Re: Gorizont 23 -- easy with 10x50s

From: Björn Gimle (b_gimle@algonet.se)
Date: Mon Aug 26 2002 - 17:36:29 EDT

  • Next message: Jonathan T Wojack: "Re: Optical Instruments"

    I haven't found any TDF-1 data (yet?), but I tediously dug out the following
    approximate observations of Gorizont 23 out of my mail boxes:
                            Flash RA        Dec
    
    2002-03-13 05:00        Ed0313  13:46   0.5
    2002-03-13 05:19        Ed0313  14:04   -0.4
    2002-03-13 06:39        Ed0313  15:24   -2.55
    2002-08-26 04:11        PG0826  16:41   -6.3
    2002-08-17 04:31        Ed0817  19:47   -11.5
    2002-08-17 05:36        Ed0817  22:50   -12.25
    2002-08-26 04:11        PG0826  16:41   -6.3
    2002-08-26 04:11        PG0826  17:09   -7.2
    2002-08-24 04:40        PG0824  18:03   -8.75
    2002-08-24 05:00        PG0824  18:23   -9.25
    2002-08-24 05:10        Ed0824  18:15   -9.6
    2002-08-23 04:49        PG0823  18:12   -9
    2002-08-08 04:44        Ed0808  22:44   -12.05
    2002-08-08 05:12        Ed0808  23:11   -11.95
    2002-08-21 04:49        JH0821  19:03   -11.4
    
    With such long observation periods, I didn't expect very useful solutions, but
    it doesn't look so bad.
    
    Axis at 22:50, +79.7, cone angle 86.0 (and 86.9 for the late sessions)
    
    For 2002-08-28, at San Antonio at UTC 09:30, just before shadow entry, flashes
    should be getting brighter, and after leaving eclipse at 10:40 they would
    decrease, but from a second episode (back side of computed surface)
    For Jason Hatton, 08:50 to 09:10
    For Ed Cannon, first flash event should be around 03:45, second 04:10 ??
    Rob Matson could have the first event 04:00
    PG8305 04:15
    
    I am puzzled by the large differences, but too tired to check them out.
    
    >
    > >For anyone interested in seeing a flashing geosynch, Gorizont
    > >23 has been easy to observe with 10x50 binoculars the last few
    > >evenings
    >
    
    
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