
17-18 | 11 17* 11* 33* 49* 48* 90* 232* 247* 286* 252*
18-19 | 8 7 8* 4 14* 4 10 18 30 16 29*
19-20 | 6 6 0 3 4 1 12 11 7 21 15
20-21 | 9 11 9 7* 4 5 18 20 11 18 ?
21-22 | 13* 9* 2 5 1 7 6 12 16 25 22*
22-23 | 8 7 7 9* 2 3 7 30 25 13 10
23-24 | 8 9 0 5* 2 3 7 3 16 27* 47*
24-25 | 6 20* 3 2 3 0 17 14 24 17 12
25-26 | 5 13 3 2 5* 2 5 14 15 13 10
26-27 | 15* 12 10* 2 3 2 10 8 17 41* 28*
27-28 |
28-29 | 14 23? ? ? 2 ? ? ? 35? ? ?
29-30 | 9 3 2 2 3* 1 14 9 16 34* 38*
30- 1 | 10 4 4 6* 3 1 32* 9 17 23* 25*
------+------------------------------------------------------------
2000 | 20h 21 22 23 00 01 02 03 04 05 06 07
Nov | UT
Notes:
. Nov 3-5: man made interference
. ? 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 + 1 hours
. changed trigger level to 20 AD counts starting Oct 2000 (previously
15 AD counts since the start of the observations in 1993).
As expected this setup is less sensitive to (low volume) interference.
Correction: trigger level was previously 15 AD counts, not 6 as mentioned
in RMOB0010 (the signal level is 6 to 7 in quiet periods).
Maurice De Meyere
- ----------------------------------------------------------------------
Location: Astronomical Observatory, Ghent University, 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.
-------------------------------------------------------------
| Nov 2000 | 10x % reflec. time | horiz: day | vert: time UT|
----------------------------------------------------------------
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
---+------------------------------------------------------------
0 | 15 16 28 11 10 18 10 9 11 15 14 12
1 | 33 39 14 20 11 33 47 44 10 28 14 19
2 | 35 32 14 27 20 37 31 16 12 27 21 27
3 | 48 48 39 35 14 27 31 26 31 20 14 87
4 | 38 39 36 38 31 31 21 72 21 37 35 32
5 | 35 39 31 22 28 25 49 24 29 25 30 46
6 | 41 18 23 50 58 72 29 49 32 28 27
7 | 39 46 27 32 22 47 23 32 23 52 51
8 | 41 38 43 17 29 16 36 22 28 35 45
9 | 30 20 36 31 12 30 15 47 16 14 22
10 | 47 18 12 14 36 20 17 31 25 6 33 24
11 | 35 19 16 14 20 18 17 26 23 21 22 21
12 | 19 50 37 24 20 23 15 9 13 14 49 17
13 | 18 13 9 4 32 9 12 11 18 9 50 12
14 | 14 6 9 10 6 5 7 13 11 14 17 25
15 | 7 15 14 25 11 9 5 5 10 10 9 10 14
16 | 12 12 12 17 3 10 11 8 8 6 10 29 9
17 | 12 1 8 18 11 6 14 13 9 4 11 6 15
18 | 25 10 7 10 19 8 24 16 11 9 9 17
19 | 18 15 20 10 21 23 20 33 18 9 19
20 | 28 37 19 25 24 31 8 14 17 23 27
21 | 25 28 29 27 37 25 18 17 25 34 26
22 | 28 1 25 23 26 26 20 27 14 27 19 21 19
23 | 10 17 14 14 10 21 9 16 6 16 12 14 9
---+------------------------------------------------------------
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
-------------------------------------------------------------
| Nov 2000 | 10x % reflec. time | horiz: day | vert: time UT|
----------------------------------------------------------------
| 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
---+------------------------------------------------------------
0 | 15 13 99 20 13 20 9 24 19 22 10 15 11 11 18
1 | 20 53 69 31 12 12 26 24 15 20 12 11 24 21
2 | 28 43 233 19 28 12 19 21 19 19 15 27 22 22
3 | 29 41 364 59 34 20 21 51 15 20 20 24 15 32
4 | 36 64 567 48 40 20 34 81 21 25 16 46 36 27
5 | 47 173 664 115 25 22 35 55 43 56 46 23 39 46 24
6 | 32 198 710 111 30 46 28 33 23 32 34 32 45 50 25
7 | 30 188 677 81 39 25 38 68 31 23 37 21 44 25 18
8 | 25 160 345 63 54 26 70 13 22 42 28 18 11 12
9 | 27 75 247 45 17 35 18 21 12 31 37 25 31 53 22
10 | 18 9 82 36 19 15 10 22 35 31 36 34 18 24 14
11 | 19 31 26 22 22 23 12 20 22 22 42 10 37 8 15
12 | 11 15 24 20 20 31 18 30 38 25 21 12 16 16
13 | 10 37 19 21 12 11 11 10 13 13 12 11 7 16
14 | 10 9 18 12 15 5 7 7 8 8 11 7 9 17 8
15 | 9 5 17 32 12 14 6 3 22 11 9 11 8 11 9
16 | 10 10 6 7 11 18 12 11 5 20 7 10 9 5 6
17 | 11 21 21 7 6 12 7 20 12 15 11 9 15 8 9
18 | 19 11 9 18 16 8 18 14 10 10 10 19 20 14 11
19 | 17 21 19 12 18 11 33 20 10 10 19 14 5 9 11
20 | 13 32 23 24 24 13 24 15 15 15 30 29 10 27 11
21 | 15 31 35 20 28 32 41 21 20 26 45 22 11 34 34
22 | 21 21 32 20 29 21 16 18 23 23 37 24 20 25 20
23 | 15 28 30 5 12 14 13 11 14 8 10 31 34 16 14
---+------------------------------------------------------------
| 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Note:
. a fairly normal Leonids activity, no trace of the alpha Monocerotids,
and otherwise a quiet month.
