Re: Has OIG "lost" Iridium 84 ?

From: Bjoern Gimle (bjorn.gimle@tietotech.se)
Date: Thu Jan 11 2001 - 07:18:22 PST

  • Next message: MALEY, PAUL D. (JSC-DO): "Iridium failure list"

    > is that published, but with a natural small drag term. Here is another
    > butchered elset
    > Iridium 84 ?     4.0  1.8  0.0  6.0 d  7.3       724 x 721 km
    > 1 25530U 98066D   01005.63685683  .00000400  00000-0 -55546+1 0  1485
    > 2 25530  86.5376 340.1197 0002257 311.1302  49.0069 14.51006879116045
    
    Your elset is only for SGP, since it has a huge negative BStar value, also I
    think the drag term should be higher, as seen by looking at other low-orbit
    uncontrolled Iridiums. Here is an improved version for SGP and SGP4, and
    your "operational" elset in complete form.
    
    Iridium 84 ?     4.0  1.8  0.0  6.0 d  7.3       724 x 721
    1 25530U 98066D   01005.63685683  .00001000  00000-0  22222-3 0    02
    2 25530  86.5376 340.1197 0002257 311.1302  49.0069 14.51006879116045
    Iridium 84 reinstated                            779 x 776
    1 25530  98066D   01011.00576000  .00000400  00000-0  22222-3 0    05
    2 25530  86.3944 338.02   000237   65.0000 295.0000 14.34221200000005
    
    
    
    
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