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 (UTC - Coordinated Universal 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". The function delta_t() returns the value of delta-T in units of seconds.

Version:	2.0.2
Imports:	graphics, png
Published:	2025-09-11
DOI:	10.32614/CRAN.package.galisats
Author:	Lech Jaszowski [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_2.0.2.tar.gz
Windows binaries:	r-devel: galisats_1.0.1.zip, r-release: galisats_2.0.2.zip, r-oldrel: galisats_2.0.2.zip
macOS binaries:	r-release (arm64): galisats_2.0.2.tgz, r-oldrel (arm64): galisats_2.0.2.tgz, r-release (x86_64): galisats_2.0.2.tgz, r-oldrel (x86_64): galisats_2.0.2.tgz
Old sources:	galisats archive

Linking:

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