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(meteorobs) Radio Meteor Obs. Bull. December 2000 Geminids / Ursids
Radio Meteor Observation Bulletin No. 89 January 2001
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.
| Dec 2000
UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
---+------------------------------------------------------------
0h| 14 16 4 9 20 12 12 12 16 12
1 | 5 6 12 15 24 11 28 16 41 15
2 | 11 11 17 23 26 45 111 166 140 29
3 | 9 9 13 44 14 22 67 115 72 9
4 | 4 6 18 56 12 18 35 34 28 1
5 | 20 9 15 23 16 42 73 73 57 17
6 | 12 9 16 10 9 42 48 67 58 18
7 | 8 11 13 ? 27 14 68 67 83 69
8 | 25 10 18 ? 13 21 33 121 ? ?
9 | 10 5 13 24 11 25 20 49 15 61
10 | 16 9 25 28 14 64 17 19 ? ?
11 | 16 19 19 17 23 21 10 44 14 ?
12 | 19 5 29 12 15 17 18 13 15
13 | 10 12 14 37 14 13 15 12 8 33
14 | 7 8 15 22 4 36 9 14 11 ?
15 | 7 6 6 8 7 6 9 7 11 27
16 | 9 10 7 9 5 4 12 8 6 79
17 | 3 2 4 4 9 7 6 15 11 7
18 | 5 3 10 10 7 6 18 22 25 11 35
19 | 4 14 13 11 5 16 32 55 36 12 10
20 | 3 5 7 7 13 16 38 66 60 17 8
21 | 7 2 7 5 11 26 23 57 74 15 9
22 | 7 11 7 12 6 16 11 19 50 13 7
23 | 7 9 2 10 9 8 13 12 26 13 7
---+------------------------------------------------------------
UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
| Dec 2000
| Dec 2000
UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
---+---------------------------------------------------------------
0h| 7 11 4 35 7 5 2 40 146 5 12 9 4 3 0
1 | 11 6 11 17 7 3 9 3 63 9 5 9 5 4 3
2 | 11 5 4 30 6 8 9 9 30 6 9 8 2 6 5
3 | 4 9 7 53 4 4 4 4 43 5 2 5 3 2 1
4 | 4 54 10 85 3 31 5 9 4 4 6 2 5 4 3
5 | 11 36 6 42 11 35 5 13 13 7 5 8 4 0 4
6 | 21 22 13 36 13 9 6 20 25 16 21 2 3 8 4
7 | 29 ? 7 6 5 44 21 64 4 7 6 5 2 6 4
8 | 18 15 25 6 7 113 17 ? 26 7 8 8 9 13 4
9 | 13 ? 12 ? 7 13 16 ? 6 10 14 8 7 15 7
10 | 24 ? 11 ? 4 8 14 ? 17 16 10 11 15 20 10
11 | 14 ? 11 6 11 25 22 ? 12 32 13 12 5 9 5 30
12 | 8 ? 18 10 13 24 17 19 11 51 17 6 2 21 7 31
13 | 49 33 9 19 24 75 54 1 6 9 14 7 7 10 3 5
14 | 19 30 11 19 33 37 14 7 6 9 16 5 6 10 3 7
15 | 23 ? 4 5 5 3 6 5 2 3 3 4 4 5 8 7
16 | 9 6 2 2 6 2 14 2 4 11 2 6 5 8 3 1
17 | 2 5 4 2 4 3 2 4 7 8 2 3 7 5 1 2
18 | 12 5 5 4 2 7 6 5 1 2 4 1 2 1 9 3
19 | 5 7 4 3 8 5 4 7 8 1 18 3 4 3 4 5
20 | 16 2 10 5 2 5 24 2 5 4 11 0 1 2 5 2
21 | 63 8 20 5 5 3 35 6 5 1 19 8 2 5 2 2
22 | 13 6 7 9 13 13 7 24 6 5 38 1 2 2 2 1
23 | 60 5 6 7 2 6 7 ? 3 3 ? 5 4 1 3 4
---+---------------------------------------------------------------
UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
| Dec 2000
Notes:
. ? probably affected by sporadic-E or FAI
Enric Fraile Algeciras
---------------------------------------------------------------------------
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
December 2000
Number of meteors heard in one hour interval
2000| UT
Dec | 01h 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18
----+-----------------------------------------------------------------------
09 | - - - - - - - - - - - - - 12 9 - -
-
10 | - - - - - - - - - - - 12 10 27 16 13 - -
11 | - - 24 - - - - - - 26 31 17 29 32 15 - -
-
12 | - 16 28 - - - - - - 14 37 - 27 - - 8 -
-
13 | 8 15 33 - - - - - - 28 41 79 82 50 26 - - -
14 | - - - - - - - - - - 12 6 13 6 - - - -
20 | - - - - - - - - - 3T - - 20 6 10 12 9 -
21 | - - - - - - - - - 5 - - 14 12 6 8 - -
22 | 2 7 14 - - - - - - - 7 22 23 66 41 23 12 8
23 | - - - - - - - - 12 9 8 7 13 28 29 8 - -
30 | - - - - - - - - - - - - 3 18 - - - -
31 | - - - - - - - - - - - - 8 14 11 11 8
-
----+-----------------------------------------------------------------------
Dec | 01h 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18
2000| UT
Notes:
. 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:
Dec | UT
2000 | 20h 21 22 23 00 01 02 03 04 05 06 07
------+-----------------------------------------------------------
1- 2 | 47 55 14 14 27 16 78 149 107 89 89
2- 3 |
3- 4 | 43 ? 26 29 19 9 67 ? ? ? 109
4- 5 | 61 46 50 24 33 38 107 ? ? ? 121
5- 6 | 34 80 26 17 15 25 76 125 104 140 120
6- 7 | 69 59 42 47 21 42 85 100 ? 101 107
7- 8 | 46 50 12 16 14 29 99 109 93 100 88
8- 9 | 44 48 40 34 21 37 86 125 104 91 88
9-10 | ? ? 27 ? 23 14 51 ? 114 ? ?
10-11 | 54 78 32 34 28 45 88 ? 93 123 98
11-12 | 57 43 18 6 14 34 76 113 129 160 105
12-13 | 45 68 29 12 28 45 122 112 126 221 270
13-14 | 72 58 34 16 ? 40 109 120 149 288 188
14-15 | 39 48 37 17 36 6 36 33 45 19 76
15-16 | 38 46 28 26 10 32 49 89 80 79 ?
16-17 | 58 51 58 26 12 13 22 78 80 55 51
17-18 | 47 68 13 12 11 22 67 87 96 15? 35
18-19 | 23 45 24 13 12 25 53 95 55 83 71
19-20 |
20-21 | 41 54 31 47 25 23 59 51 67 120 107
21-22 | 104? 163? 96 87 22 56 114 200 257 237 186
22-23 | 164? 232? 160? 75 29 30 28 86 ? ? ?
