Lacrosse 5 post-manoeuvre elements

From: Ted Molczan (seesat@rogers.com)
Date: Fri Oct 21 2005 - 14:24:25 EDT

  • Next message: Ted Molczan: "Lacrosse 5: analysis of brightness"

    Sometime between 2005 Oct 13.82 and Oct 15.81 UTC, Lacrosse 5 made a small
    manoeuvre which slightly increased its altitude and eccentricity, and apparently
    moved its argument of perigee. Probably, this is part of the process of nudging
    the spacecraft into a frozen orbit, like those of past Lacrosses. 
    
    The 57 deg inclination Lacrosse frozen orbit results in argument of perigee
    nearly fixed at 90 deg. The 68 deg Lacrosses have a 270 deg argument of perigee.
    
    Lacrosse 5       0.0  0.0  0.0  2.9 v
    1 28646U 05016A   05293.74569522  .00000042  00000-0  10000-4 0    01
    2 28646  57.0110 202.6104 0015055  51.4623 308.7737 14.53346812    06
    Arc 2005 Oct 15.81 - 20.76, WRMS residuals = 0.019 deg
    
    Ted Molczan
    
    
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