RE: STSS-r Position Details

From: Derek C Breit (breit_ideas@poyntsource.com)
Date: Sun Feb 14 2010 - 03:58:13 UTC

  • Next message: Ted Molczan: "Updated 09052C elements"

    Observed from
    Lat = 37.114763, Lon = -121.699082
    Elevation 625 ft..
    
    This is maybe 250 yards north of my homesite of COSPAR 8739 at 
    Lat 37.113283 Lon -121.702767  Elevation 282m
    
    
    I have no idea if this makes a difference for satellites, but I assume it
    does (as it would for lunar occultations)...
    
    This spot will be used again tomorrow night (and any time I need to see low
    to the North..)
    
    Derek
    
    PS.. Sorry this is so convoluted.. I just wanted to pass on all the details
    I know and let y'all figure it out!
    
    :-))
    
    PSS.. How could I go about finding one of my older observations off of this
    list so I can use it as a template.. I used to do this, but my last computer
    crashed and that template is no more..
    
    
    
    
    -----Original Message-----
    From: Derek C Breit [mailto:breit_ideas@poyntsource.com] 
    Sent: Saturday, February 13, 2010 7:43 PM
    To: SeeSat-L
    Subject: STSS-r Timing
    
    
    
    
    35939 09 052C   8739 G 20100214030637000 57 25 1639472+631150 39  
    
    
    
    2010 Feb 14  03:06:37.0 UTC   09052C    35939  SGP4
    
    Star A: 16:47:15.8542  +63:31:53.438  (2000.0) Mag 6.977
    Star B: 16:36:54.9926  +63:04:22.180  (2000.0) Mag 6.336
    
    Object on line AB, 0.750000 from A to B;  Star Sep = 1.249 deg
    
    Object: 16:39:28.3189  +63:11:30.239  (2000.0)  +/-  0.5000 deg (per
    observer)
    
    Obs - Pred: 0.157 deg X-track; 46.209 s early, relative 1.41 day old elset:
    
    1 35939U 09052C   10043.72050712 0.02340000  00000-0  10415-2 0    02
    2 35939  59.6184 295.9092 0244641   4.4629 355.5371 15.80287008    04
    
    35939 09 052C   8739 G 20100214030637000 57 25 1639472+631150 39  
    
    
    
    
    NOTES - 
    This is a visual observation with 15 x 70 binoculars (I don't believe I have
    observed this way before!)
    
    Elset is from Mike McCants...
    
    I used Heavensat to pickout the two stars.. 11 degrees elevation under the
    North Star. I saw it approach the 2 stars and was counting seconds from
    WWV.. Time "on the line" between the stars is probably good to 1/10 second..
    Fraction between the stars is probably more accurate than reported too, but
    I am conservative by nature..
    
    Hope this is useful! I saw it finally!.. 
    
    Another visual point tomorrow, then a good 53 degree pass the next day that
    I will get at least one point on with the normal setup.. GPS Time Inserter..
    
    Derek - 8739 - Morgan Hill, CA
    
    IMPORTANT - See next message for observing position, as I was not in my
    usual spot!
    
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