23-24 | 29 30 12 29 19 21 29 98 112 63 91
24-25 |
25-26 | 56 ? 20 22 11 11 52 57 58 101 56
26-27 | 26 35 38 16 8 20 60 88 78 86 ?
27-28 | 31 55 14 26 31 26 41 78 62 67 107
28-29 |
29-30 | 29 32 11 12 11 16 68 55 67 67 45
30-31 | 25 21 12 14 25 48 32 68 80 57 76
31- 1 | 31 64 75 48 30 4? 9? 75 51 47 40
------+-----------------------------------------------------------
2000 | 20h 21 22 23 00 01 02 03 04 05 06 07
Dec | UT
Raw counts of reflections with a duration of at least 1.000 s
during one hour interval starting at UT:
Dec | UT
2000 | 20h 21 22 23 00 01 02 03 04 05 06 07
------+------------------------------------------------------------
1- 2 | 8 10 0 0 6* 1 10 23? 11 11 15
2- 3 |
3- 4 | 3 32* 6* 7* 2 2* 3 ? ? ? 25*
4- 5 | 7 11* 3 5* 9* 3 12 23 20 ? ?
5- 6 | 2 14 2 4* 1 4 7 23 23* ? 15
6- 7 | 15* 9 4 9 3 12* 11 9 ? ? 23*
7- 8 | 9 4 0 2 1 7* 11 9 11 16 19*
8- 9 | 10* 6* 10* 6 5* 6 7 21 16 10 17
9-10 | 9 8 6* 10 3 4* 6 15 13 9 22
10-11 | 8 9 4 16* 3 8 6 23 12 23 19
11-12 | 5 6 7* 0 3 3 10 15 13 23 27*
12-13 | 9 8 3 4* 5 6 10 24* 17 59* 86*
13-14 | 17* 7 5 1 0 2 19 21 26 70* 40*
14-15 | 7 13* 5 0 11* 1 5 3 5 4* 28*
15-16 | 6 3 2 2 4* 4 3 13 11 9 ?
16-17 | 16* 6 11 1 1 0 1 6 6 4 2
17-18 | 7 10 1 1 2 1 8 6 9 19 8*
18-19 | 6* 4 3 1 0 0 10 17 7 14 34?
19-20 |
20-21 | 9* 13* 12* 22* 6* 2 3 8 9 43* 24*
21-22 | 46? 68? 25* 26* 0 1 11 42* 72* 66* 60*
22-23 | 55* 72* 79* 37* 3 7* 1 16 ? ? ?
23-24 | 1 5 3* 4 3 0 2 18 14 2 25*
24-25 |
25-26 | 4 9 3 1 1 0 5 4 5 27? 14*
26-27 | 2 5 10* 3 1 4 8 21* 9 9 ?
27-28 | 3 7 1 5 8* 2 7 11 5 2 11
28-29 |
29-30 | 2 6 0 1 2 1 3 4 4 8 6
30-31 | 10* 3 1 1 4 8 7* 7 14 8 9
31-01 | 4 12 15 7 6 3* 2* 11 4 4 4
------+------------------------------------------------------------
2000 | 20h 21 22 23 00 01 02 03 04 05 06 07
Dec | UT
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 + 1 hours
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.
-------------------------------------------------------------
| Dec 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 | 20 23 39 17 10 16 10 5 25 28 34 60 73 162 18
1 | 21 10 11 15 18 18 35 11 27 21 36 69 87 182 31
2 | 24 21 18 22 24 10 10 19 21 35 59 70 78 152 24
3 | 40 20 12 10 24 19 19 32 33 31 55 62 39 117 45
4 | 42 29 22 49 30 35 13 34 36 29 77 72 40 100 34
5 | 39 21 14 22 30 46 24 11 38 55 42 81 58 124 45
6 | 22 25 19 9 16 32 6 17 35 24 68 104 54 144 38
7 | 36 25 18 17 30 24 19 20 32 60 41 92 51 110 67
8 | 24 45 24 20 11 7 16 24 45 42 53 83 39
9 | 17 30 58 6 10 56 15 29 42 39 60 73 32
10 | 35 37 23 26 6 15 35 21 28 42 18 36 38 23
11 | 12 32 24 26 16 12 14 17 21 20 16 17 13 14 39
12 | 16 16 29 43 13 14 15 13 29 7 18 13 8
13 | 22 15 15 16 9 9 8 10 13 12 9 11 22 11
14 | 18 15 9 19 11 15 11 9 9 28 23 11 13 6
15 | 6 5 9 11 24 12 3 12 34 18 35 9 14 5 6
16 | 6 7 12 10 13 8 8 12 10 20 21 30 47 30 7
17 | 7 5 7 16 8 6 12 11 33 19 31 42 56 19 5
18 | 5 12 28 9 3 8 8 9 20 35 55 38 75 28 9
19 | 12 11 15 6 5 3 6 18 14 28 29 46 57 32 11
20 | 7 12 9 11 9 7 12 24 16 39 44 43 97 17 11
21 | 21 25 27 25 32 15 13 26 35 37 40 56 145 28 30
22 | 28 20 25 18 14 10 8 13 26 25 35 37 81 19 17
23 | 6 10 8 18 6 10 6 22 15 22 52 44 89 20 7
---+------------------------------------------------------------
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
-----------------------------------------------------------------
| Dec 2000 | 10x % reflec. time | horiz: day | vert: time in UT |
--------------------------------------------------------------------
| 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
---+----------------------------------------------------------------
0 | 18 12 10 6 11 5 5 17 15 0
1 | 26 21 21 12 10 17 17 11 17
2 | 21 32 25 27 20 9 35 16 24
3 | 29 21 13 9 27 30 24 33 22
4 | 38 28 55 37 24 29 72 47 31
5 | 42 33 32 24 23 38 43 51 73
6 | 29 33 40 21 35 26 52 40 19
7 | 25 54 21 19 21 31 44 27 24
8 | 56 34 18 34 20 17 28 38
9 | 52 24 22 12 23 81 42 31
10 | 15 31 25 24 35 21 30 27 31
11 | 20 28 24 29 36 15 15 31 42
12 | 15 19 21 57 19 18 22 28
13 | 17 10 7 15 6 19 19 9 10 7
14 | 19 12 5 10 6 13 8 30 10 11
15 | 12 11 6 8 4 11 7 5 5 10
16 | 7 6 4 6 3 9 11 5 3 7
17 | 11 12 8 5 9 6 10 7 6 6
18 | 12 4 7 12 7 10 16 5 6 6
19 | 10 10 7 10 4 6 4 8 32 12
20 | 13 31 15 24 12 10 13 8 14 25
21 | 17 19 11 14 9 12 18 26 24 13
22 | 27 14 13 19 8 35 7 17 17 32
23 | 20 5 7 9 13 8 6 7 7 17
---+----------------------------------------------------------------
| 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Notes:
. the - unattended - computer crashed during the Christmas holidays,
fortunately after the Ursids...
