Re: ISS Transit prediction problems?

From: Kevin Fetter (
Date: Sun Aug 31 2003 - 01:48:10 EDT

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    --- Thomas Fly <> wrote:
    > Hi Willie,
    > Somebody else (from the UK) had a similar complaint- he was using "The Starry
    > Night Backyard."  
    There's one problem, starry night backyard doesn't use the norad sgp4/sdp4 orbital model. I had
    done checks using it, and notice the positions where off, so I fiqured they weren't using that
    model. I wrote to tech support, and they confirm my thoughts, it doesn't use the norad sgp4/sdp4
    orbital model. I was told it would in the future, I am still waiting. In the mean time I use guide
    8.0 , It gives better positions.
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