From: Daniel Deak (
Date: Mon Sep 14 2009 - 03:09:16 UTC

  • Next message: Steve Newcomb: "8539 obs Sept 14"

    Hi Marco and list,
    This spacecraft seems to produce short flares at least once at almost every
    pass. I saw one myself on Sept. 13 at about 00:02:10 UTC that lasted about 2
    seconds with a magnitude of -2 to -3 and someone on my Obsat list
    photographed one on Sept. 11 :
    We see the short flare on the otherwise faint horizontal trail on that
    I don't know if the spacecraft is in a barbecue mode or is in a stable mode.
    If it is stable, these flares must come from a reflective flat surface or
    something similar and should be predictable.
    Daniel Deak
    Webmestre, site Obsat
    COSPAR site 1748 : 45.8813°N, 72.5317°W, 90 m., UTC-5:00
    Site en francais sur les satellites:
    French-language satellite web site :
    -----Message d'origine-----
    De : Marco Langbroek [] 
    Envoyé : 13 septembre 2009 15:37
    À : satelliet lijst (SeeSat)
    Objet : HTV-1
    Hi all,
    Just saw a nice pass of the HTV-1 again, mag. ~0. It flared once, at about
    19:28:35 UTC, to mag. -2.
    Had bad luck with the pictures though: flare happened inbetween two
    exposures, and the images turned out a tad unsharp (was using another lens
    than usual to get a wider FOV because of the fast movement of the HTV).
    - Marco
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