ACCELERATION REPORT 25 Mar 96 : 89- 28 B, ...

Kurt Jonckheere (kjonckheere@unicall.be)
Mon, 25 Mar 1996 20:39:55 +0000

THE FOLLOWING OBJECTS HAD A JUMP IN MEAN MOTION AND MIGHT ACCELERATE
87- 27 B = 17590   19922 = 89- 28 B
-----------------------------------

THE FOLLOWING OBJECTS HAD A JUMP IN MEAN MOTION AND HAVE ACCELERATED
92-  8 B = 21876
-----------------

17590 = 87- 27 B : No observations yet?

19922 = 89- 28 B
My latest run of MMJUMP showed that this rocket had a sudden jump in 
Mean Motion somewhere during the last two weeks.  So it might be
accelerating.  Who checks it?!
"Date"                  Mean Motion     first derivative of MM
ep: 12805.664266        mm 13.764238    mmdot 1.52e-06
ep: 12814.096669        mm 13.764267    mmdot 1.76e-06
ep: 12818.603632        mm 13.76428     mmdot 1.45e-06
ep: 12827.617533        mm 13.764303    mmdot 1.24e-06
ep: 12840.501937        mm 13.763984(!) mmdot -1.39e-05
                                **
Latest elements from OIG:
19922
1 19922U 89028B   96085.01408946 +.00000247 +00000-0 +23643-3 0 02050
2 19922 082.9546 055.2050 0036837 356.3795 003.7084 13.764095963502031 


92-  8 B = 21876
>>Jan Vansteelandt just reported me an observation of last Thursday:
>>92-  8 B 96-03-14 21:06      JVS 186.8 0.8  20  9.34
(Jim Varney:)
>92 -8B (Cosmos 1280 RB) passed over my zenith last night.  I made
>this observation
>92-  8 B 96-03-23 04:12      JEV  92.7 0.3  10  9.27 AA, 4->inv
>
>The difference in observed periods is too small to conclude the object
>is still accelerating -- it's probably holding steady at ~ 9.3 sec.
>
>Quite an acceleration!  I last saw it August 28, 1995, with a period of
>17.4 seconds.  Kurt and WV saw it at the end of December at 18.8 sec and
>19.0 sec, respectively.

We (Jan Vansteelandt, Mike Rosseel and I) saw it again last weekend:
92-  8 B 96-03-23 20:02      KJ  280.1 0.8  30  9.34

As Jim already said, it seems that Jan picked up this object at the end
of the acceleration and we are now probably at the beginning of the new
rise of the period.

Happy observing,

Kurt Jonckheere (kjonckheere@unicall.be)