Pierre De Groote
- ---------------------------------------------------------------------------
Observer: H. W. Kelsey
Location: Conway, Arkansas USA (92 25' W, 35 02' N)
Frequency: 89.5 MHz
Transmitter: Tulsa OK & Salina/Manhattan KS
Receiver: Sangean 803A
Antenna: Yagi Heading: SNW
Observing Method: Recorded on Audio Tape
Underdense/Overdense Scale:
Overdense: 0.5 second or more duration
Underdense: less than 0.5 second duration
Each observed hour is 60 minutes, exactly
Nov Over- Under-
2000 Hr-UT dense dense Total
_______________________________________________
1 1200-1300 7 5 12
2 0930-1030 1 7 8
3 1000-1100 9 12 21
4 1000-1100 18 21 39
5 1000-1100 4 14 18
6 0830-0930 21 31 52
7 0830-0930 23 37 60
8 0830-0930 10 15 25
9 0930-1030 9 23 32
10 0930-1030 10 18 28
11 0930-1030 2 3 5 Severe Interference
12 0915-1015 15 29 44
13 0915-1015 16 27 43
14 0945-1045 16 16 32
15 0930-1030 15 27 42
16 0900-1000 21 21 42
17 0900-1000 41 60 101
1000-1100 41 51 92
1100-1200 24 40 64
18 0900-1000 38 58 96
1000-1100 26 30 56
19 0800-0900 22 23 45
20 0830-0930 15 30 45
21 0830-0930 10 26 36 Minor Interference
22 0830-0930 13 30 43
23 0830-0930 10 22 32
24 0800-0900 10 35 45
25 0800-0900 14 12 26
26 0900-1000 3 14 17
27 0900-1000 6 9 15
28 1000-1100 4 12 16
29 1000-1100 11 17 28
30 1000-1100 4 12 16
Will Kelsey
---------------------------------------------------------------------------
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
2000
Nov|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST
Nov|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
---+--------------------------------------------------------------------------
15| 39 42 33 43 e n n n 8 8 16 30 43 38 39
16|40 69 65 80 67 62 49 62@51 38 21 25 31 26 20@24 n 7 14 10 17 50 49 47
17|45 59 78 68 69 52 51 72 36 44 32 27 20 13 23 n n n 16 19 26 37 49 43
18|45 56 79 78 95 80 90 74 74 61 n n n@13 4 6 21 8 18 14 21 28 48 30
19|49 61 66 61 63 60 53 30@37 18 17 14 -- 14 17 18 14 15 5 9 23 46 31 37
20|32 57 57 58 58 44 43 53@38 30 28 32 10 22 12 e e 8 12 10 17 31 44 42
21|27 33 58 54 65 39 49 47@34 32@25 n n n e e@12@12 @9 14 20 42 33 36
22|31 38 70 67 67 54 60 e e 31 16 9 n n n n 13 12 18 10 24 45 49 50
23|34 59 60 65 71 57 60@33 e 34 34 26 @7 @6 @9 8 10 15 13 6 19 33 44 35
24|37 43 68 47 64 48 73@57@35 29 27 21 12 11 8 20 13 13 6 5 39 29 35 49
25|50 70 74 72 67 67 91 75@49 46
---+------------------------------------------------------------------------
Nov|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
Nov|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 JST
2000
Echoes with duration > 5 s
2000
Nov|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST
Nov|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
---+--------------------------------------------------------------------------
15| 1 2 1
16| 1 7 3 3 3 4 5 5 4 1 1
17| 1 7 5 6 4 3 7 6 7 3 1 1 1 1
18| 2 7 10 17 11 18 21 14 16 1 1
19| 1 3 6 2 6 5 2 1 2 3 3
20| 4 6 8 2 1 1 2 3 1 1
21| 1 1 1 2 3 5 5 6 2 1 1 2
22| 1 2 3 2 3 1 1 1 1 1 1
23| 2 1 5 2 4 1 1 1
24| 2 4 2 1 4 10 3 5 3 2 2 1 1 1
25| 1 7 4 6 5 4 10 5 3 1
---+------------------------------------------------------------------------
Nov|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
Nov|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST
2000
Daily rate of long echoes (T > 20 s)
2000
Nov 16 17 18 19 20 21 22 23 24 25
-------------------------------------------
Count 5 6 24 8 1 1 2 2 5 (4)
Notes:
. I could not catch the peak of Leonids activity due to interference.