Pierre De Groote
---------------------------------------------------------------------------
Observer: Rafael Haag
Location: Porto Alegre (51 15' deg W, 30 10' deg S), Brazil
Frequency: 61.25 MHz, video carrier, C3
Transmitter: Several across Brazil, aprox. distance 500 - 1200 km.
Antenna: 2 elements cubical quad (height 7 m, heading North)
Receiver: Home Made converter feeding a ICV68 VHF FM receiver and
HF SSB receiver
Observing Method:
1) Squelch detection using FM receiver, counts number and
time of reflections.
2) Optional, individual doppler FFT processed into DSP PC
by HF SSB receiver.
Counts of reflections longer than 0.5 seconds
Geminids
December 2000
LT UT | 11 12 13 14 15
-------+----------------------------------
00h 02h| 279 264 258 221 241
01 03 | 309 314 321 258 235
02 04 | 312 338 305 236 379
03 05 | 376 397 376 304 357
04 06 | 404 421 419 357 405
05 07 | 397 432 458 386 383
06 08 | 448 494 509 402 401
07 09 | 453 469 524 431 424
08 10 | 423 471 502 433 431
09 11 | 402 466 496 397 405
10 12 | 398 405 476 407 399
11 13 | 375 397 408 358 364
12 14 | 352 402 369 342 376
13 15 | 309 364 375 336 306
14 16 | 327 328 389 302 318
15 17 | 302 315 377 306 300
16 18 | 275 279 352 286 296
17 19 | 234 304 242 264
18 20 | 203 268 277 228 218
19 21 | 210 236 213 197 202
20 22 | 182 203 189 188
21 23 | 179 211 232 205 164
22 00 | TP 209 212 217 TP
23 01 | 221 231 214 209 TP
-------+----------------------------------
LT UT | 11 12 13 14 15
December 2000
December 2000
LT UT | 21 22 23 24 25
-------+----------------------------------
00 02 | 243 TP 246 223 206
01 03 | 300 334 352 275 275
02 04 | 298 319 302 269 306
03 05 | 321 334 341 309 312
04 06 | 395 371 386 354 379
05 07 | 399 402 409 377 389
06 08 | 406 424 411 403 409
07 09 | 421 439 436 421 402
08 10 | 417 431 433 404 422
09 11 | 409 426 406 401 406
10 12 | 391 401 412 398 385
11 13 | 388 391 401 364 374
12 14 | 365 388 376 379 372
13 15 | 343 372 373 354 337
14 16 | 320 355 332 342 346
15 17 | 319 323 330 307 304
16 18 | 242 296 285 299 E
17 19 | 232 302 247 247 254
18 20 | 201 293 232 218 219
19 21 | 215 244 222 201 E
20 22 | 221 207 186 194
21 23 | 173 224 203 196 204
22 00 | 192 242 189 211 TP
23 01 | 209 279 201 216 TP
-------+----------------------------------
LT UT | 21 22 23 24 25
December 2000
Notes:
. E = Sporadic-E
. TP = Transequatorial propagation
. UT = LT + 2 hours (daylight saving)
Rafael Haag
---------------------------------------------------------------------------
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
Dec Over- Under-
2000 Hr-UT dense dense Total
_______________________________________________
1 1000-1100 4 6 10
2 1000-1200 12 16 28
3 1100-1200 12 18 30
4 1100-1200 6 8 14
5 1100-1200 13 21 34
6 1030-1130 12 18 30
7 0900-1000 11 34 45
8 0900-1000 11 26 37
9 0900-1000 6 11 17 Minor Interference
10 0700-0800 15 35 50
11 0700-0800 18 28 46
12 0700-0800 38 31 69
13 1045-1145 29 25 54
14 0700-0800 80 46 126
15 0700-0800 11 17 28
16 1000-1100 4 6 10
17 1130-1230 4 4 8 Major Interference
18 1130-1230 8 14 22
19 1130-1230 9 13 22
20 0700-0800 6 12 18
21 0800-0900 5 7 12
22 0700-0800 18 24 42
23 0700-0800 2 11 13
24 0700-0800 5 11 16
25 1100-1200 6 15 21
26 0830-0930 1 3 4 No Meteor Activity
27 0800-0900 10 18 28
28 1100-1200 1 6 7 Major Interference
29 1100-1200 18 13 31
30 1130-1230 18 22 40
31 1130-1230 21 32 53
Will Kelsey
---------------------------------------------------------------------------
Observer: Hiroshi Ogawa
Location: Misato Observatory (Wakayama-pref. Japan) 135.40 E, 34.13 N
Frequency: 53.750 MHz.
