ACCELERATION REPORT : 12 May 96: 94- 45 B

Kurt Jonckheere (kjonckheere@unicall.be)
Sun, 12 May 1996 15:43:08 +0000

The following objects had a jump in Mean Motion and * MIGHT * accelerate.
These objects need to be observed As Soon As Possible!
94- 45 B = 23190    89- 59 B = 20150

The following objects * HAVE * accelerated.
They are flashing nicely again.
89- 28 B = 19922   

The following objects also need to be checked: 
87- 98 B = 18586    90-  4 B = 20433  

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[Observations from Mike McCants, Jan Vansteelandt, Kurt Jonckheere
Willy Verhaegen, Jean-Pierre Rohart, Walter Nissen, Bram Dorreman 
and Leo Barhorst]

89- 28 B = 19922   

89- 28 B 95-11-08 01:43      MM  155.8 2     4 39.0   4-8, sm flsh to 3
89- 28 B 95-11-14 00:47      MM   37   1     1 37     4-6.5, sm
89- 28 B 96-02-21 19:41      JVS  59.9 1     2 30     M'M'
89- 28 B 96-04-26 23:18      KJ  131.7 0.3  10 13.17
89- 28 B 96-04-27 21:59      KJ  210.1 0.8  16 13.1
89- 28 B 96-05-04 21:29      KJ  298.0 0.5  22 13.55
89- 28 B 96-05-05 21:52:18   LB  134.1 0.5  10 13.4   AA, mag 4->inv
89- 28 B 96-05-08 21:25:14   LB   81.9 0.5   6 13.6   AA, mag 5->inv

------------------

87- 98 B 96-01-27 02:23      MM   86.6 2     4 21.7   sec max in sw
87- 98 B 96-01-28 01:51      MM  196.5 3     9 21.8   4.5-8
87- 98 B 96-01-29 17:56      LB  114.0 0.5   4 28.5   AA, mag 4->inv
87- 98 B 96-01-30 17:21      LB   77.6 0.5   4 19.4   AA, mag 4->7
87- 98 B 96-02-01 17:56      LB  121.5 0.2   6 20.25  AA, mag 5->7
87- 98 B 96-02-21 03:13:45   LB   65.9 0.2   4 16.5   AA, mag 4->inv
87- 98 B 96-04-03 20:18      JVS 108.4 1.2   6 18.0
87- 98 B 96-04-03 20:19      WV  142.2 0.5   8 17.8
87- 98 B 96-04-17  9:40: 1.2 WN  136.9 2.    8 17.1   M'M', C* 1898 r, mag 4->6
87- 98 B 96-04-27 00:43:33   LB  135.9 0.5   8 17.0   AA, mag 4->inv
87- 98 B 96-04-30 00:44:14   BD   48.5 0.3   3 16.2   4.5->inv; drap
87- 98 B 96-05-04 23:40      KJ   99.5 5.0   6 17     long max,diff per,sy eff?
=18586  
On May 4, I saw it flashing with different periods, so I couldn't deduce
a good period.  
Periods were: 15.1 - 15.4 - 17.3 - 18.6 - 33.1(2) - 19.9
Unfortenately I didn't made absolute timings, so we cannot use this obs
for DRAP... :-(
Is it still accelerating?



89- 59 B 95-04-04 22:29      RO        30      180    mag 7->10
89- 59 B 95-04-12 20:56:11   RO                       S
89- 59 B 95-12-01 17:46      WV                       LP +6-inv
89- 59 B 96-04-28 01:10      KJ  135.7 10    2 68     mag +3->inv
This one had a small MM jump in the beginning of April.  I saw it flashing
clearly, but with a high period.  
We still need more observation to confirm this.


90-  4 B 96-02-05 01:46      MM   76.8 1     5 15.3   4.5-inv
90-  4 B 96-02-05 18:26      KJ   90.3 2.0   6 15.1   hp, asymm
90-  4 B 96-02-05 18:26      WV   92.0 0.5   6 15.3
90-  4 B 96-02-05 18:27      TC   92.2 0.2   6 15.37  AA, mag +3.5
90-  4 B 96-02-21 04:24:00   LB  108.6 0.2   8 13.58  AA, mag 5->7
90-  4 B 96-02-27 04:32:10   LB   88.3 0.2   6 14.72  AA, mag 4->7
90-  4 B 96-04-13 19:55      WV   92.9 0.5   6 15.5   cirrus
90-  4 B 96-04-28 02:06:56   LB   79.7 0.5   6 13.3   AA, mag 5->inv
90-  4 B 96-04-30 00:59:56   BD   53.0 0.3   4 13.3   5.5->inv
The observation of Leo has been confirmed by Bram.  Is the period still
going down?
There was no mean motion jump, but at April 15, the perigee height suddenly
changed from decreasing to increasing.  Maybe this was linked with the
small change of the period.

94- 45 B 96-01-28 05:43      LB  124.4 0.2   8 15.55  AA, mag 4->7
94- 45 B 96-01-31 05:25      LB  154.0 0.1  10 15.40  AA, mag 4->inv
94- 45 B 96-02-08 01:46      MM  112.9 0.5   7 16.1   4.5-6
94- 45 B 96-02-16 19:40      WV   62.9 0.5   4 15.7   flat max
94- 45 B 96-02-21 18:31:44   JVS 134.2 2     8 16.8   var ->sa ->S
94- 45 B 96-02-21 18:33      WV   34.3 0.5   2 17.2   small ampl
94- 45 B 96-03-27 19:44      WV  150.0 0.3  16  9.38
The semi major axis of this rocket has increased since 11 Apr 1996.
Maybe the observation of Willy Verhaegen is also half a period.
It might be accelerating now.  Observations are needed urgently!

As you could read last hours it seems that 96- 17 B is propably 
not accelerating.


Happy observing,

Kurt J

----------------------------------------------------------------------------
          Kurt Jonckheere (kjonckheere@unicall.be)   51.2 N  2.9 E 
      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
                I Dreamed I Dream      --       Sonic Youth
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