Iridium 33 & K2251 wreckages observed

From: Marco Langbroek (
Date: Wed Mar 11 2009 - 20:32:55 UTC

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    Hi all,
    I just visually observed the main wrecks of both Iridium 33 and Kosmos 2251 with 
    the ETX-70 (7 cm F5 refractor).
    The Iridium 33 wreckage (24946, 97-051C) was easy to see and notably irregular 
    in brightness, with many short flashes (several per second, with a brighter one 
    approximately each second. This is an estimate: I did not time them). I observed 
    it as it passed close to Pollux near 19:55:10 UTC (11 March). At its brightest 
    it might have been +6. I did not observe the kind of bright flares as reporetd 
    by Simone yesterday.
    The Kosmos 2251 wreckage (22675, 93-036A) was much fainter, about +8 at its 
    brightest as it passed close to alpha Uma at 20:11:30 UTC. It too was irregular, 
    but its brightness variation seemed slightly slower than that of the Iridium 33 
    - Marco
    Dr Marco Langbroek  -  SatTrackCam Leiden, the Netherlands.
    Cospar 4353 (Leiden):   52.15412 N, 4.49081 E (WGS84), +0 m ASL
    Cospar 4354 (De Wilck): 52.11685 N, 4.56016 E (WGS84), -2 m ASL
    Station (b)log:
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