Re: Gorizont 14

From: Ed Cannon (
Date: Sun Jan 30 2000 - 19:41:13 PST

  • Next message: Tony Beresford: "Re: obs of jan 30"

    Jason P Hatton ( wrote:
    ] Stephen D LaLumondiere wrote:
    ]> I spotted Gorizont 14 (1987-040A, #17969) around 03:50 UTC 
    ]> (2000-01-27).  
    ]> I timed the flash period to be about 85.1 seconds.
    ] my flash period timings were around half of your period
    ] Alternate flashes are often at least a couple of magnitudes 
    ] fainter than the primary flashes, so it would seem that the 
    ] zone of visibility for "even" & "odd" flashes are different. 
    ] It may be interesting to try observing this satellite at 
    ] different times of the night to see if the visibility of 
    ] flashes (brightness & prescence / abscenc of alternate
    ] flashes) varies.
    A week ago Mike McCants and I observed Gorizont 14, and using
    Mike's 8-inch telescope I got half-period times during an 
    observing session of 03:30:37 to 03:52:36, 24 January UTC.  
    The secondary maxima were fainter.
    Then last night and this morning off and on over about six 
    hours, 3:44:33 to 9:43:21 Jan 30 UTC, I observed it several 
    times using binoculars.  During the last sub-session only, 
    beginning at 9:30:31 (3:30 a.m. local time), I saw a few 
    secondary or half-period flashes.  A few of these flashes 
    (primary and secondary) were bright enough that I thought 
    that if I'd been at a good site, they might have been visible 
    at one-power.
    Ed Cannon - - Austin, Texas, USA
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