Re: Dove-1 (39144) reentry imminent

From: Mal Ninnes (
Date: Sat Apr 27 2013 - 04:11:10 UTC

  • Next message: Russell Eberst: "2013APR26.OBS"

    Thanks for the heads up, Henry. With the current TLE's, I have some passes around sunset and shortly after (Sydney, Australia). Will keep my eye on SpaceTrack for prediction changes too.
    ----- Original Message -----
      From:"Henry Hallam" 
     To:"satelliet lijst (SeeSat)" 
     Sent:Fri, 26 Apr 2013 16:26:19 -0700
     Subject:Dove-1 (39144) reentry imminent
    Dear skywatchers,
    Object 39144 is Cosmogia's Dove-1 nanosatellite. (It is currently
    misidentified on Space-track as Alexander, but 39144 is definitely
    Dove-1). Space track is predicting reentry for 2013-04-27 14:36:00
    but due to commanded attitude changes we believe it will decay before
    then. It should produce a nice fireball somewhere!
    Here is an alternate TLE to the space-track one - being so low, we're
    not sure which is more accurate at this point:
    1 00001U 13116.83333333 .07659300 00000-0 11402-2 0 00005
    2 00001 051.6165 283.3296 0010633 313.3498 277.5486 16.33385748000056
    This was produced from our radio observations.
    We're refining our reentry predictions and will post a time and ground
    track when we have a good idea.
    If you happen to observe the reentry, please let us know!
    Henry Hallam
    Dove-1 operations team
    Cosmogia, inc.
    San Francisco, CA, U.S.A.
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