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galisats: Configuration of Jupiter's Four Largest Satellites

Calculate and plot the configuration of Jupiter's four largest satellites (known as Galilean satellites) for a given date and time (ET - Ephemeris Time). The 'galsat' function returns numerical values of the satellites’ positions. x – the apparent rectangular coordinate of the satellite with respect to the center of Jupiter’s disk in the equatorial plane in the units of Jupiter’s equatorial radius; X is positive toward the west, y – the apparent rectangular coordinate of the satellite with respect to the center of Jupiter’s disk from the equatorial plane in the units of Jupiter’s equatorial radius; Y is positive toward the north. For more details see Meeus (1988, ISBN 0-943396-22-0) "Astronomical Formulae for Calculators".

Version: 1.0.1
Imports: graphics, png
Published: 2025-07-21
DOI: 10.32614/CRAN.package.galisats
Author: Lech Jaszowski ORCID iD [aut, cre, cph]
Maintainer: Lech Jaszowski <lech.jaszowski at interia.pl>
License: MIT + file LICENSE
URL: https://lechjaszowski.github.io/galilean_satellites/
NeedsCompilation: no
Materials: README, NEWS
CRAN checks: galisats results

Documentation:

Reference manual: galisats.html , galisats.pdf

Downloads:

Package source: galisats_1.0.1.tar.gz
Windows binaries: r-devel: galisats_1.0.1.zip, r-release: galisats_1.0.1.zip, r-oldrel: galisats_1.0.1.zip
macOS binaries: r-release (arm64): galisats_1.0.1.tgz, r-oldrel (arm64): galisats_1.0.1.tgz, r-release (x86_64): galisats_1.0.1.tgz, r-oldrel (x86_64): galisats_1.0.1.tgz

Linking:

Please use the canonical form https://CRAN.R-project.org/package=galisats to link to this page.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
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