Transmitter Location: HAM beacon (JA9YDB) for RMO (50 W CW, 53.7500 MHz)
by JA9BOH Kimio Maegawa. No modulation except for identification
Antenna: original dipole (height: 1 m, to level, element: west-east)
Receiver: AOR AR8000 USB-Mode
Observing method: HROFFT software (by Okawa), manual count
Total number of echoes
Dec|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 LT
Dec|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 |17 22 23 22 31 34 40 33 19 21 26 16 17@18 IF IF IF IF 9 8 10 11 17 12
2 |19 17 22 20 20 23 25 26 24 20@15@18@10 IF IF IF IF IF@12 13 13@12 14 16
3 |15 21 17 22 27 29 30 24 22 21 19 20 18 7 IF IF IF IF IF@10@20 18 14 15
4 |15 19 21 27 28 30 27 19@16@14 IF@16 14 16 15@IF IF IF@12 11 15 12 14 13
5 |10 13 15 19 16 20 33 22 29 25 17 13 13 15 7 11 6 6 IF IF 14 15 18 19
6 |11 12 22 21 24 25 24 28 21 23 15 14 7@12 11 12 @6 IF@16@14@12@15 12 18
7 |12@12 -- -- 28@23@39@22@24 24 20 23 16 15@12@10@15 IF IF IF IF IF@12 11
8 |17 13 18 17 34 35 32 31 27 19 21 12 16 11 10 13 15 9@10 IF@12 11 19 21
9 |20 25 17 13 23 29 31 25 20 29 20 15 16 12 10 11@10 IF IF IF IF IF@18 23
10 |24 14 23 23 39 43 36 22 26 16 23 15 18 17 10 14 7 8@14 IF @9@14 26 25
11 |19 26 19 50 45 51 62 39 27 10 14 14 11 10 11 16 IF IF 13 24 19 28 28 21
12 |27@24 12 16 51 56 56 42 21 18@18 IF@16 12 10 11 10 9 8 38 41 43 -- --
13 |-- -- -- --@134-- -- -- 69 38 41 31 23 20 21 17 11 12 21 31 54 73 91130
14 |94 21 24127159109 97 62 54 28 22 25 16 14 19 16 13 11 24 26 37 43 62 60
15 |53 29 42 75 65 60 39 37 33 24 24 22 20@24 IF IF@12 14 13 9 19 26 30 28
16 |26 20 29 39 41 43 26 49 28 22 23 19 14 19 23 10 11 11 7 9 12 14 24 24
17 |27 21 35 29 27 28 33 31 21 22 20 14 13 15 -- -- --@12 9 12 10 13 19 21
18 |22 15 33 31 35 30 28 28 27 23 17 15 14 9 12 13 10 7 9 14 15 18 26 18
19 |22 25 26 29 30 36 35 38 28 27 37 22 13 17 11 11 10 12 13 13 16 19 15 12
20 |17 21 22 21 22 23 29 30 35 22 13 13 12 13 14 10 10 13 15 11 16 17 18 20
21 |16 21 28 28 19 26 21 32 24 19 19 20 17 15 11 10 9 10 8 13 10 14 15 14
22 |11 15 18 21 22 24 29 31 21 25 27 23 20 22 21 27 27 18 10 12 12 14 14 18
23 |17 12 17 17 21 27 32 27 20 22 20 16 9 10 10 10 7 5 7 11 @8 13 11 11
24 |17 15 14 17 18 20 22 24 17 16 18 18 11 10 9 11 10 9 9 10 9 14 12 15
25 |15 15 16 19 16 16 21 19 14 16@16 20 13@14 10 6 6 6 6 8 6 8 10 11
26 |11 15 21 23 23 33 23 23 19 18 17 19 13 15 11 13 8 6 8 10 9 10 13 14
27 |13 16 23 26 26 28 25 29 26 26 21 15 15 14 13 10 8 9 10 8 13 23 7 18
28 |17 17 25 29 21 27 26 31 26 30 24 25 16 14 16 10 10 7 9 11 16 12 12 12
29 |13 12 19 23 28 26 26 25 27 23 21 20 14 15 12 10 6 8 9 12 15 12 12 14
30 |15 21 29 28 22 23 28 29 23 17 18 17 19 15 14 17 7 9 7 8 11 11 14 12
31 |17 10 19 21 19 22 22 27 21 17 18 16 14 17 @8 7 5 IF IF 11 10@14@16 14
---+--------------------------------------------------------------------------
Dec|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
Dec|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 LT
Echoes longer than 20 seconds
Dec|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 LT
Dec|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 | 1 1 1 1 1 1
2 | 1 1 1 1 1
3 | 1 1 1
4 | 2 1 1 2
5 | 1 1 1 1 1 1 1 1
6 | 2 1 1 2 1 1 1
7 | 1 1 1 2
8 | 1 2 2 1 1 1
9 | 2 1 1 1
10 | 1 1 1 1 1 2 1 2
11 | 2 3 3 1 1
12 | 1 1 1 2 1 2
13 | 1 2 2 1 2 1 4 5
14 | 3 1 2 2 4 3 2 2 1 1 1 1
15 | 1 1 1 1 1 2 2 3 2 1 1 1
16 | 1 1 1 1 2 1
17 | 1 1 1 2
18 | 1 2 1 1
19 | 1 1 1 1 1 1 1 1 2
20 | 1 1 3
21 | 1 1 1 1
22 | 1 1 1 3 1 1 2 1 1
23 | 1
24 | 1
25 | 1 1 2
26 | 1
27 | 1
28 | 1 1
29 |
30 |
31 |
---+--------------------------------------------------------------------------
Dec|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
Dec|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 LT
Notes:
--: lost counts because of high noise level or machine failure.
@: Hourly rate estimated by effective observation time less than 60 min.
If: Contamination due to radio noise or interference
Es: Contamination due to sporadic E opening
LT = JST = UT + 9 h
Hiroshi Ogawa
---------------------------------------------------------------------------
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
Dec|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST
Dec|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 |37 49 53 67 62 71 73@56 e 42 35 22 12@25 n n n 9 15 10 14 33 42 40
2 |62 71 62 63 77106 88 73@63 37 32 n n n n n n n e e@35 41 58 39
3 |52 62 76 64 73 70 58 51@47 32@23@21 31@29 n n n @9 14 @4 19 40 51 49
4 |40 63 65 57 65 61@52 e e n n n n n n n n n 6 18 26 29 53 50
5 |51 58 71 70 90 72 77 64@26 16 13 12 n @4 11 7 7 7@10 e@23 50 28 24
6 |19 37 45 63 66 58 62 51@36 16 6 n 8 @4 n e e 10 6 9 15 34 51 52
7 |45 24 35 48 58 55 62 33@29 n n@15 9 21 7 13 @6 n n n 27 33 48 54
8 |60 58 82 89 67 67 74 66@39 18 24@14 @4 n 7 1 @9 9 12 @9 28 57 54 61
9 |64 68 73 69 52 84 88 n n 13 n n n n n n 18 n 7 @5 n 31 62 61
10 |63 37 61 90 75 77 81 51@45 44 22 25 28 22 24 9 13 9 @7 15 31 43 61 75
11 |70 50 76105 95 66 60 59@36 n n 16 13 8 13 8 n 8 10 10 22 34 51 71
12 |39 37 69113 97 36 n 59@28@15 n n 15 14 13 10 2 12 23 28 61 72 96138
13 128 56137217166144133100@58 13 27 17 28 16 12 13 5 13 15 35 60 86121154
14 149 65131196158 94 98 90@60 41 17 18 22 11 19 15 17 10 22 25 35 41 39 68
15 |50 30 45 67 41 36 30 64@40 n n n n n n n @8 9 8 10 14 21 16 10
16 |15 27 33 42 46 40 60 46@38 19 19 14 11 14 8 24 10 5 6 6 4 9 7 11
