Lacrosse 4 observed Flaring, & Lacrosse 5 "disappearance trick"

From: Marco Langbroek (
Date: Sat Jan 20 2007 - 14:43:57 EST

  • Next message: Bruce MacDonald: "Re: Lacrosse 4 observed Flaring, & Lacrosse 5 "disappearance trick""

    hi all,
    This evening was very clear (and a bit windy). I observed a fine flare from 
    Lacrosse 4 (00-047A). Just before going into eclips in Taurus, it briefly flared 
    to mag. +0.5 at about 18:53:00 +/- 1s UTC. The flare took only a few seconds. My 
    camera opened almost at the peak of it: the image can be seen at:
    Some 20 minutes earlier, I observed Lacrosse 5 (05-016A) doing its notorious 
    "disappearance trick" again in Umi. It happened at 18:31:27 +/- 2 s UTC, some 
    1.5 minutes before eclipse entry. The camera was open while it happened, image 
    at the same URL above. Before that, Lacrosse 5 was about mag. +1.5.
    Positions will follow later, after I have measured the images.
    - Marco
    Dr Marco Langbroek  -  SatTrackCam Leiden, Cospar 4353
    Leiden, the Netherlands. 52.15412 N,  4.49081 E (WGS84), +0 m ASL
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