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    Re: Time and Longitude by Jupiter's moons
    From: Robert H. van Gent
    Date: 2024 Dec 11, 09:10 -0800

    Hi,

    The IMCCE website has two webpages
      https://ssp.imcce.fr/forms/relative-positions
    and
      https://ssp.imcce.fr/forms/satellites-events

    which compute the relative positions and phenomena (transits, eclipses, etc.) of the main satellites of Jupiter, Saturn & Uranus according to their own ephemerides (IMCCE/SAI) and those of JPL within the following time spans:

    • Jupiter: 02/01/1650 to 30/12/2049,
    • Saturn: 01/01/1870 to 20/10/2052,
    • 01/01/1847 to 01/01/2142. 

    Note that Observatory Code = 500 corresponds with geocentric.
      https://en.wikipedia.org/wiki/List_of_observatory_codes

    Rob van Gent

     

       
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