USA 129 multiple flashes (??)

From: Bjoern Gimle (b_gimle@algonet.se)
Date: Sun Aug 20 2000 - 05:22:13 PDT

  • Next message: Paul Henney: "Re: USA 129 multiple flashes (??)"

    I observed USA 129 18 s early wrt to Epoch 00228.85796902, 12 s early
    wrt 00229.87321181 and 00230.88704950 from Michael (sic) McCants (8 s
    late wrt 00226.15220689).
    
    Contrary to my recent obs of a long (>20s) flare, I saw six flashes,
    all but one sub-second. If this was some other object, I am surprised
    that I didn't see USA 129 trailing. If OTOH it was USA 129, not only
    the flashing, but being 12 s off a very new elset is unusual.
    
    According to my notes the first position was 1/4 from an upper
    reference star towards a lower. This results in an off-track error
    of 0.3 deg. If it were 1/4 from the lower, it would be close to the
    predicted track (both included below). The second position (20:40:03.7)
    does not agree with the timing of USA 129, there is no asterism like
    the one I noted near the expected position, and I have very little
    faith in my identification of the position anyway.
    
    I find no other object in alldat.tle to match these obs either.
    
    24680 96 072A   5919 G 20000819203739000 57                      I-010 10
    24680 96 072A   5919 G 20000819203807000 17 25 1542780+132700 29 I+030 10
    24680 96 072A   5919 G 20000819203807000 17 25 1542120+130500 29 I+030 10
    24680 96 072A   5919 G 20000819203818600 37                      I-020 20
    24680 96 072A   5919 G 20000819203822900 37                      I-020 20
    24680 96 072A   5919 G 20000819203837500 37                      I-020 20
    24680 96 072A   5919 G 20000819203908100 37                      I-020 20
    24680 96 072A   5919 G 20000819204003700 17 25 1212800+335700 29 I+030 10
    24680 96 072A   5919 G 20000819204020000 37                      I-020 20
    
    
    -- b_gimle@algonet.se (home)  http://www.algonet.se/~b_gimle --
    -- COSPAR 5919, MALMA,    59.2576 N, 18.6172 E, 23 m         --
    -- COSPAR 5918, HAMMARBY, 59.2985 N, 18.1045 E, 44 m         --
    
    
    
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