RE: SATOBS 2009 January 31

From: Ted Molczan (ssl3molcz@rogers.com)
Date: Sun Feb 01 2009 - 09:52:24 UTC

  • Next message: Tony Beresford: "satobs 8597 feb 01"

    Peter Wakelin wrote:
    
    > 09-526A is the new object I first observed on January 26.
    > It was very close to the position predicted by Ted's search
    > elset with N = 2.006.  It is possible that it has done 11
    > rather than 10 orbits in the 5 days since last observed
    > but I get a less good fit with a mean motion near 2.2066.
    > Cloud terminated last night's observing earlier than I had
    > hoped but further obs will resolve the issue.
    
    Congratulations on recovering the object, Peter. With your new observations, I
    am confident that ~2.006 rev/d is correct; here are updated elements:
    
    1 91200U 09526A   09031.64133475  .00000000  00000-0  00000-0 0    03
    2 91200  64.0002 337.6226 7174258 278.7239  12.9080  2.00612450    07
    Arc 2009 Jan 26.77 - 31.89, WRMS residuals = 0.006 deg
    
    This appears not to be the Molniya orbit object you observed on 2008 Apr 23;
    their planes differ by about 21 deg, and a mean motion near 2.18 rev/d seems
    more realistic for the Apr 23 object.
    
    Ted Molczan
    
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