Re: video of bright flasher!

From: Leo Barhorst (leobarhorst@zonnet.nl)
Date: Sun Sep 19 2004 - 07:31:51 EDT

  • Next message: Tony Beresford: "sep 18 observations"

    Hi Kevin,
    Great video again.
    
    Norad 10637 is 1978-12 A or IUE-1, International Ultraviolet Explorer.
    
    This is what I have on this launch in the Revised RAE tables of Earth
    satellites on my homepage.
    
    
       IUE 1**         1978-12 A  1978 Jan 26.73   Octagonal- 4.3 long   1978
    Jan 26.8   28.71   840.64   29505   173     46081   0.778  257
    
       [Delta 2914 628 [10637]    >million         cylinder   1.3 dia    1978
    Jan 28.3   28.63   1435.7   42157   25669   45888   0.240  257
    
       #138]           CC-LC17A   years            669 full              1996
    Oct 10.37  35.64   1439.04  42222   30216   41472   0.133  61
    
                                                                         2004
    Jun 18.37  40.28   1438.92  42220   29187   42496   0.158  120
    
    
    
    D  IUE 1           1978-12 B  1978 Jan 26.73   Cylinder   6.4 long   1978
    Jan 26.8   28.74   96.56     6972   164     1024    0.062  254
    
       Delta 2nd stage [10638]     26 days         annulus     1.52 and
    
                                  1978 Feb 21       350?      2.44 dia
    
    
    
       IUE 1           1978-12 C  1978 Jan 26.73   Sphere-    1.32 long  1978
    Jan 27.0   28.71   846.69   29648   177     46367   0.779  257
    
       Star-37E PKM   [10723]     50 years         cone       0.94 dia   2004
    Jul 6.13   29.28   391.23   17720   266     22417   0.625  171
    
                                  66
    
    
    
       Fragment        1978-12 D  [26785]                                2004
    Jul 3.53   30.64   550.00   22237   466     31251   0.692  212
    
    
    
    **   IUE is International Ultraviolet Explorer, launched by NASA; shut down
    1996 Sep 30.78
    
    In PPAS I found thiese entries:
    
    78- 12 A 98-03-25 05:16      RIK  60   1.0  14  4.3   F'FF_F', mag 11
    78- 12 A 98-05-26 06:45      RIK 122.0 1.0  28  4.36  f'ff_f', mag 12
    78- 12 C 97-08-04            MM                15.8   v2,wow
    78- 12 C 97-08-28            MM                16     v3
    
    I don't know who RIK is, but MM is Mike McCants.
    
    So when Kevin took this video is was at quite a distance, between 30000 and
    40000 km above the earth.
    Perhaps Kevin can give us the brightness of the star(s) in the field to make
    an estimate of how bright the flashes were.
    
    I've timed the flashes from the video with my stopwatch; better would be to
    use the timestamps on the video, but I
    don't have the proper program to view it picture by picture.
    I got: 4.31 4.46 4.43 4.46 4.43 sec; this gives a period of 4.42 sec.
    In the 8 years since RIK observed it it hasn't got up much.
    
    The perigeemotor can also be bright as Mike has reported.
    It now has (still) a low perigee.
    
    Greetings and clear, dark skies
    Leo Barhorst, Medemblik NL
    Cospar 4252 52.76350 N 5.09114 E 2 m ASL
    http://www.home.zonnet.nl/leobarhorst/index.html
    
    ----- Original Message ----- 
    From: "Kevin Fetter" <kfetter@yahoo.com>
    To: <seesat-l@satobs.org>
    Sent: Sunday, September 19, 2004 11:38 AM
    Subject: video of bright flasher!
    
    
    > It's 8MB in size, showing a few flashes. I just love what appear, when you
    looking for something
    > else. I was waiting for another pass of noss 2-1 in the nearby area of
    sky, when I noticed this
    > one!
    >
    > http://www.kfetter.100megs26.com/satvideo/10637.wmv
    >
    > It seemed to get fainter over time, so I caught it at the right time it
    seems.
    >
    > Will be keeping an eye on this one for sure.
    >
    > Kevin
    >
    >
    >
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