Intelsat 512 and ASC 1

From: Ed Cannon (ecannon@mail.utexas.edu)
Date: Mon Nov 05 2001 - 05:46:31 EST

  • Next message: Michel Jacquesson: "Recent observation"

    Found Intelsat 512 (85-087A, 16101) flashing brightly every 21.4
    seconds, as well as some half-period flashes, from 0:53:10 to 
    1:01:10 UTC Nov 5.  Don't know when it started, but Mike McCants 
    said that its maxima were down to +11 by 1:05.  Brightest maxima 
    were +3.5 if not +3.0.  I believe that its flash window is about
    13 minutes later per night.
    
    I was able to observe very bright (+2) flashes from ASC 1 (85-76C, 
    15994) every 7:44.50 from 3:09:22 to 5:18:25 (with a 51-plus 
    minute break between leaving the BCRC observing site and finding 
    it again after I got to my apartment).  As 7:44.50 * 186 equals 
    86,397 seconds (3 seconds short of one day), it appears that it 
    will flash at almost the same times tonight, except perhaps 
    shifted in phase.  It was still going strong when I called it 
    quits.  
    
    3:09:22 UTC Nov 5 (times rounded off)
    3:17:07
    3:24:51
    3:32:36
    3:37:47 fractional time
    3:40:20 fractional time
    left site, found it again after getting home
    4:31:58
    4:39:42
    4:47:27
    4:55:11
    5:02:57
    5:10:41
    5:18:25
    
    Also saw Gorizont 14, Superbird A (between ASC 1 flashes), and
    a couple of bright flares from LEOs.  
    
    Obs site was BCRC -- 30.315N, 97.866W, 280m (except for the 
    few ASC 1 flashes I saw from outside my apartment).
    
    Ed Cannon - ecannon@mail.utexas.edu - Austin, Texas, USA
    
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