Acceleration Report : 8 Dec '96 : 87-106 B, 92- 12 B
Kurt Jonckheere (kjonckheere@unicall.be)
Sun, 8 Dec 1996 21:18:54 +0100
You can find the updated version of this Acceleration report via : http://uc2.unicall.be/kjonckheere/index.htm
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Observations of the following objects are needed very urgently :
The following objects had a jump in Mean Motion and * MIGHT * accelerate:
21938 = 92- 20 B 18710 = 87-106 B 21903 = 92- 12 B
The following objects had a jump in Mean Motion and ARE ACCELERATING !
21876 = 92- 8 B
The following objects had a jump in Mean Motion and HAD ACCELERATING
but there flashing period is are already going up again!
21984 = 92- 30 J
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18710 = 87-106 B
The Semi major axis decreased with about 50 m during the last month.
In September Leo Barhorst saw it with 72 seconds.
Cosmos 1904 r 7.4 2.4 0.0 5.5 v (from Ted Molczan's file, thanks !)
1 18710U 87106 B 96340.04797786 .00000490 00000-0 51081-3 0 2577
2 18710 82.9100 153.2924 0026630 138.4903 221.8268 13.75192758449240
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21876 = 92- 8 B
Evolution of the Flash Period of this rocket :
92- 8 B 96-11-06 18:10 KJ 155.4 1.5 8 19.4 FF, 4->inv, later MM
92- 8 B 96-11-15 17:04 KJ 179.0 0.4 14 12.79
Ron Lee also saw it flashing at 96-11-18 but couldn't measure a good period
because of changing Flash behaviour of this rocket.
For the moment this object is only visible for our Southern latitude
observers. Who of them makes the next observation ?
Latest elements :
Cosmos 2180 r 7.4 2.4 0.0 5.5 v
1 21876U 92008 B 96339.84470427 .00000099 00000-0 10367-3 0 7883
2 21876 82.9256 287.2379 0037339 73.7000 286.8252 13.74518757240634
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21903 = 92- 12 B
The Semi major axis has been going down since November 20, 1996.
Was seen on November 15 by Vince Gardiner with a period of 5.29 seconds.
Latest elements :
Cosmos 2181 r 7.4 2.4 0.0 5.5 v
1 21903U 92012 B 96339.10166499 .00000547 00000-0 58340-3 0 7802
2 21903 82.9358 335.1233 0043042 100.0552 260.5440 13.73615427237561
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21938 = 92- 20 B
92- 20 B 96-12-03 00:50.5 RGL 194.0 2.0 5 38.8 FF
92- 20 B 96-12-06 00:30.2 RGL 188.1 2.0 5 37.6 FF, 4->8
Is this rocket accelerating or not ??
Latest elements :
Cosmos 2184 r 7.4 2.4 0.0 5.5 v
1 21938U 92020 B 96340.04516261 .00001180 00000-0 12462-2 0 8056
2 21938 82.9277 165.0299 0029577 225.1224 134.7530 13.74407608232785
This object is also visible for Northern latitude observers although
in the morning hours.
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21984 = 92- 30 J
Cosmos 2187 r 7.4 2.4 0.0 5.5 v
1 21984U 92030 J 96340.11819330 -.00000547 00000-0 -50273-2 0 6642
2 21984 74.0041 353.1721 0123167 81.0729 280.4193 12.22105777201106
Evolution of the Flash Period of this rocket :
92- 30 J 96-12-02 02:19 RGL 122.5 0.8 10 12.25 FF, mag 4->inv
92- 30 J 96-12-03 01:53.8 RGL 124.2 1.0 10 12.42 FF, mag 5->inv
92- 30 J 96-12-03 03:52.0 RGL 122.9 1.0 10 12.29 FF, mag 6->inv
92- 30 J 96-12-04 01:28.0 RGL 249.3 1.0 20 12.47 FF, mag 5->9
92- 30 J 96-12-05 01:04.9 RGL 263.1 1.0 21 12.53 FF, mag 4->8.5
92- 30 J 96-12-08 01:47.5 RGL 192.3 1.0 15 12.82 FF, mag 4->8
Thanks to the daily observations of Ron Lee, we can conclude that
the acceleration is already finished and the period is going up again.
There is no excuse (only wheather of course) not to observe this object.
It is not only visible where Ron lives... For Northern latitude it is
visible in the morning and in the evening.
Happy observing !
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Kurt Jonckheere (kjonckheere@unicall.be) 51.2 N 2.9 E
Latest accelerations : http://uc2.unicall.be/kjonckheere/index.htm
observations collector for the Belgian Working Group Satellites:
Send your observations of flashing satellites, preferrably in the correct
PPAS format to obs@physics.oxford.ac.uk or obs@physics.ox.ac.uk
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