-: 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 h
Sadao Okamoto
---------------------------------------------------------------------------
Observer: Ingo Reimann
Location: L|beck-Travem|nde, Germany
100 51' E, 530 57' N, 13 m above sea-level
Frequency: 88.40 MHz
Transmitter locations
(only stations of at least 10 kW, all transmitters in Germany):
Leipzig 88.40 MHz, 100 kW
M|nchen 88.40 MHz, 25 kW
Pfaffenberg 88.40 MHz, 25 kW
Bremen 88.30 MHz, 100 kW
Rvbel 88.50 Mhz, 10 kW
Antenna: Five-element-Yagi, horizontally polarized, 5m above ground,
direction: azimuth (from S) 340 deg, elevation 53 deg
Receiver: Technics ST-Z55 with SU-V505
Observing method: Listening to tape-recordings, durations estimated during
listening
November 2000
One-hour- Numbers of meteors
interval with durations
starting 0.1 s 0.2 s 0.6 s 1.5 s 2 s 5 s 10 s 20 s more total
at UT and to to to to to to to than
shorter 0.5 s 1.4 s 1.9 s 4 s 9 s 19 s 40 s 40 s
--------- ------- ----- ------ ------ ------ ------ ------ ------ ------ ----
Nov 18 1 25 10 2 0 0 0 0 0 0 37
2 30 12 3 2 0 0 0 0 0 47
3* 7 4 0 1 0 0 0 0 0 12*
7 37 11 5 1 1 0 1 2 1 59
8 23 10 1 0 1 1 0 1 0 37
9* 9 1 0 1 2 0 0 1 0 14*
Nov 19 1 5 1 0 1 0 0 0 0 0 7
2 7 3 0 0 1 0 0 0 0 11
3 4 3 1 0 0 0 0 0 0 8
7 7 2 1 0 1 0 0 1 0 12
8 4 1 0 1 0 0 0 0 0 6
Remarks: * only 35 min observations due to instrumental failure
During listening no shorter variations in the meteor-rates were evident.
Ingo Reimann
---------------------------------------------------------------------------
Observer: Ton Schoenmaker
Location: Roden, Netherlands (06 26' E, 53 08' N)
Frequency: 55.275 MHz
Transmitter: Spanish TV channel E3 (video); transmitters in La Muela (30 kW),
Gamoniteiro (50 kW) and Aitana (60 kW); all stations within
100 Hz of nominal frequency; distance ~ 1500 km
Antenna: 3-elements horizontal Cushcraft 50 MHz Yagi tuned to 55.3 MHz;
geographical azimuth 210 degrees (SW)
Receiver: Yupiteru MVT-9000 in USB mode; sensitivity 0.5 uV at 12 dB S/N
Observing: 800 Hz audio signal from ear-phone socket was rectified,
digitised
and fed into a PC via the parallel computer port. HP VEE was used
to process the digitised signal and to store 15-minutes counts of
reflections stronger than 0.22 uV (-120 dBm). Also for all
individual meteors date, time, duration (dead time) and maximum
signal are stored.
Uncorrected hourly counts for signals stronger than 0.22 uV starting at:
| November 2000
UT | 10 11 12 13 14 15 16 17 18 19 20 21
----+-----------------------------------------------------------
0h | - 168 309 309 290 316 354 381 534 388 363 329
1h | - 216 367 302 359 422 335 385 557 375 446 401
2h | - 269 499 400 424 458 425 436 407* 514 587 530
3h | - 393 547 482 472 527 497 461 424* 544 602 652
4h | - 307 584 473 458 488 436 528 400* 554 614 572
5h | - 245 477 451 418 454 398 536 218* 520 516 475
6h | - 205 402 367 410 375 382 501* 221* 462 402 451
7h | - 217 349 364 445 437 365 431* 285* 493 389 432
8h | - 289 389 419 395 348 440 542* 431* 543 495 505
9h | - 283 337 422 387 465 443 481 749 474 515 512
10h | - 297 404 401 401 521 525 474 708 483 431 445
11h | - 296 356 375 315 403 433 410 545 401 417 438
12h | - 243 301 321 308 378 315 433 459 315 382 392
