Re: Updated X-37B OTV 1-1 elements

From: Robert Holdsworth (robbonz1@xtra.co.nz)
Date: Fri Nov 26 2010 - 08:53:59 UTC

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    Finally got to observe this a few minutes ago on a nice 65 degrees elevation 
    pass with only a small amount of cloud about.
    
    In view of my latitude this is of considerable interest to me!
    
    Not  able to make precise positional observations but it was a reasonably 
    steady mag 1, did not appear to reach anywhere near the -2.6 predicted by 
    Orbitron.
    
    I estimate culmination at 08:32:01 UTC, my timer was precise (handheld GPS) 
    but my observation may not be.  So latest TLE is definitely close to the 
    mark, not likely to be more than 15 seconds out.
    
    Correct me if I am wrong but with a 39 degree inclination, and the fact that 
    the shuttle passes over here when it heads for California, it seems to me 
    possible that the deorbit burn of 36514 could take place near here? (whether 
    or not it will happen when visible of course is another story!)
    
    Robert Holdsworth
    Wainuiomata
    New Zealand
    174.948E
    41.261S
    NZDT=UTC+13.
    
    
    
    
    
    
    
    ----- Original Message ----- 
    From: "Ted Molczan" <ssl3molcz@rogers.com>
    To: <seesat-l@satobs.org>
    Sent: Friday, November 26, 2010 2:53 AM
    Subject: Updated X-37B OTV 1-1 elements
    
    
    > Greg Roberts made additional precise observations of OTV 1-1 on 2010 Nov 
    > 24, at 18:59 UTC. It was
    > ~23 s late relative my estimated elements, which revealed that the orbit 
    > is about 1 km higher than
    > the estimate. Here are revised and updated elements:
    >
    > X-37B OTV 1-1                                            281 X 292 km
    > 1 36514U 10015A   10328.74435517  .00024541  00000-0  55503-4 0    07
    > 2 36514  39.9869 104.9251 0007954 340.2040  19.8477 15.96461251    01
    > Arc 20101123.79-1124.79 WRMS resid 0.041 totl 0.034 xtrk
    >
    > The mean motion and rate of decay remain a bit uncertain, but predictions 
    > should be accurate to
    > within a few seconds per day since epoch.
    >
    > 
    
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