RE: New Satellite

From: Ted Molczan (ssl3molcz@rogers.com)
Date: Fri Sep 24 2010 - 14:32:56 UTC

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    Congratulations Scott, on your discovery of the last of the geosynchronous payloads or rocket-bodies
    on USSTRATCOM's embargoed list: the Transtage of DSP F7 (77007C / 09855).
    
    My solution is similar to yours:
    
    DSP F7 r2                                            35741 X 35825 km
    1 09855U 77007C   10267.11648979  .00000000  00000-0  00000-0 0    02
    2 09855  13.6654 338.7340 0010017 221.9760 137.9682  1.00287480    04
    Arc 20100917.12-0924.21 WRMS resid 0.002 totl 0.002 xtrk
    
    Six years ago, Mike Waterman searched his paper archives for official 2-line elements, issued prior
    to the present embargo, which came into effect in late June 1983. Mike recovered numerous official
    elsets of 77007C, issued during 1979-83, which Jonathan McDowell placed in his public archive:
    
    http://www.planet4589.org/space/elements/09800/S09855
    
    Using Mike McCants' int3, I have propagated the above elements to the dates of those historical
    elements, and produced the following comparison:
    
    http://satobs.org/seesat_ref/misc/77007C_discovery_confirmation.txt
    
    The orbits are in excellent agreement, and the object's brightness is consistent with known
    Transtages; therefore, we can be confident of the discovery.
    
    Ted Molczan
    
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