13h | - - 261 328 269 328 314 - 309 377 336 368
14h | - 226 231 267 280 278 286 - - 347 304 287
15h | - 293 269 244 302 260 230 - - 328 254 484
16h | - 219 206 227 266 216 239 244 237 264 247 295
17h | - 173 211 207 210 192 237 226 207 278 211 252
18h | - 198 223 236 256 209 176 253 247 - 183 244
19h | - 265 188 270 340 247 255 257 253 - 237 297
20h | - 267 234 281 263 239 262 334 273 239 271 316
21h | 164 262 284 309 348 256 340 314 384 336 311 -
22h | 174 334 299 354 347 282 313 334 456 328 345 -
23h | 167 312 274 329 338 323 318 382 409 414 322 -
----+-----------------------------------------------------------
UT | 10 11 12 13 14 15 16 17 18 19 20 21
Uncorrected hourly dead time percentages starting at:
| November 2000
UT | 10 11 12 13 14 15 16 17 18 19 20 21
----+-----------------------------------------------------------
0h | - 1.9 4.5 3.1 3.4 9.2 4.2 4.0 10.7 6.2 6.3 4.4
1h | - 2.5 4.6 3.6 5.0 6.2 7.5 7.4 20.3 3.3 5.4 4.9
2h | - 3.5 8.6 5.3 5.8 6.0 7.7 11.0 54.7 8.6 7.5 9.5
3h | - 5.0 8.0 7.4 8.1 11.1 11.1 14.6 69.4 8.7 7.4 9.2
4h | - 3.9 11.9 6.5 6.2 7.8 13.4 14.5 64.6 10.6 9.3 8.2
5h | - 4.2 5.9 7.5 5.2 7.6 5.9 17.5 80.3 14.8 6.7 9.7
6h | - 3.2 4.6 6.3 6.4 6.0 6.3 23.6 69.6 13.3 13.6 5.7
7h | - 5.8 4.8 6.7 6.0 6.1 7.4 29.0 84.7 16.0 6.8 5.9
8h | - 3.8 3.4 5.7 10.4 9.7 7.2 36.6 66.7 10.6 8.0 11.8
9h | - 3.6 9.0 6.2 11.6 7.8 5.5 17.5 25.0 6.8 8.6 23.2
10h | - 5.1 7.6 7.9 6.8 7.5 11.7 9.0 19.7 7.6 7.6 6.8
11h | - 7.9 4.9 5.6 14.7 7.2 9.4 8.7 10.1 11.3 6.9 5.4
12h | - 5.4 4.4 5.5 5.9 6.1 4.5 10.9 9.3 5.5 5.2 6.5
13h | - - 3.3 4.5 6.3 4.5 3.8 - 4.5 6.0 4.0 4.4
14h | - 5.8 4.0 4.3 6.1 3.7 4.6 - - 6.4 6.8 4.4
15h | - 5.9 4.3 2.9 4.7 5.4 4.0 - - 5.0 3.2 8.1
16h | - 4.9 3.4 2.7 4.4 2.9 4.9 3.7 5.1 4.6 3.1 3.7
17h | - 2.4 3.4 3.8 3.8 2.9 3.4 3.2 3.5 3.5 3.5 3.5
18h | - 2.9 4.1 2.9 6.6 4.1 3.0 3.4 3.8 - 4.9 4.8
19h | - 5.1 3.2 3.9 6.2 4.1 4.8 5.7 5.1 - 4.5 4.7
20h | - 4.2 3.8 4.4 3.6 3.8 3.7 6.9 5.2 4.3 4.7 6.8
21h | 2.5 4.3 4.2 4.9 6.2 4.1 5.4 4.9 8.5 6.4 5.3 -
22h | 2.4 5.4 5.8 5.9 5.5 5.4 3.8 4.6 10.1 4.1 5.4 -
23h | 2.6 3.5 3.1 4.8 5.0 7.1 7.1 6.0 10.6 5.9 3.5 -
----+-----------------------------------------------------------
UT | 10 11 12 13 14 15 16 17 18 19 20 21
Notes:
. - no observations
. * counts affected by long duration echoes
. Due to many long duration echoes caused by fast and bright meteors, the
counts are not a good measure of the activity of the Leonids during the
peaks on 17 and 18 November. For those periods the dead-time percentages
given in the second table are a much better indicator instead.
Ton Schoenmaker
- ---------------------------------------------------------------------------
Observer: Dave Swan
Location: Christchurch UK (50.47 N 1.44 W)
Receiver: Pro 2006 (modified to give a carrier detected
output for Chessell 301 pen recorder).
Sensitivity NFM: 0.5 uV (S+N)/N = 20 dB Dev: 3 kHz
at 1 kHz BW 9 kHz. Calibrated: 1/05/00
Antenna: 4 element Yagi broadband design for 50-70 MHz Gain 9.2 dBi.
Azimuth 95deg elevation 8 deg. Two 3 stage constant K
filters fitted after the antenna, (High and Low pass)
to reduce out of band interference and
intermodulation products causing spurious meteor counts.