17 |13 16 12 16 17 22 29 38 28 22 33 31 39 13 21 12 6 9 7 5 10 15 14 15
18 |14 17 14 36 21 25 29 72@41 39 28 15 21 e e 11 17 10 8 9 8 15 17 13
19 |13 11 11 21 22 25 36 59@42 34 28 15 19 18 6 5 4 4 4 7 8 16 21 15
20 |13 12 27 28 40 43 35 58@36 32 27 24 26 30 12 9 1 7 15 3 11 8 14 12
21 |12 33 23 21 30 24 27 60@36 22@17 n n 9 3 3 5 7 17 11 11 30 39 23
22 |39 60 62 31 23 19 31@49@50 29 18 14 14 20 31 26 28 24 23 16 10 34 21 30
23 |34 40 56 64 66 67 50 40@51@32 21 18 n n n 10 4 9 19 10 19 23 27 26
24 |26 41 43 48 48 67 55 40@54 40 20 n@18 12 6 10 14 11 10 13 18 21 35 41
25 |41 48 56 51 43 41 53 64@48 36@32 21 23 25 13 26 n n 4 12 16 35 17 34
26 |35 22 45 40 46 47 51 51@60 28 25 35 33 28 15 24 4 8 10 10 16 24 29 17
27 |23 33 47 39 39 54 70 51@37 24@12 n @7 14 13 5 9 7 6 12 20 25 32 34
28 |50 43 61 69 58 71 65 64@51 27 26 28 19 10 9 e @9 6 6 8 27 29 34 22
29 |41 42 48 53 70 48 55 67@50 n@25 n n n n n @7 5 7 8 16 20 26 39
30 |26 38 49 63 64 64 64 60 -- 29 26 35 21 18 e e e 14 9 13 19 27 33 40
31 |37 44 59 48 41 67 60 54@51 38 42 37 26@28 e@13 10@13 n 6 6 18 26 20
---+--------------------------------------------------------------------------
Dec|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
Dec|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
Echoes with duration > 5 s
2000
Dec|00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23JST
Dec|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 | 1 4 4 6 5 5 4 3 4 1 2
2 | 3 5 5 9 3 12 16 7 6 3 1 1 3
3 | 7 1 6 3 1 7 4 2 4 1 1 1 3
4 | 1 1 3 3 1 3 1 1 1
5 | 2 3 11 6 3 1 6 4 1 1 1 1 1
6 | 2 1 3 9 4 6 2 3 1 1 3 2 1 3
7 | 4 3 1 3 4 2 8 6 3 2 1 1 2 1 1 2 2
8 | 7 2 3 1 6 8 7 6 4 4 2 2 1 1 2 4 3
9 | 1 7 7 6 6 3 6 1 1 2 2 9
10 | 3 4 7 6 4 6 6 4 @7 1 2 2 1 2 1 4 6 8
11 | 5 2 6 3 2 6 4 7 4 1 2 1 2 6 7
12 | 4 3 18 13 9 9 1 2 1 1 1 4 4 14 32
13 |30 5 44 48 41 27 22 17@10 1 6 1 3 1 1 4 13 14 31 53
14 |46 13 47 57 43 21 21 22 1 2 1 1 1 2 5 1 4 4
15 |11 4 8 3 1 1 6 4 1 1
16 | 2 2 2 2 2 3 8 7 4 1 1 1 2
17 | 2 1 3 1 5 1 1 1 1 1
18 | 1 1 1 1 6 4 4 3 3 2 3 1 1 1
19 | 2 1 1 1 1 1 2 5 1 4 2 1 1 1
20 | 1 1 1 3 1 6 5 1 2 1 4 4
21 | 1 2 2 3 2 1 3 5 1 2 1 1 1 1 1
22 | 3 1 5 2 4 4 @6@12 6 1 1 2 1 4 3 3 2 3 2
23 | 2 5 2 6 8 8 4 4 5 @4 1 3 2
24 | 4 2 4 8 2 7 6 5 1
25 | 2 2 4 5 7 6 5 4 6 2 2 1 2 1 1
26 | 1 5 4 3 6 6 6 11 1 2 4 4 1 1
27 | 1 1 1 3 4 2 1 4 1 1 1
28 | 7 3 4 2 6 7 11 8 3 6 3 2 1 2 1
29 | 1 6 5 1 5 9 8 12 @7 1 1 2 2
30 | 1 2 4 5 3 7 5 -- 1 2 4 1 2 1 1 1
31 | 2 1 3 6 6 1 4 6 3 1 1 6 3 1 1 2
---+--------------------------------------------------------------------------
Dec|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
Dec|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
Dec 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
----------------------------------------------------------------
Count 5 6 1 4 1 1 4 9 2 8 1 1 9 4 2
Dec 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
--------------------------------------------------------------------
Count 3 3 2 2 3 3 1 2 4 4 6 0 1 0 0 2
Notes:
. we succeeded in observing the Ursids outburst 5hUT-8hUT on Dec 22.
-: 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: 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:
| Geminids December 2000
UT | 08 09 10 11 12 13 14 15 16 17
----+----------------------------------------------------------
0h | - 375 425 451 684 828 624 369 216 241
1h | - 439 412 340 454 580 444 327 318 298
2h | - 506 482 459 425 547 548 487 447 356
3h | - 596 575 657 621 818 850 430 525 473
4h | - 656 925 733 754 996 787 480 423 485
5h | - 633 712 743 921 1048 765 469 456 487
6h | - 475 529 683 878 893 658 304 382 370
7h | - 527 509 554 779 782 589 300 393 370
8h | - 536 463 520 643 717 482 334 444 347
9h | - 431 377 478 533 698 416 290 363 402
10h | - 511 342 408 342 489 381 241 389 373
11h | - 404 320 336 256 450 253 196 341 395
12h | - 384 305 213 218 369 290 283 307 351
13h | - 332 269 293 198 307 304 264 202 342
14h | - 293 248 227 169 228 245 197 200 261
15h | - 232 242 222 145 230 191 129 177 188
16h | - 186 168 217 167 244 186 160 130 199
17h | - 206 166 213 168 275 180 117 118 170
18h | - 255 238 309 - 366 183 129 151 161
19h | - 307 290 434 - 467 213 151 177 -
20h | - 353 391 491 558 598 256 127 176 -
21h | 324 369 494 709 666 487 296 148 208 -
22h | 396 428 572 704 844 675 290 196 203 -
23h | 390 419 558 724 908 749 340 205 187 -
----+----------------------------------------------------------
UT | 08 09 10 11 12 13 14 15 16 17
| Ursids December 2000
UT | 18 19 20 21 22
----+----------------------------
0h | - 303 313 259 310
1h | - 360 395 384 434
2h | - 428 432 521 496
3h | - 515 511 495 472
4h | - 523 498 - 473
5h | - 390 443 - 414
6h | - 378 399 415 428
7h | - 383 386 409 417
8h | - 389 410 354 448
9h | - 392 381 337 467
10h | - 440 382 330 360
11h | - 389 393 299 325
12h | - 391 329 288 348
13h | - 366 311 296 265
14h | - 275 347 295 218
15h | - 235 214 270 216
16h | - 202 220 197 160
17h | - 142 173 149 162
18h | - 162 154 178 -
19h | - 167 137 149 -
20h | 179 179 165 172 -
21h | 193 206 215 216 -
22h | 235 193 272 216 -
23h | 221 267 265 249 -
----+----------------------------
UT | 18 19 20 21 22
Notes:
. - no observations
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).
Detected signal level > -123 dBm
Antenna: 5 element Yagi Gain 7.5 dBd.
Azimuth 170 deg elevation 10 deg.
