Re: Geodetic precision

From: Kevin Fetter (
Date: Wed Aug 22 2001 - 05:37:32 PDT

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    Since mike is an expert in sat tracking, he knows what he's talking about. 
    Thought I am not to happy about some of his comments. I wish thank Dr 
    TSKelso since without his SGP4/SDP4 code observing sats would be very 
    difficult as it is used in our tracking programs and I believe to generate 
    an orbit using mikes fitelem and other simular programs.
    I have tried to make positional onservations and also take observations and 
    use his program to improve an orbit, I fail. I leave it to others to do the 
    work, its way to difficult for me. Thanks to mike, ted and others for the 
    work you do in generating orbits for classified objects.
    While what the datum and position is not important in sat observing, its 
    very important for other things such as lunar occultations. For lunar 
    occultations they need to know what datum you used and your position should 
    be accurate to 15 meters in order for your observations to be useful. And 
    even a 100 meters difference in positions does make a difference in lunar 
    Now its time to end the tak about datums and geodetic position and talk 
    about visual sat observing. And lets stick to that please.
    Thank You.
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    This archive was generated by hypermail 2b29 : Wed Aug 22 2001 - 05:38:16 PDT