Frequency: 62.203 MHz
Transmitter: Flensburg TV
Computer: Olivetti 386 Notebook with Meteor v 4.0 software
| November 2000
UT | 3 4 5 6 7 8 9 10 11 12 13 14
---+----------------------------------------------------------
0h| 25 18 24 22 17 27 25 20 21 16 25
1 | 25 22 25 13 17 26 27 24 31 26 14
2 | 18 35 25 22 24 22 26 28 29 21 15
3 | 22 39 26 22 16 19 26 20 23 14 14
4 | 19 14 15 19 20 25 29 13 16 25 14
5 | 12 22 16 30 22 14 15 22 12 17 31
6 | 21 23 21 31 26 24 17 34 16 25 28
7 | 16 32 33 43 6 24 24 16 16 42 40
8 | 27 24 29 33 16 26 10 29 22 44 27
9 | 18 23 17 21 24 16 11 18 14 11 17
10 | 18 24 16 27 15 15 26 17 25 15 19
11 | 22 25 17 22 8 15 18 14 19 10 8
12 | 31 19 26 38 19 19 16 17 14 16 14
13 | 24 17 23 25 36 16 24 17 20 8 9
14 | 26 9 18 22 36 10 19 12 14 14 18
15 | 19 16 8 11 29 37 13 15 12 11 9 14
16 | 20 17 12 7 33 43 18 9 18 11 14 33
17 | 23 23 15 28 18 61 23 21 19 15 20 32
18 | 18 16 16 12 34 27 11 26 18 20 23 32
19 | 24 26 12 29 15 19 8 17 22 6 13 44
20 | 17 19 14 33 18 18 15 13 13 17 11 25
21 | 22 29 20 14 16 15 18 9 12 18 20 18
22 | 19 22 24 11 28 16 28 29 18 13 21 19
23 | 23 26 26 17 40 21 20 33 21 28 26 17
---+----------------------------------------------------------
UT | 3 4 5 6 7 8 9 10 11 12 13 14
| November 2000
| November 2000
UT | 15 16 17 18 19 20 21
---+---------------------------------
0h| 28 31 23 26 47 33 14
1 | 14 22 21 25 23 16 12
2 | 15 22 16 28 21 27 23
3 | 35 19 20 42 14 14 30
4 | 13 19 35 46 19 18 20
5 | 21 21 26 45 24 26 21
6 | 24 20 37 43 22 32 22
7 | 22 29 46 48 21 42 23
8 | 40 15 32 22 31 31 22
9 | 28 19 20 75 19 13 11
10 | 19 19 14 24 20 15 19
11 | 18 16 20 26 18 12 44
12 | 18 10 18 19 26 14 46
13 | 17 22 19 5 19 17 30
14 | 16 21 11 15 20 11 18
15 | 23 50 8 14 9 16 10
16 | 19 44 14 19 18 15 33
17 | 22 52 7 14 10 15 32
18 | 13 35 12 24 16 21 28
19 | 22 32 30 39 26 51 20
20 | 19 34 45 42 51 38
21 | 30 23 32 45 33 30
22 | 12 29 24 47 9 15
23 | 26 21 28 15 22 23
---+---------------------------------
UT | 15 16 17 18 19 20 21
| November 2000
Leonids
| November 2000
UT | 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
---+---------------------------------------------------------------
0 | 25 20 75 46 53 45 83 16 24 54 35 46 71 79 28
1 | 24 36 92 52 44 31 55 25 59 24 21 31 57 39 33
2 | 34 60 117 58 54 47 55 23 36 19 28 57 28 24 41
3 | 35 60 129 47 56 53 71 37 55 43 39 66 47 55 19
4 | 50 55 127 46 55 43 54 38 46 58 18 42 20 46 36
5 | 31 60 134 64 50 49 45 40 41 53 35 56 27 47 51
6 | 41 79 160 62 32 57 60 50 34 45 55 42 31 40 61
7 | 49 43 147 78 44 30 43 61 42 35 17 43 29 18 55
8 | 67 91 95 38 43 33 63 55 31 31 53 33 31 41 52
9 | 31 61 92 57 46 37 43 20 42 22 64 33 30 16 14
10 | 55 58 52 16 35 42 44 19 31 16 43 37 29 23 22
11 | 25 45 35 25 37 17 41 15 21 30 40 26 15 12 27
12 | 37 41 22 27 36 30 32 12 38 15 21 22 14 23 27
13 | 37 30 22 22 25 28 27 16 24 26 21 29 17 21 17
14 | 28 17 33 19 29 12 28 13 18 13 10 30 13 28 29
15 | 22 20 15 20 24 22 20 20 13 14 7 16 16 20 24
16 | 27 21 19 16 29 26 17 11 20 21 13 14 6 12 22
17 | 24 22 20 18 18 14 22 14 22 14 24 35 25 40 36
18 | 24 36 34 16 14 21 11 7 17 16 23 26 15 29 30
19 | 20 32 39 20 24 51 43 15 20 31 26 8 32 34 24 31
20 | 23 26 12 35 29 31 43 20 36 41 26 28 36 29 28 30
21 | 23 32 33 45 36 33 43 28 48 49 24 16 49 31 33 33
22 | 27 26 52 46 39 39 66 29 29 30 23 61 53 42 30 10
23 | 41 40 52 47 39 60 76 33 42 65 31 73 56 68 27 10
---+---------------------------------------------------------------
UT | 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
| November 2000
Note:
. the November 3-21 counts were on the backup system.