Frequency: 55.25 MHz
Transmitter: Spanish TV channel E3 (video); transmitters in La Muela (35 kW),
Gamoniteiro (50 kW) and Aitana (60 kW); distance ~ 1000 km
Computer: AST 486 Notebook with Meteor v 4.0 software
| December 2000
UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
---+-----------------------------------------------------------
0h| 7 28 24 17 26 50 36 39 84 36 62 108 150 167 21
1 | 22 48 26 29 49 42 58 55 54 62 85 38 158 162 38
2 | 30 57 21 49 45 63 67 49 47 58 86 39 156 137 40
3 | 27 57 17 42 54 55 50 45 61 40 57 88 124 140 26
4 | 38 68 20 45 62 51 32 48 63 34 45 116 143 140 30
5 | 23 59 28 29 64 56 55 40 54 59 74 143 138 107 28
6 | 45 62 9 37 70 73 60 52 47 42 77 158 142 126 32
7 | 36 55 48 34 52 57 48 46 52 44 70 109 115 97 61
8 | 53 41 44 41 53 56 51 55 50 51 76 113 105 87 54
9 | 37 20 67 50 52 52 30 44 33 39 43 74 112 86 63
10 | 20 37 37 36 23 41 45 36 47 19 41 51 71 59 67
11 | 57 34 32 34 22 26 32 38 22 28 28 46 64 41 59
12 | 37 39 11 20 37 26 22 26 8 21 33 25 37 39 28
13 | 30 39 16 22 33 31 22 12 26 16 16 32 34 31 18
14 | 7 29 29 33 27 19 22 7 7 11 26 20 15 32 22
15 | 17 29 17 28 29 30 16 15 6 21 11 18 19 16 33
16 | 12 18 22 17 10 22 3 14 10 16 25 28 40 19 27
17 | 28 33 10 22 11 17 19 21 9 34 31 35 66 41 23
18 | 29 31 27 26 31 28 33 26 32 28 43 69 83 47 29
19 | 10 27 35 37 33 38 34 46 47 52 54 104 81 32 17
20 | 22 24 7 32 58 29 31 45 48 55 80 120 98 42 21
21 | 33 43 25 65 27 49 33 44 46 72 67 111 106 60 22
22 | 52 33 31 64 53 63 38 97 59 85 94 162 151 42 21
23 | 53 17 37 42 51 55 34 96 69 102 105 153 136 49 38
---+-----------------------------------------------------------
UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
| December 2000
| December 2000
UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
---+---------------------------------------------------------------
0h| 46 43 59 38 28 20 36 53 39 56 43 41 34 32 32 23
1 | 36 20 46 31 23 23 26 35 45 34 45 44 37 30 44 32
2 | 61 51 42 53 19 33 47 49 30 47 24 56 50 47 50 39
3 | 49 53 63 62 31 18 49 36 48 38 43 55 46 58 35 24
4 | 57 56 57 43 39 25 69 53 36 49 46 53 49 34 50 13
5 | 65 60 66 59 47 24 71 64 41 59 43 43 55 35 62 20
6 | 48 61 69 70 35 29 103 54 55 65 38 61 47 53 55 44
7 | 63 76 75 57 55 49 80 57 56 55 56 61 59 58 69 67
8 | 27 61 48 115 66 46 86 57 56 30 51 56 54 40 58 63
9 | 33 28 50 75 41 17 64 47 48 40 50 62 43 38 50 66
10 | 26 45 42 32 30 27 44 28 31 50 43 38 32 ? 32 46
11 | 30 46 35 29 28 32 53 52 65 41 40 41 33 20 40 27
12 | 43 43 39 40 21 20 38 33 22 33 50 45 41 43 48 32
13 | 22 31 32 38 29 22 48 32 31 29 25 35 32 27 36 36
14 | 29 26 38 12 20 16 34 7 33 20 31 16 19 13 25 17
15 | 30 17 10 31 13 19 26 29 13 12 14 12 10 13 19 2
16 | 14 23 34 30 17 9 19 23 50 20 24 21 20 12 16 20
17 | 24 16 28 23 30 27 20 41 70 23 12 26 32 8 22 24
18 | 9 18 34 24 30 24 33 29 22 33 16 36 23 10 32 26
19 | 24 46 29 34 42 30 40 32 33 35 26 27 27 35 31 50
20 | 39 33 23 44 38 48 47 44 34 33 35 23 25 54 47 30
21 | 43 42 24 22 48 49 41 47 30 41 14 45 38 41 36 25
22 | 45 36 40 40 35 37 51 44 36 28 15 62 44 44 39 36
23 | 37 52 39 30 42 46 69 61 46 38 31 40 46 49 26 48
---+---------------------------------------------------------------
UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
| December 2000
Notes:
. observations on a new frequency
. Geminids and Ursids showers gave counts as predicted.
. loss of data was due to mains power supply failures on
the 29 Dec at 10 & 11hrs. UT.
Dave Swan
---------------------------------------------------------------------------
Observer: Ervin Szlanicska
Location: Lehnice, Slovakia (48 03' E, 17 27' N)
Frequency: 91.75 MHz
Antenna : DELTA Plus type TV+FM antenna with amplifier, azimuth SW
Receiver: AIWA NSX-S30
Observing method: Electronic interface on LINE output audio signal are fed in
COM port of a PC. METEOR v 4.0 version processes the signal
and records on hard disk the time of the events. Threshold: 10
Number of meteors in one hour intervals
| December 2000
UT | 21 22
---+--------
0 | 36
1 | 12
2 | 15
3 | 18
4 | 23
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
16 |
17 |
18 |
19 |
20 | 27
21 | 27
22 | 30
23 | 34
---+--------
UT | 21 22
| December 2000
Notes:
. addition to RMOB0011: Leg is the Hungarian name of Lehnice. This area was
part of Hungary but is now part of Slovakia.
. the report is generated with my new program to convert Meteor 4.0 *.STA
files
to RMOB report format - Szabolcs Kiss
Ervin Szlanicska via Szabolcs Kiss
---------------------------------------------------------------------------
Observer: Istvan Tepliczky
Location: Tata, Hungary (47 40' E, 18 24' N)
Frequency: 91.8 MHz
Antenna : dipole, horizontal polarisation, azimuth W, elevation 0 deg.
