Re: fast, bright unid coincident with HST

From: Gerhard HOLTKAMP (
Date: Mon Jul 11 2005 - 15:24:12 EDT

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    Brad Young wrote:
    >Just as a note, we in Tulsa saw a double HST flare both Fri and Sat nights
    >at the "9:25 ish" pass. But nothing last night, not even a good view of HST
    >at 3rd magnitude. Did you see HST and the UNID? or was it a second flare of
    >HST? I know I was pleasently surprised when I figured out it was the same
    >I suggested to the Astronomy Club of Tulsa gathering that both nights the
    >first (and brighter, -2 mag) flare seemed to be right when HST was due south
    >of Comet Tempel, almost as if it was "looking at it". I think I saw some
    >mention of this earlier on this list - coincidence?
    If the flares were to be caused by the Aft Skirt (bottom) of the HST then the 
    HST would not have pointed at Comet Tempel 1 at the time as the target 
    declination necessary for such a flare would have been between -28 and -34 
    (depending on when exactly the flare occurred).
    I've checked the HST timeline for this week. For those targets that I could 
    figure out their coordinates I checked whether the respective pointings would 
    result in Aft Skirt flares. I came up empty handed most of the time. The few 
    flares I found were all under marginal conditions or in areas where I would 
    not expect SeeSatL presence (like Southern Sudan). Observers in the US I can 
    offer a daytime flare on July 16 at 22:56:45 UTC well to the North of 
    Galveston, TX (at lat.28.17, long -96.95) or 3:15 minutes later at the 
    Southern tip of Florida at (25.15, -80.57) while the HST is scheduled to 
    look at Comet Tempel 1 again. I don't know whether anyone is even remotely 
    interested in trying to look for it. 
    Gerhard HOLTKAMP
    Darmstadt, Germany
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