Re: How to see J002E3

From: Bjorn Gimle (b.gimle@chello.se)
Date: Mon Sep 30 2002 - 01:48:39 EDT

  • Next message: JAY RESPLER: "Re: ISS follower"

    > there one available? And what satellite program can handle plotting
    > something that faint? Thank you very much for any and all your help.
    
    > Bob, Bill Gray has an elset in TLE format of it on the site you referred
    to.
    > However I would suggest you calculate an ephemeris for your location
    > using the HORIZONS system at JPL. (
    http://ssd.jpl.nasa.gov/horizons.html )
    ...
    > CCD imaging.  After getting your ephemeris I would suggest plotting on
    charts
    > made using something like Guide or Skymap Pro charting /planetarium
    programs
    > rather than a satellite tracking program. Guide plots satellites but Bill
    Gray
    > put a lower limit of .05 revs/day on mean motion, so it will center on the
    location
    
    SkyMap by Rob Matson has constraints on magnitude, elevation, culmination,
    perigee and range (not MM). Magnitude limit can be set to 50! You can edit
    HORIZONS' latitude, longitude, range (above Earth's surface) into a "rocket
    trajectory" (.trj) file to avoid plotting manually, and produce many plots
    in different scale/center/coordinate grid/time tag spacing.
    
    Example:
      0 37.871 19.449   444440.000
     60 37.688 19.424   444444.190
     75 37.625 19.387   444477.811
     90 37.621 19.347   444517.001
    120 37.614 19.271   444689.050
    
    1st column is seconds from time chosen as mapping time, 2nd is lat, 3rd is
    long E, 4th. in km.
    
    
    
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