Receiver: Videoton RT-7300S
Observing method: Electronic interface on LINE output audio signal are fed in
COM port of a PC. METEOR v 4.0 version processes the signal
and records on hard disk the time of the events.
| November 2000
UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
---+------------------------------------------------------------
0h| 1 5 1
1 | 5 1 3
2 | 4 0 0
3 | 6 5 2
4 | 1 5 1
5 | 4 5 2
6 | 3 1 0
7 | 0 5 3
8 | 0 3 1
9 | 2 2 3
10 | 0 1 1
11 | 0 1 1
12 | 6 0 2
13 | 1 2 1
14 | 0 1 2
15 | 1 0 3
16 | 5 1 0
17 | 2 2 1
18 | 7 1 0
19 | 0 6 0 0
20 | 0 1 0 1
21 | 1 3 0 2
22 | 0 3 2 2
23 | 0 4 2 0
---+------------------------------------------------------------
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
---+------------------------------------------------------------
0 | 0 5 10 3 2 1 4 3 0 4 3 1 3 4 0
1 | 1 2 26 3 3 7 5 2 4 3 6 1 7 2 4
2 | 7 5 24 3 3 3 0 3 0 2 5 4 5 2 2
3 | 4 4 37 0 2 6 3 2 1 2 3 1 2 0 1
4 | 4 6 18 3 3 3 3 2 4 2 4 3 6 3 1
5 | 4 5 12 4 2 19 0 2 2 4 5 3 1 0 1
6 | 1 4 28 0 5 44 3 3 1 3 4 5 5 1 1
7 | 3 17 26 1 5 26 0 1 1 6 0 4 1 1 0
8 | 5 12 19 30 2 36 2 4 3 2 3 5 1 2 2
9 | 3 4 9 3 3 4 1 5 4 4 2 3 2 2 0
10 | 3 2 5 0 4 5 0 1 2 1 2 1 1 2 0
11 | 1 1 2 2 2 6 2 4 3 3 1 2 4 2 1
12 | 1 1 1 2 2 1 1 6 0 4 3 0 2 0 0
13 | 2 5 0 3 0 0 0 2 3 1 1 4 5 4 2
14 | 0 5 0 0 1 0 1 0 3 1 1 0 28 1 1
15 | 1 2 1 0 3 4 2 1 0 2 1 1 38 0 5
16 | 0 0 1 1 1 2 1 4 4 3 0 1 58 0 0
17 | 4 0 0 2 0 0 2 3 4 5 0 2 0 4 18
18 | 1 1 0 2 0 2 0 6 2 3 0 2 0 19 36
19 | 2 6 0 1 1 0 3 3 1 2 0 3 1 2 12
20 | 3 3 1 1 0 1 1 4 4 1 0 6 4 3 0
21 | 2 3 0 0 2 0 0 2 1 1 1 2 1 11 9
22 | 4 8 0 3 2 0 1 2 2 2 0 2 5 9 3
23 | 1 8 0 3 6 1 2 1 3 0 1 3 2 4
---+------------------------------------------------------------
UT | 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
| November 2000
Notes:
. 3 peaks of Leonids are detected.
. The detection system is under testing. It was the first observation
with this equipment.
Istvan Tepliczky via Szabolcs Kiss
---------------------------------------------------------------------------
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
| December 2000
UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
---+-------------------------------------------------------------------
0h| 8 13 44 13 18 15 12 5 6 10 3 1 4 7 21 11 15
1 | 17 14 45 21 26 10 11 9 9 11 4 2 4 3 20 19 22
2 | 15 23 35 22 23 16 14 4 5 8 3 4 4 5 24 17 18
3 | 12 13 60 32 28 5 11 6 8 3 5 8 8 10 27 22 21
4 | 17 9 60 27 25 17 13 11 7 6 7 8 5 6 15 23 25
5 | 45 29 33 20 24 10 3 9 11 8 6 4 8 9 41 21 20
6 | 15 43 18 23 21 2 5 9 7 5 2 5 15 10 24 14 21
7 | 8 62 40 11 24 4 7 3 9 7 6 13 10 15 19 17 21
8 | 3 10 30 10 23 5 2 8 5 4 5 4 8 12 16 23 18
9 | 8 8 6 12 8 3 3 2 4 6 6 1 5 9 14 20 14
10 | 9 11 8 15 6 3 8 5 6 0 3 2 4 2 8 20 15
11 | 6 9 9 8 2 8 3 0 1 2 3 3 3 0 11 16 10
12 | 8 4 5 10 4 4 4 2 2 1 2 2 4 1 10 12 14
13 | 7 5 5 13 2 3 2 3 1 2 0 0 0 1 4 13 11
14 | 6 3 13 7 3 3 3 1 2 1 2 1 0 2 8 6 9
15 | 0 2 9 9 0 4 5 1 0 0 0 0 3 14 7 3 8
16 | 4 5 7 8 3 3 1 2 0 0 1 1 0 25 6 8 4
17 | 4 3 5 6 5 2 1 2 1 1 0 1 3 44 6 9 3
18 | 3 7 6 3 7 4 2 3 3 3 1 4 6 18 6 8 10
19 | 6 7 9 8 8 12 4 8 3 2 5 7 17 16 9 4 11
20 | 8 12 11 8 7 7 5 6 4 5 6 14 17 23 9 20 5
21 | 5 23 21 16 6 12 10 9 7 6 13 8 27 37 7 16 13
22 | 12 51 11 18 17 19 5 17 12 7 9 18 23 22 11 26 18
23 | 5 37 14 12 11 15 4 9 5 4 5 7 14 25 0 0 0
---+-------------------------------------------------------------------
UT | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
| December 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.
December 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
Dec |16 17 18 19 20 21 22 23 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15UT
----+-------------------------------------------------------------------------
2 | 19 11 10 6 5
3 |11 20 18 25 26 15 17 27 32 25 17 15 10 E E
10 | 8 13 5 E E 9 7
11 |10 6 30 31 23 20 19 16 13 22 25 23 22 13 19 12
16 | * * * * * * * * * * * * * * * * * * * E E E E 20
17 |16 32 51 33 53 72 63 62 46 70 53 58 30 8 10 11 * * * * * * * *
23 | * * * * * * * * * * * * * * * 7 8 12 8 4 8 7 6 8
24 |14 15 27 23 36 44 34 43 56 37 45 30 30 19 I 10 22 5 7 5 3 2 4 5
25 | 6 10 11 14 18 25 23 21 15 9 19 11 12 10 * * * * * * * * * *
30 | * * * * * * * * * * * * * * * * * * 13 9 8 9 11 9
31 |21 23 52 48 41 54 40 21 19 9 6 * * * * * * * * 10 4 6 7 9
----+-------------------------------------------------------------------------
Dec |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
December strong and long lasting echoes list
LT strength duration
dBi s
Dec 3 04h42m 60
10m18m 20
10h58m 60
11 02h52m 60
07h07m 60
08m27m 20
11h30m 20
16 00h58m 20 interference?
+16 other reflections until 11h30
24 02h09m 20
05h52m 60
07h18m 60
09h15m 20
10h04m 20
12h07m 20
31 05h34m 60
05h37m 20
Garfield Tsao
---------------------------------------------------------------------------
Observer: Bruce Young
Location: Deception Bay, Queensland, Australia (27 30' S, 153 10' E)
Frequencies: 88.3 MHz
Transmitter: 88.3 MHz ABC Classic FM, 80 kW transmitter
Location Cootamundra, New South Wales (960 km)
Antenna: 3-element Yagi FM, horizontally polarised,
azimuth 215 degrees (SW), elevation 0 deg.