Back up system: Rx AOR 3000A, 4 element Yagi Az 56 deg El 8 deg,
Transmitter 62.203 MHz Flensburg. 486 computer and Meteorv4. .
. observations on 66.62 MHz had to be abandoned because of local RF
interference. A second frequency of 62.203 MHz (Flensburg TV Tx) was used
from 3 to 21 Nov. but was also abandoned because of interference.
Testing of the frequency 55.25 MHz enabled observations to start on the
15 Nov. prior to the Leonids. Measurements of the Leonids on the 17,18 & 19
followed closely the predictions of Robert McNaught and David Asher.
Antenna azimuth was favourable for the Leonid radiant at the predicted
times.
Dave Swan
---------------------------------------------------------------------------
Observer: Ervin Szlanicska
Location: Leg, Slovakia
Frequency: 91.75 MHz
Antenna: 3 elements Yagi +amplifier, direction: SW
Observing method: Meteor 4 program, Threshold: 10
Number of meteors in one hour intervals
17/18 November 2000
UT|Count| Graph
- --------+----------------------------------------------
23| 42 |******************************************
0| 41 |*****************************************
1| 29 |*****************************
2| 31 |*******************************
3| 24 |************************
4| 36 |************************************
5| 29 |*****************************
6| 31 |*******************************
7| 32 |********************************
8| 31 |*******************************
9| 30 |******************************
10| 23 |***********************
11| 19 |*******************
12| 18 |******************
13| 18 |******************
14| 31 |*******************************
Notes:
. I built a circuit for Piere Terrier's Meteor v.4 program and it was the
first real observation of a meteor shower.
Ervin Szlanicska, via Szabolcs Kiss and Tibor Csorgei
---------------------------------------------------------------------------
Observer: Pierre Terrier
Location: Canet, France (3 36'E, 43 41' N)
Frequencies: 96.8 MHz (changed since previous report)
Antenna: 6-element Yagi FM, horizontal polar.
azimuth 0 deg (N-S), elevation 90 deg. (zenith)
Pre-amplifier: home made, gain 15 dB, Nf < 2 dB
Receiver: Tuner FM Continental Edison digital synthesiser TU 9945
Observing method: Electronic interface on LINE output audio signal are fed in
COM1: of PC IBM 386 25 MHz.
METEOR v 4.0 version processes the signal and records on
hard disk the time of the events.
METEOR parameters: THRESHOLD = 16
COLORGRAMME v 1.5 generates RMOB bulletin automatically
| November 2000
UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
---+-------------------------------------------------------------------------
0h| 1 9 5 7 5 12 9 3 7 10 7 6 7 1 6
1 | 3 13 14 13 2 12 2 3 4 15 4 6 3 8 10
2 | 5 22 12 5 7 16 10 12 12 13 5 4 11 8 6
3 | 18 43 13 8 5 14 7 11 13 16 10 10 11 3 13
4 | 21 25 9 7 5 14 4 7 17 16 3 8 12 5 18
5 | 14 14 13 9 3 17 7 9 6 20 11 8 16 4 3
6 | 17 11 8 11 7 8 8 9 11 15 7 5 12 4 5
7 | 11 14 7 5 4 22 5 9 9 9 14 2 9 4 11
8 | 6 16 6 1 0 9 8 7 5 16 6 12 14 7 11
9 | 11 5 5 8 0 3 9 26 4 9 10 12 6 6 7
10 | 8 6 7 2 9 8 8 27 6 9 9 8 8 7 0
11 | 9 2 3 12 6 10 5 11 18 12 11 5 3 13 10
12 | 10 7 2 7 1 8 3 7 7 9 3 4 12 6 10
13 | 5 9 4 4 1 4 6 10 8 11 8 3 8 5 5
14 | 2 5 3 6 5 5 3 4 4 6 9 6 19 6 3
15 | 0 5 7 3 2 3 3 1 5 6 8 2 11 3 2
16 | 4 3 5 6 0 2 4 6 6 3 7 8 9 0 3
17 | 2 5 7 3 7 6 8 2 6 6 13 5 5 3 8
18 | 4 5 5 3 10 5 4 5 4 4 12 8 3 2 8
19 | 4 3 5 8 8 3 6 6 7 11 13 2 3 1 7
20 | 8 7 9 7 7 11 9 9 7 11 15 8 7 4 12
21 | 9 4 3 2 12 5 3 7 4 6 15 12 0 4 13
22 | 7 7 7 4 7 7 10 9 10 6 10 7 5 12 11
23 | 6 12 10 7 10 11 7 3 9 6 13 5 3 5 4
---+-------------------------------------------------------------------------
UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
| November 2000
| November 2000
UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
---+-------------------------------------------------------------------------
0h| 13 8 15 9 4 10 9 2 4 3 9 9 6 8 14
1 | 16 4 33 11 10 6 7 16 2 12 11 6 8 10 13
2 | 20 13 57 11 4 7 9 9 8 9 18 14 6 17 16
3 | 21 18 49 19 6 10 19 12 8 16 19 8 15 18 24
4 | 19 15 22 10 5 8 10 12 17 13 24 19 10 7 17
5 | 15 8 18 8 7 4 14 10 6 14 17 16 11 11 13
6 | 7 10 24 10 4 6 12 16 8 23 17 13 2 14 10
7 | 14 17 36 4 6 10 13 13 4 27 11 9 8 14 14
8 | 7 20 27 13 1 8 12 9 12 14 16 13 9 9 12
9 | 6 15 18 6 2 6 11 10 8 7 11 4 11 6 6
10 | 10 10 10 7 5 5 9 6 7 8 6 9 5 4 10
11 | 10 4 10 6 2 4 6 3 5 6 6 4 7 4 6
12 | 7 4 8 6 2 15 1 2 6 4 11 4 10 4 2
13 | 5 2 2 5 0 3 9 5 7 4 4 3 3 0 5
14 | 1 1 1 3 0 3 4 6 6 1 5 2 7 12 5
15 | 2 5 2 1 4 4 2 4 3 6 5 2 3 2 6
16 | 2 1 4 2 1 4 2 1 2 5 2 4 8 3 6
17 | 3 2 0 3 2 4 5 1 4 6 6 7 6 3 5
18 | 4 2 7 3 8 6 8 1 5 4 3 9 6 3 5
19 | 7 3 5 5 4 3 10 3 4 4 6 7 5 1 4
20 | 11 2 7 6 4 5 10 5 11 9 17 9 8 8 12
21 | 6 8 3 10 8 2 11 3 5 8 7 11 8 2 10
22 | 6 4 4 3 7 3 9 3 11 5 11 6 15 6 10
23 | 4 9 8 2 5 5 9 7 8 10 7 6 11 8 16
---+------------------------------------------------------------------------
UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
| November 2000
Note: data are not corrected for Sporadic E.
Pierre Terrier
---------------------------------------------------------------------------
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 50 MHz 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 1225 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 920 Hz voice signal (by FFTDSP) is
received by a low frequency filter (900 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.
November 2000
2000|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23LT
Nov|16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15UT
----+-------------------------------------------------------------------------
11 | 9 11 4 5 5 8
12 |13 15 14 17 16 18 16 25 19 13 11 - - - - - - - 10 9 12 9 8 9
13 | 9 10 10 17 13 11 11 15 23 17
17 | 10
18 |20 22 32 52 46 33 59 98 88 73 28 24 20 16 10 8 11 10 12 9 8 11 11 9
19 |10 12 10 12 18 20 26 12 35 24 25 23 17 10 14
25 | 11 12 10 11 7 11
26 |12 15 24 14 26 23 17 16 15 28 21 17 12 14 21
----+-------------------------------------------------------------------------
Nov|16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15UT
2000|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23LT
November strong and long lasting echoes list
LT strength duration
dBi s
Nov 11 23h05m > 30
12 00h48m > 20
03h17m > 60
06h57m > 30
08h14m > 20
13 04h29m > 20 > 60
Leonids meteor shower:
17 11h12m > 20
18 01h05m > 20
02h34m > 20 > 300
03h00m > 300
03h23m > 60
06h01m > 60
07h16m > 20
07h19m > 300
07h36m > 300
07h44m > 60
07h50m > 120
07h56m > 120
08h14m > 60
08h29m >20
09h10m > 60
09h28m > 120
09h35m > 60
09h40m > 240
11h18m > 30
26 08h56m > 60
Garfield Tsao
- ---------------------------------------------------------------------------
Observer: Bruce Young
Location: Deception Bay, Queensland, Australia (27 30' S, 153 10' E)
Frequencies: 103.1 MHz
Transmitter: 103.1 Townsville, Queensland (1,100 km)
Location 103.1 Rockhampton, Queensland (550 km)
Both stations are almost in a straight line from here.
Antenna: 3-element Yagi FM, horizontally polarised,
azimuth NW, elevation 0 deg.
Amplifier: TV masthead amplifier 15 dB gain
Receiver: Samsung domestic type FM radio, digital tunning
Observing: Electronic interface on LINE output audio signal is fed in
method COM2: of PC IBM 486 DX2 66 MHz.
METEOR v 4.0 version processes the signal and records on
floppy disk the time of the events.
