High-priority flashing objects (BWGS)

Bart De Pontieu (BDP@MPE.MPE-GARCHING.MPG.DE)
Sat, 30 Dec 1995 00:38:21 +0100 (CET)

High-priority objects of the Belgian Working Group Satellites
-------------------------------------------------------------

The Belgian Working Group Satellites has been active in collecting flash
period measurements since 1987. Our priority list contains over 200
satellites. An overview of our program (including recent observations) can
be obtained by sending a message with Subject: archive get program/program.*
to SeeSat-L-request@iris01.plasma.mpe-garching.mpg.de

Here is an overview of the objects which are rated 'top-priority'. These 
are objects of which we suspect that the flash period is changing in an 
atypical way. Usually this means the rocket's rotation around its own axis 
is accelerating, so that the flash period becomes shorter. This behaviour is 
not fully understood, so detailed observations are very much needed. We always
welcome new observers. For more details on how to report/perform flash period 
measurements, contact me or Tristan Cools (addresses below), or check out
our Web-pages at this URL:  http://users.skynet.be/satimage/bwgs/bwgs.htm

The following format is used :
LINE 1 : COSPAR-ID, priority code, number of observations, NORAD-number, name 
of satellite, remark on reason for top-priority.
LINE 2,3,4 : most recent observations in this format :
Date, Initials of observer, flash period in seconds, remarks about magnitude
and appearance.

65-  8 A !  40     1001/Transtage 3,Titan 3A: no acceleration anymore
95-09-24 MM   4.95  5.5-8             
95-09-26 DB   4.95                    
95-10-10 MM   5.01  7-9, flash to 5.5 

79- 30 B ! 131     11327/C1 Kosmos 1092: be alert !
95-08-16 JEV  6.81                    
95-08-20 JEV  6.25                    
95-10-02 RE   5              

81-116 J ! 536     12983/C1 Kosmos 1320-1327: no acceleration ?
95-08-17 MM  45     5-8, ssm          
95-11-25 KJ  55     mag +5->inv       
95-12-08 KJ  57             

84-109 B ! 138x    15360/C1 Kosmos 1605: continues to accelerate !
95-11-04 KJ  14.3                     
95-11-06 WV  14.1                     
95-11-15 KJ  13.5            

85- 94 G !  17     16144/F2 Tsyklon K1690-1695: last obs dp ?
95-08-02 LB         S, mag 6          
95-08-08 LB  41     MM, mag 5->inv    
95-08-17 MM  42     6-7.5, broad max  

85-116 B ! 110     16369/C1 Kosmos 1709: last obs S
95-02-21 LB   7.70  AA, mag 4->5      
95-07-24 JVS        S                 
95-07-24 KD         S           

87- 98 B !  33     18586/C1 Kosmos 1898: still going down ? 
95-09-15 JEV 26.5   broad max; min    
95-09-23 MM  25.5   4-6.5             
95-09-26 MM  26.0   4.5-7.5, ssm     

88- 16 J ! 236     18945/C1 Kosmos 1924-1931: accelerating ?
95-05-23 RO  42     ? mag 5           
95-09-23 MM         S, 7              
95-09-26 MM         S, 9              
        
89- 28 B !  98     19922/C1 Kosmos 2016: dtm 
95-05-21 FD  31.3                     
95-06-26 DC  28     MM, mag 5->7      
95-08-23 WN  39     C* 2016 r, F'F' 

90-111 B !  28     21015/C1 Kosmos 2112: flash period is rising again
95-05-06 PW   8.33                    
95-09-16 JEV 10.83                    
95-09-24 MM  11.4   6-8.5            

91- 13 B ! 188     21131/C1 Kosmos 2135: going down ? to be checked 
95-08-08 LB  18.0   Ff, mag 4(5)->inv 
95-08-16 TC  27.8   AA, mag max +5    
95-08-17 MM  35.5   5.5-inv, flsh at s

91- 59 B ! 171     21667/C1 Kosmos 2154: going down ?  to be checked !
95-10-10 WN  26.2   C* 2154 r         
95-10-20 MM  25.5   4.5-7.5           
95-10-21 TC  24.2   FF, mag +3.5      

92-  8 B ! 110x    21876/C1 Kosmos 2180: still going down !
95-08-05 WV  17.4   double P ?        
95-08-23 WN   9.11  C* 2180 r, F'f'F' 
95-08-28 JEV 17.4               

92- 20 B ! 161     21938/C1 Kosmos 2184: no change
95-10-08 MM  46     5-9               
95-10-28 LB  44.4   AA, mag 5->inv    
95-11-05 LB  40.9   AA, mag 5->inv    

94- 74 B !  52     23343/J1 Zenit Resurs 1-3: first Zenit with small acceleration 
95-09-26 RE   3                       
95-09-27 RE   2.88                    
95-10-01 RE   2.9          

Cheers,
    Tristan Cools (tcools@nic.INbe.net)
  & Bart De Pontieu (bdp@mpe.mpe-garching.mpg.de)