KF Obs - 2006 May 01 UTC

From: Ted Molczan (seesat@rogers.com)
Date: Mon May 01 2006 - 07:14:11 EDT

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    I enjoyed Kevin Fetter's lunar transit videos, and the ability to make flash and
    positional observations from his NOSS 3-3 r video:
    
    http://satobs.org/seesat/May-2006/0000.html
    
    28538 05 004B   1775 G 20060501070944943 56 25 1843408+384860 37 R        005300
    28538 05 004B   1775 G 20060501070950815 56 25 1846489+364686 67 R        005300
    
    Site 1775: 44.6062 N  75.6910 W  100 m
    
    Thanks to algorithms provided by Scott Campbell last year, ObsReduce 1.3
    supports position reductions from images. For example, for the first of the
    above positions, I advanced the video until the satellite was surrounded by
    three stars, which I designated in ObsReduce as A, B and C, then used a ruler to
    measure the length of four line segments required by the algorithm. Three of the
    segments are measured from the stars to the satellite, denoted as S. The details
    are recorded in the observation log, as appended. 
    
    The algorithm also works with two stars, and accepts pixel coordinates as an
    alternative to line segments.
    
    ObsReduce is available here:
    
    http://www.satobs.org/programs/ObsReduce/ObsReduce.html
    
    Ted Molczan
    
    
    2006 May 01  07:09:44.943 UTC   05004B    28538
    
    Star A: 18:43:16.5708  +39:18:00.225  (2000.0) Mag 6.637
    Star B: 18:44:05.1450  +38:31:59.100  (2000.0) Mag 6.754
    Star C: 18:40:12.1970  +38:22:01.888  (2000.0) Mag 6.517
    
    Length AB =  2.9800
    Length AS =  1.9000
    Length BS =  1.2000
    Length CS =  2.9500
    
    Object: 18:43:24.4848  +38:48:36.147  (2000.0)  +/- 0.005 deg (default)
    
    Obs - Pred: 0.006 deg X-track; 0.047 s early, relative 9.41 day old elset:
    
    1 28538U 05004B   06111.88862456 0.00000050  00000-0  84947-4 0    05
    2 28538  63.8261 127.6526 0104000 136.2492 223.7508 13.42864127    00
    
    28538 05 004B   1775 G 20060501070944943 56 25 1843408+384860 37 R        005300
    
    
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