Re: Iridium 5 moved to non-operational orbit

From: Rod Sladen (rodsladen@crosswinds.net)
Date: Tue Aug 21 2001 - 04:43:21 PDT

  • Next message: Marcus Clark: "Correction!Mystery Flare"

    The latest elset for Iridium 5, via Alan Pickup's site, shows Iridium 5 back
    on station:
    
    Iridium 5        4.0  1.8  0.0  6.0 d   14       780 x 776 km
    1 24795U 97020D   01233.22151996 -.00000148  00000-0 -59883-4 0  6820
    2 24795  86.4007 213.6395 0002511  89.2625 270.8862 14.34217701224971
    
    This is in excellent agreement with the last preconfusion elset:
    
    Iridium 5        4.0  1.8  0.0  6.0 d   14       780 x 776 km
    1 24795U 97020D   01222.54695557  .00000196  00000-0  62816-4 0  6763
    2 24795  86.3970 218.0950 0002575  70.9299 289.2181 14.34218720223439
    
    but this is to be expected, as the position of operational Iridium satellites
    is tightly contained.
    
    As far as I can see, Iridium 5 could not possibly have manouvered from the low
    orbit in elset
    
    IRIDIUM 5
    1 24795U 97020D   01229.96916872 +.00000219 +00000-0 +59118-4 0 06826
    2 24795 086.4488 214.9303 0004886 069.4490 290.7336 14.43145200224504
    
    to its current operational position.
    
    So the constellation is complete once more, but this still leaves open the question
    of whether Iridium 5 remained on station all the time and was merely temporarily
    confused with Iridium 51, or whether Iridium 51 in fact replaced Iridium 5 on
    August 11.
    
    Anyway, OIG is now showing Iridium 5 and Iridium 51 as separate objects once
    again!
    
    
    -- 
    Rod Sladen, Beeston, Nottinghamshire, UK
    52.9230N, 1.2190W
    
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