STSS Demo elements from observations

From: Ted Molczan (ssl3molcz@rogers.com)
Date: Tue Sep 29 2009 - 14:40:24 UTC

  • Next message: Robert Holdsworth: "Soyuz TMA-16 launched"

    Greg Roberts has reported the first visual observations of both STSS Demo
    payloads, after a highly successful weekend of radio observation, as he
    described in the notes of the following post:
    
    http://satobs.org/seesat/Sep-2009/0270.html
    
    See also this message, for his initial observations of the trailing space craft:
    
    http://satobs.org/seesat/Sep-2009/0263.html
    
    Here are elements:
    
    STSS Demo 1                                            1332 X 1353 km
    1 35937U 09052A   09271.78648550  .00000000  00000-0  00000-0 0    08
    2 35937  57.9926  82.1220 0013272 323.4225  36.5809 12.79632862    05
    Arc 20090928.75-0928.84 WRMS resid 0.013 totl 0.008 xtrk
    
    STSS Demo 2                                            1337 X 1352 km
    1 35938U 09052B   09271.78796842  .00000000  00000-0  00000-0 0    07
    2 35938  57.9917  82.1302 0009697 307.5736  52.4323 12.79040547    04
    Arc 20090927.74-0928.84 WRMS resid 0.020 totl 0.010 xtrk
    
    The arc of 09052A is just one rev, so the derived elements are likely to change
    slightly, with additional observations.
    
    We cannot be certain that the above designations correspond to the official
    ones, and they are subject to change as we learn more.
    
    The payloads are box-like, with dimensions 2.26 m x 1.5 m x 1.75 m. They have a
    solar array, with a span of 12.3 m. Mass of each is 1,023 kg. Estimated standard
    visual magnitude is about 7 (1000 km, 90 deg phase angle), which is roughly
    consistent with Greg's observations.
    
    Ted Molczan
    
    -------------------------------------------------------------------------
    Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive:  
    http://www.satobs.org/seesat/seesatindex.html
    



    This archive was generated by hypermail 2b29 : Tue Sep 29 2009 - 14:41:14 UTC