Amplifier: TV masthead amplifier 15 dB gain VHF
Receiver: Samsung domestic type FM radio, digital tuning
Observing: Electronic interface on LINE output audio signal is fed in
method COM1: of PC IBM 486 25 MHz.
METEOR v 4.0 version processes the signal and records on
floppy disk the time of the events.
METEOR parameters: THRESHOLD = 8
| December 2000
UT | 18 19 20 21 22 23 24 25 26 27 28 29 30 31
----+--------------------------------------------------------
0h| - 16 - 22 27 20 25 10 23 - 27 27 18 21
1 | - 13 37 11 16 15 15 3 8 - 12 15 10 11
2 | 7 12 16 10 10 8 121t 9 10 - 12 14 14 14
3 | 14 7 11 12 3 7 111t 8 9 - 12 9 16 12
4 | 17 7 11 17 13 13 10 1 5 - 5 13 6 14
5 | 5 6 10 4 9 14 5 4 7 - 9 8 8 11
6 | 2 7 2 4 9 4 10 5 20t - 7 10 10 8
7 | 7 6 9 6 11 8 2 13 23t - 5 8 14 12
8 | 10 7 15 10 7 14 7 29 7 - 11 17 24 14
9 | 11 6 8 13 10 23 5 9 15 - 25 3 17 11
10 | 9 18 11 13 7 17 11 11 18 - 13 12 21 12
11 | 23 15 22 21 20 22 14 14 14 - 11 11 21 40
12 | 30 32 27 27 34 65 13 23 26 - 19 24 27 18
13 | 48 36 24 33 33 30 25 39 28 - 36 34 31 39
14 | 53 40 40 59 35 57 38 40 29 - 45 34 37 25
15 | 56 41 54 45 55 50 21 28 35 - 43 50 31 40
16 | 53 53 60 45 57 33 31 27 30 58 35 45 42 31
17 | 46 44 51 44 47 54 37 36 28 49 35 44 34 29
18 | 51 43 45 52 60 47 34 29 24 42 51 37 37 25
19 | 60 64 63 62 40 62 28 28 24 54 44 49 41 41
20 | 60 67 48 72 74 65 44 67 36 44 63 51 33 56
21 | 53 64 43 36 45 69 37 58 43 65 56 45 53 65
22 | 45 46 36 49 46 47 38 49 41 47 35 45 54 43
23 | 23 47 27 35 30 46 18 31 12 37 29 26 28 39
----+--------------------------------------------------------
UT | 18 19 20 21 22 23 24 25 26 27 28 29 30 31
| December 2000
Notes:
. t thunderstorm
. local time = UT + 10 hours
. results 1st - 17th Dec unreliable and not reported due to
excessive "non-meteoric" reception.
. I had been plagued by either Sporadic E, tropo or both and had almost
"given up" when I found that an old friend was also doing this and he
suggested another direction/frequency. The new SW direction/frequency
(away from the tropics) has been great and virtually eliminated reception
other than via meteors. We both now have to do some more work on
thunderstorms which are quite prevalent in our area this time of year.
Bruce Young
---------------------------------------------------------------------------
Observer: Ilkka Yrjölä
Location: Finland (26 35' E, 60 54' N)
Frequency: 88.7 + 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).
Geminids 2000
UT | 12 Dec 13 Dec 14 Dec 15 Dec
----+-------------------------------
0 | 289 445 530 226
1 | 251 321 462 210
2 | 237 428 458 235
3 | 378 679 549 239
4 | 572 1454 817 326
5 | 795 1343 916 304
6 | 879 1491 880 285
7 | 650 1164 1067 500
8 | 406 807 559 275
9 | 406 501 409 216
10 | 275 434 334 171
11 | 232 332 416 239
12 | 223 267 342 203
13 | 180 361 262 160
14 | 214 406 245 168
15 | 238 387 270 108
16 | 428 617 404 140
17 | 471 731 372 144
18 | 489 865 328 165
19 | 536 1096 293 202
20 | 722 1324 408 230
21 | 563 1765 378 212
22 | 591 1713 361 277
23 | 525 810 288 257
----+-------------------------------
UT | 12 Dec 13 Dec 14 Dec 15 Dec
Ursids 2000
UT | 20 Dec 21 Dec 22 Dec 23 Dec
----+-------------------------------
0 | 142 143 187
1 | 167 184 181
2 | 201 297 225
3 | 131 147 353
4 | 153 221 280
5 | 112 224 275 420
6 | 214 242 399 256
7 | 208 128 837 478
8 | 276 198 769 287
9 | 237 161 543 270
10 | 298 157 445 322
11 | 215 143 391 293
12 | 258 150 459 141
13 | 145 139 231 227
14 | 139 121 285 236
15 | 135 127 119 138
16 | 105 126 175 211
17 | 75 118 286 361
18 | 114 127 197
19 | 94 116 201 210
20 | 165 109 120 154
21 | 140 153 218 122
22 | 122 204 94
23 | 178 175 140
----+-------------------------------
UT | 20 Dec 21 Dec 22 Dec 23 Dec
Note:
. The scaling to match it to old Eurosignal data was once again under
magnifying glass after the frequency change in October. Since this shower
(the Geminids) is stable it can be used to calibrate the parameters for
different meteor rates up to ZHR ~120 or so. I hope I succeeded.
. Aurora during the night hours of Dec 23
. The Ursid outburst came as predicted, thanks to P. Jenniskens and E.
Lyytinen for informing about it.
Ilkka Yrjölä
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
mailto:Ea3btz@retemail.es
http://personal3.iddeo.es/ea3btz (in Spanish)
Jean-Louis Aillaud
Sainte Clotilde, Réunion Island
mailto: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, mailto:paul_vauterin@applied-maths.com
Rafael Haag
Porto Alegre, Brazil
mailto:HAAG@if.ufrgs.br
H. W. Kelsey, A.L.P.O.
Conway, Arkansas, USA
mailto:wkelsey@conwaycorpdot net
Szabolcs Kiss
mailto:achilles@freemail.hu
Alastair McBeath
IMO: International Meteor Organization
12A Prior's Walk, Morpeth, Northumberland, NE61 2RF, England, U.K.
mailto:vice_president@imodot net
Hiroshi Ogawa
University of Tsukuba, Japan
mailto: HZH02257@nifty.ne.jp
Radio Meteor Obs. http://homepage2.nifty.com/~baron/radio.htm
Sadao Okamoto
mailto:s-okamo@js.sugiyama-u.ac.jp
Ingo Reimann
Lübeck-Travemünde, 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
Istvan Tepliczky
Budapest, Hungary
mailto:tepi@mcse.hu
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 Yrjölä
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 (RMOB0012) 7 January 2001
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