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skyfielders / python-skyfield

Elegant astronomy for Python
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Orbit generated from TLE is incorrect #892

Closed giapucd closed 10 months ago

giapucd commented 10 months ago

Hi,

I used two line elements (TLE) of the Gps satellites to create satellites and find their locations over time. What I expect is that a satellite rolates twice a day around the earth. However, the results say differently.

Thanks, GL

brandon-rhodes commented 10 months ago

We will need a bit more information to understand what you are seeing. Please provide an example satellite that you think should orbit the earth 2 times per day, and a short Python script that asks for the satellite's positions and shows that the number of rotations per day is either less than 2 or more than 2.

brandon-rhodes commented 10 months ago

Until this issue can be updated with more information, there's nothing the Skyfield contributors can do to address it, alas, so I am closing this issue. But please feel free to make further comments if you have more information you want to share later!