IGS 1A and IB elements

From: Ted Molczan (molczan@rogers.com)
Date: Wed Apr 30 2003 - 10:22:34 EDT

  • Next message: Harro Zimmer: "BeppoSax decayed - A post mortem Analysis"

    I derived the following from observations by Daniel Deak, Russell Eberst,
    Alberto Rango and Mike Waterman, received to this moment:
    
    Arc 2003 Apr 28 - 29 UTC:
    
    IGS 1A           0.0  0.0  0.0  5.7 v
    1 27698U 03009A   03119.89057557  .00010000  00000-0  39035-3 0    01
    2 27698  97.4024 191.8946 0001808 169.5551 190.5725 15.25946589    00
    
    WRMS residuals = 0.007 deg
    
    Arc 2003 Apr 29 - 30 UTC:
    
    IGS 1B           0.0  0.0  0.0  3.2 v
    1 27699U 03009B   03120.06136549  .00010000  00000-0  39063-3 0    03
    2 27699  97.4104 191.9754 0004739 145.8241 214.3304 15.25913313    04
    
    WRMS residuals = 0.035 deg
    
    I no longer believe that my epoch 3117.85770393 elset of IGS 1A is reliable.
    
    IGS 1B has manoeuvred lower, to more nearly match the mean motion of IGS 1A.
    Their orbital periods now differ by about 0.12 s, with IGS 1B leading 1A by
    37.3 min.
    
    I have revised the standard magnitude of both satellites, using all of Russell
    Eberst's observations through April 30.
    
    Ted Molczan
    
    
    -----------------------------------------------------------------
    To unsubscribe from SeeSat-L, send a message with 'unsubscribe'
    in the SUBJECT to SeeSat-L-request@satobs.org
    List archived at http://www.satobs.org/seesat/seesatindex.html
    



    This archive was generated by hypermail 2b29 : Wed Apr 30 2003 - 11:28:02 EDT