METEOR parameters: THRESHOLD = 8
| | November 2000
UT | LT | 15 16 17 18
---+----+-----------------
14h| 0 | 33 33 34 31
15 | 1 | 23 34 42 32
16 | 2 | 31 32 33 39
17 | 3 | 43 29 41 48
18 | 4 | 50 49 41 56
19 | 5 | 46 41 44 54
20 | 6 | 46 63 60 75
21 | 7 | 43 46 75 92
22 | 8 | 31 53 51 83
23 | 9 | 53 30 34 104
0 | 10 | 20 29 30 60
1 | 11 | 10 16 18 62
2 | 12 | 16 27 28 76
3 | 13 | 21 28 31 38
4 | 14 | 18 29 31 32
5 | 15 | 21 14 20 26
6 | 16 | 18 18 12
7 | 17 | 24 15 14
8 | 18 | 26 7 13
9 | 19 | 6 14 28
10 | 20 | 16 20 14
11 | 21 | 26 22 17
12 | 22 | 30 27 35
13 | 23 | 20 32 38
---+----+-----------------
UT | LT | 15 16 17 18
| | November 2000
Bruce Young
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. ANNOUNCEMENT
LOOKING FOR HELP ON METEOR TRACKING
Date: 21-Nov-00 05:00 CET
From: "William E. Diggs" <wdiggs@mcdot net>
Subject: AMATEUR METEOR TRACKING
Dear Mr. Steyaert,
This is a copy of a message that was sent to Mr. Pocock at the ARRL's
"The World Above 50 MHZ" column.
As you can see from the e-mail, we are looking for information on meteor
tracking using radio techniques. If you have any information that may be of
assistance in this regard, please let us hear from you.
" I wonder if you may be able to assist us. We would like to set up a
network of amateur radio meteor tracking stations to plot the path of meteors
entering the atmosphere in real, or near real, time.
I have been given to understand that a small number of scientific researchers
have been doing this, and that computer programs have been developed to help
facilitated their efforts.
If you know of any hams actively involved with meteor tracking or, if you know
of any who may be able to assist us in setting up such a program, or for that
matter, would be interested in becoming involved with an amateur effort,
please let me hear from you."
Thank you,
William E. Diggs -WB9NLI-
4. CONTRIBUTORS / USEFUL ADDRESSES
Enric Fraile Algeciras (EA3BTZ)
C/ Moianes 19-21 Esc. A 6: 1*, E Barcelona
mailto:Ea3btz@retemail.es
http://personal3.iddeo.es/ea3btz (in Spanish)
Jean-Louis Aillaud
Sainte Clotilde, Riunion Island
E-mail: jean-louis.aillaud@wanadoo.fr
Michael Boschat
6306 Cork St., Apt.512, Halifax, Nova Scotia, Canada
mailto:andromed@atm.daldot ca
Maurice De Meyere (ON4NU)
Hullekensstraat 24, B-9831 Deurle, Belgium
tel: +32 (9) 282 35 26
mailto:mauricedot de.meyere@econophonedot be
Ghent University, Astronomical Observatory
Krijgslaan 281(S9), B-9000 Gent, Belgium
mailto:Pierredot deGroote@rug.acdot be
Rafael Haag
Porto Alegre, Brazil
mailto:haag@portoweb.com.br
H. W. Kelsey, A.L.P.O.
Conway, Arkansas, USA
mailto:wkelsey@conwaycorpdot net
Alastair McBeath
IMO: International Meteor Organization
12A Prior's Walk, Morpeth, Northumberland, NE61 2RF, England, U.K.
mailto:vice_president@imodot net
Sadao Okamoto
mailto:s-okamo@js.sugiyama-u.ac.jp
Ingo Reimann
L|beck-Travem|nde, Germany
mailto:ingo-reimann@01019freenetdot de
Ton Schoenmaker, Dutch Meteor Society
Meester Homanstraat 8, NL-9301 HP Roden, Netherlands
mailto:schoenmaker@NFRAdot nl
Call: PA0EFA
Chris Steyaert, VVS
Kruisven 66, B-2400 Mol, Belgium
tel: +32 (14) 31 51 04
mailto:steyaert@vvsdot be
Dave Swan
Christchurch, UK
mailto:daveswan@dorsetpubs.com
Ervin Szlanicska
Leg, Slovakia
mailto:szervin@miesto.sk
Pierre Terrier
Canet (close to Montpellier), France
mailto:pierre.terrier@wanadoo.fr
http://members.tripod.com/~astro_electronic/index.html
Meteor & Colorgramme web site: http://page.to/meteor/
Visual RMOB web site : http://page.to/rmob/
Garfield Tsao (BM2EQB)
LonTan Observatory, LonTan, TauYan, Taiwan
mailto:tsao5916@ms4.accmail.com.tw
http://www.geocities.com/Eureka/Office/1528 (in Chinese)
Jeroen Van Wassenhove, VVS
Kouterstraat 25, B-9750 Zingem, Belgium
tel: +32 (9) 384 04 12
mailto:100101.734@compuserve.com
Bruce Young
Brisbane, Australia
mailto:B.Young@uqdot net.au
Ilkka Yrjvld
Jukolantie 16, FIN-45740 Kuusankoski, Finland
mailto:oh5iy@sci.fi
http://www.sci.fi/~oh5iy/
Call: OH5IY, packet radio: OH5IY@OH5RBG.#KVL.FIN.EU
--
Christian Steyaert (RMOB0011) 7 December 2000
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