RE: 00-653 A

Date: Fri Jun 23 2000 - 06:41:42 PDT

  • Next message: Tony Beresford: "june 23 observations"

    Yes, I noticed something "funny" going on as well.  I was ready for the
    flashes this time, despite swatting 'skeeters and occasional cirrus clouds.
    I was trying to time the first few flashes, keying on the brighter flash as
    the "primary".  However, after a couple of cycles I kept getting 23 second
    intervals between the "primary" and "secondary".  Then in a clear patch of
    sky I was able to see the "sparkles" before and after the brighter flash.
    As Don mentioned, around 03:01 the brightness shifted to the "classic"
    By 03:07 both flashes started to fade and the primary flash began to
    increase in duration.  It also seemed to have a "double peak" for several
    cycles, and its duration crept up to about a second.  The "sparkles" before
    the secondary flash seemed to remain at about the same brightness until the
    secondary disappeared altogether by about 03:13.  I lost track of all traces
    of the satellite by 03:16.
    I plan to head out to my dark sky site tonight with my 14.5-inch 'scope.
    Hopefully I'll be able to see the satellite before the flashes start and
    monitor its brightness changes from beginning to end...
    Geoff Chester
    USNO Public Affairs Office 
    > -----Original Message-----
    > From: []
    > Sent: Friday, June 23, 2000 00:08
    > To:;
    > Cc:;; 
    > Subject: 00-653 A
    > 00-653 A 00-06-23 03:09:23.2 JDG 954.2 0.3  39 24.47  +2.0->inv
    > Interesting obs.
    > In the beginning of the flash series (02:53:29 UTC; 23 June) 
    > the flash after 
    > the 23.xx second period was brighter.  The brightness shifted 
    > to the flash 
    > after the 25.xx second flash at 03:01 UTC.   As that bright 
    > flash began to 
    > fade, it seemed to have a more complex pattern. 
    > Cheers
    > Don Gardner  39.1799 N, 76.8406 W, 100m ASL
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