ACCELERATION REPORT: 87- 49 B and 92- 36 B
Kurt Jonckheere (kjonckheere@unicall.be)
Sun, 7 Jan 96 20:10:28 +0000 (GMT)
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Hello,
I just saw 92- 36 B, the object I predicted to have had a
possible acceleration a month ago. It is still flashing very nicely.
It was very fascinating seeing it rotating so fast,
knowing that it was Steady some months ago.
A compilation of latest obs: (thanks to Paul Maley and Rainer Kracht)
92- 36 B 95-12-29 01:57 PM 2.41
92- 36 B 96-01-05 17:15:26 RK 21.0 0.2 9 2.34
92- 36 B 96-01-05 18:59:51 RK 82.1 0.2 35 2.35
92- 36 B 96-01-07 18:06 KJ 271.3 0.3 116 2.338
It continues accelerating. The flashing period seems to
decrease with approximately 0.01s/day.
Latest elements from OIG:
1 22007U 92036B 96005.05416125 .00005769 00000-0 58053-2 0 5890
2 22007 82.9295 18.5239 0030151 304.1424 55.6807 13.77065642104876
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About a week ago I had another observation session, but because
I went on holiday to Londen, I hadn't analysed my sightings till
now. I was surprised to see that I had observed one of the objects
that might have accelerated. [See my previous message]
I observed 87- 49 B = 18096 with 20.0 seconds on 27 December 1995.
In the beginning it had a small amplitude, but later on, the maxima
were easier to determine.
Latest obs (PPAS-archive of the BWGS):
87- 49 B 95-04-03 18:59:44 BD 29.1 0.3 2 14.6
87- 49 B 95-06-06 03:54 MM 106.6 1.0 6 17.8 6-inv
87- 49 B 95-07-22 22:53 WV 62.7 2 3 21
87- 49 B 95-07-23 22:19 JVS 98 3 5 20
87- 49 B 95-07-23 22:19 KD 126.8 4 6 21
87- 49 B 95-07-25 21:14 WV S, mag +6
87- 49 B 95-10-24 01:30 MM 25 2 1 25
87- 49 B 95-12-27 17:28 KJ 120.2 1.0 6 20.0 sa in the beginning
[Observations of Bram Dorreman, Mike McCants, Willy Verhaegen,
Jan Vansteelandt, Kurt Dequick and Kurt Jonckheere]
Next Table shows dates, mean motion (number of revolutions per day)
and the first derivative of the mean motion (MMdot). A change in
MMdot indicates that something not normal in happening.
Did I saw the beginning of the acceleration of the rocket?
87049_B = 18096
Date YYDDD.FFFF MMdot Mean Motion
95340.75916891 .00000044 14.33015110
95345.15726151 .00000088 14.33015880
95354.09306003 .00000064 14.33017025 95-12-20
95361.56280107 .00000612 14.33026164 95-12-27
96001.51922929 .00002666 14.33061997
96001.93807795 +.00002816 14.33065731
96002.56634761 .00002941 14.33070579
96002.98519354 +.00003066 14.33074240
96 03.96249866 .00003807 14.33082499
96004.93979854 +.00003476 14.33090897
[Does someone else has elements from between day 345 and 365 of 1995?]
Latest elements:
1 18096U 87049B 96004.93979854 +.00003476 +00000-0 +12728-2 0 04790
2 18096 074.0283 179.1540 0022692 080.7935 279.5848 14.33090897448216
Clear skies and happy observing,
Kurt Jonckheere (kjonckheere@unicall.be)
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