Re: Gorizont 14 and probably BS/Yuri 3A

From: Michael McCants (mmccants@jump.net)
Date: Sun Nov 24 2002 - 16:36:40 EST

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    Ed Cannon posted on 11/23:
    
    >Last night after Superbird A I saw Gorizont 14 (87-040A, 
    >17969) and what seems pretty certain to have been BS/Yuri 
    >3A (90-077A, 20771).  Gorizont 14's flash period was 
    >about 97.5 seconds; my 10 cycles occurred at about 3:55
    >to 4:10 UTC.  BS/Yuri 3A's half-period was about 95.5 
    >seconds; its first two and last flashes were very bright, 
    
    Ed and I observed Yuri 3A last night from BCRC.
    (Designation corrected above to 90-077A.)
    
    I observed two "double flashes" at an interval of 6:22.6.
    This is 4 times 95.7 seconds.  The double flash was
    magnitude 8 and 5, but some other later flashes were
    apparently about magnitude 3.  Other faint flashes and tumbles
    were observed at intervals of 48 and 24 seconds relative to
    the 95.6 second period.  Observed from before 3:56UT until
    about 4:15UT.
    
    Ed noticed a naked-eye Telstar 401 flash about 2:48UT.  I
    timed 5 cycles to obtain a period of 134.0 seconds.  It faded
    after that about 3:01UT.
    
    Superbird A was seen in the 8 inch from about 3:11UT until about
    3:15UT.  This series of flashes was only about 8th magnitude.
    Then the normal series of alternating flashes was seen from
    about 3:23UT until about 3:31UT.  I estimated that "phase shift"
    occurred about 3:26:30UT, but it seemed to me that the two
    phases were not separated in time by as much as they were
    a couple of years ago.
    
    Also timed: 24285 FAST period 2.5 seconds, 25789 Quikscat period
    3.6 seconds, 27494 Cosmos 2392 Deb 02 37H period 5.0 seconds,
    08398 Delta Deb period about 10 seconds, 09864 Palapa 2 PKM
    period about 40 seconds.
    
    What? PPAS entries?  I don't believe it.  :-)
    
    Desig    Date     Time       Ob  Time  Unc Cyc  Per   Comments
    90- 77 A 02-11-24 04:09      MM  765.2 0.5   8  95.7  fl to 3 or 5
    93- 77 A 02-11-24 04:01      MM  670.0 0.5   5 134.0  fl to 1, 5, 9
    89- 41 A 02-11-24 03:27      MM  180.8 0.2   8  22.60 fl to 3
    96- 46 A 02-11-24 01:56      MM   25.1 0.3  10   2.5  tumb to 9
    99- 34 A 02-11-24 01:05      MM   64.2 0.3  21   3.6  mag 6-7.5
    02- 37 H 02-11-24 01:17      MM   55.1 0.3  11   5.0  mag 6.5-8
    74- 89CA 02-11-24 01:13      MM                       mag 8-9, per~10
    77- 18 B 02-11-24 00:40      MM                       mag 10-inv, per~40
    
    Mike McCants
    Austin, TX (30.3N, 97.8W)
    
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