Re: I saw ISS :-)

From: Björn Gimle (b_gimle@algonet.se)
Date: Tue Apr 15 2003 - 05:29:33 EDT

  • Next message: Jonathan McDowell: "What is 27732?"

    With SkyMap's lunar algorithm and the elset below
    ISS transit 2003-04-14
    01:56:56.70 - 57.47 = 0.77 s
    for 30.307N, 97.727W, 150m
    
    ----- Original Message -----
    > Thomas Fly wrote:
    >
    > >Ed Cannon wrote:
    > >
    > >> I got the binoculars on it and attempted to click the beginning and
    end of
    > >> the transit and got these times, plus or minus about 0.05 using WWV:
    > >>
    > >>  1:56:56.70 April 14 - begin transit
    > >>  1:56:57.56 - end transit
    > >
    Mike wrote:
    >
    > I ran an old version of "ephem" for this lat/long/time and got:
    >
    > Moon coordinates 11 Hr 13.9 Mn, 10.38 deg Dec (2000)
    >                  Alt 51.13, Azi 113.83
    >
    > I ran my version of SeeSat 4.0 with the tles:
    >
    > 1 25544U 98067A   03104.44047454  .00016643  00000-0  22273-3 0  8910
    > 2 25544  51.6348 340.4225 0006548  20.6391 337.4675 15.58129290251053
    >
    > The alt/azi matches at 1:56:57.0, but the RA and Dec interpolated
    > to 1:56:56.3 are 11 Hr 14.7, 10.47.  That would imply a pass that
    > is just grazing the moon.
    >
    > >It seems like .86 seconds is a bit too long, though.
    >
    > RMS = 0.70 degrees / second.  Transit time for 0.5 degrees is 0.71
    seconds.
    >
    
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