Acceleration of 92- 8 B = 21876 = C 2180 r

Kurt Jonckheere (kjonckheere@unicall.be)
Mon, 27 Jan 1997 00:00:38 +0100

Leo wrote :

>78- 18 B 97-01-25 19:14:37   LB   61.4 1.0  20  3.07  FF, mag 5->7, sm, mag 7
>78- 18 B
>It seems 78- 18 B is accelerating a bit. In dec 96 it was 3.11 
This observation of Leo is still within the error flag 
of 3.11 +- 0.05 (1.0 / 20).  To be followed to see if the 
decrease of the period is real.

>92-  8 B
>Is absolutely accelerating! 
It has been a top-priority object for some months, because it had a 
sudden jump in Mean Motion during November 96.  
The table below, extracted from our archive shows the latest obs.
Unfortenately this object was not observed for more than two months.

Observations of this object are appreciated very much!  We need to 
find out if it is still accelerating or already rotating slower again.

PPAS:
92-  8 B 96-10-25 17:55:18   LB   74.5 0.2   4 18.6   FF, mag 4->inv
92-  8 B 96-11-06 18:10      KJ  155.4 1.5   8 19.4   FF, 4->inv, later MM
92-  8 B 96-11-06 18:11      WV  159.4 0.5   8 19.9
92-  8 B 96-11-15 17:04      KJ  179.0 0.4  14 12.79
92-  8 B 96-11-15 17:04      WV  127.9 0.3  10 12.79
92-  8 B 97-01-25 20:16:27   LB  126.4 0.2  22  5.75  FF, mag 4->inv

You can use this elements from the latest Molczan file (thanks) to make
predictions for your site.
Cosmos 2180 r    7.4  2.4  0.0  5.5 v
1 21876U 92008  B 97 23.12550566  .00000078  00000-0  82193-4 0  8007
2 21876  82.9246 250.6781 0034619 299.8095  59.9623 13.74536664247407

Please send your observations as soon as possible.

Happy observing,

Kurt J

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