THE FOLLOWING OBJECTS HAD A JUMP IN MEAN MOTION AND MIGHT ACCELERATE 87- 27 B = 17590 ----------------- THE FOLLOWING OBJECTS HAD A JUMP IN MEAN MOTION AND ARE ACCELERATING 92- 8 B = 21876 ----------------- WARN: 17590 = 87- 27 B ep: 12806.850643 mm 14.157002 mmdot 3.2e-07 ep: 12814.62299 mm 14.156949 mmdot -3.28e-06 ep: 12818.791805 mm 14.156923 mmdot -3.04e-06 ep: 12829.461119 mm 14.157006 mmdot 3e-06 [ 1 Mar 96] ep: 12836.585901 mm 14.158347 mmdot -5.8e-07 [ 8 Mar 96] ep: 12839.62389 mm 14.158348 mmdot 8.6e-07 [11 Mar 96] 1 17590U 87027 B 96 71.12388997 .00000086 00000-0 67841-4 0 5019 2 17590 71.0036 297.0725 0006718 265.3675 94.6678 14.15834800464221 Because the first derivative of the Mean Motion was already rather low, this objects slipped through my visual checking of the list of objects with changes in Mean Motion. If I've had looked better at the Mean Motion itself, I should have know better... Thanks to Russel for paying our attention to this object. Between 1 and 8 Mar the semi major axis suddenly lowered with about 500 metres! It seems that the jump in Mean Motion has already stopped. So as already mentioned by Tristan, this object is very likely to be accelerating! ---------------- 92- 8 B = 21876 This object had a period of about 19 seconds at the end of 1995. In January 1996 it had a jump in Mean Motion but wasn't visible. Last week it became visible again. 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 So this object has certainly accelerated. Is it still going down?? 21876 1 21876U 92008B 96075.15986171 +.00000158 +00000-0 +15031-3 0 07292 2 21876 082.9243 123.5993 0036607 088.9027 271.6323 13.74472077204273 -------- 92- 93 B showed no unusual change in orbital elements. -------- 93- 36 B : flashing period is going up again. No other unusual behaviour was found with the latest file from Ted Molczan. [Thanks Ted for your weekly element-file] Happy observing, Kurt Jonckheere (kjonckheere@unicall.be)