The ISS doesn appears at the correct position. Whats wrong?
The orbit of the ISS changes continuously in ways that are almost impossible to predict due to things like atmospheric drag, light pressure, cargo ship docking, etc. If you want an accurate orbit, you’ll have to update it on a daily basis. ISS TLEs (Two Line Elements) are posted to the AMSAT SAREX mailing list regularly by “Dave Larsen PhD”.
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