Re: a general decrease in the numbers of TLEs since November?

From: Dirk Devlies (dirk.devlies@telenet.be)
Date: Tue Jan 06 2009 - 21:22:36 UTC

  • Next message: Daniel Deak: "RE: a general decrease in the numbers of TLEs since November?"

    Hi all
    
    A 40 percent decrease is not what I noticed. After I downloaded tle's for 
    (and with) Heavensat from the three available sources (space-track, 
    celestrack and mccants) on january 2nd, I had 15858 objects. I downloaded 
    again just now and have 15864 objects. I think that maybe I had in the range 
    of 16000 objects before, but certainly no more than around 16500 objects. 
    Coming 40 percent down from that figure would bring me to some 9900 objects 
    and that is not the case.
    
    Kind greetings
    
    Dirk
    
    ----- Original Message ----- 
    From: "Geoffrey E Forden" <forden@MIT.EDU>
    To: <seesat-l@satobs.org>
    Sent: Tuesday, January 06, 2009 8:35 PM
    Subject: a general decrease in the numbers of TLEs since November?
    
    
    > An analyst I respect a lot has told me that the number of cataloged TLEs 
    > posted
    > by space-track has decreased by 40% since November (since roughly when 
    > those
    > six satellites, including the CLUSTER II satellites, were lost).  I'm only 
    > able
    > to check a few satellites at a time and was wondering if anyone had also 
    > noticed
    > this? Thanks!
    >
    >
    >
    > Geoffrey Forden, Ph.D
    >
    > Research Associate
    >
    > MIT's Program on Science, Technology, and Society
    >
    >
    >
    > MIT, E51-163
    >
    > 77 Massachusetts Ave.
    >
    > Cambridge, MA
    >
    > 02139-4307
    >
    >
    >
    > Phone: 617-452-4097
    >
    > Fax: 617-258-5750
    >
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