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Sofa
Jul 20, 2023
Set of algorithms and procedures used in fundamental astronomy
The SOFA Collection consists of libraries of routines in ANSI C. There is a suite of vector/matrix routines and various utilities that underpin the astronomy algorithms, which include routines for the following
- Astrometry
- Calendars
- Time Scales
- Ecliptic Coordinates
- Earth Rotation and Sidereal Time
- Ephemerides medium precision
- Fundamental Arguments
- Galactic Coordinates
- Geocentric/Geodetic Transformations
- Precession, Nutation and Polar Motion
- Star Catalog Conversion
Checkout these related ports:
- Xworld - Earth as seen from the direction of the sun
- Xtide - Harmonic tide clock and tide predictor
- Xplanet - Draw pictures of the earth textured by an image
- Xphoon - Set the root window to the moon in its current phase
- Xmoontool - Version of John Walker's classical moontool for X11/Motif
- Xephem - Interactive astronomical ephemeris program
- Xeartk - Small demo for tkgeomap
- Xearth - Set the root window to the image of earth
- Wmsun - Dockapp that displays the rise and set times of the Sun
- Wmspaceweather - DockApp that shows the weather at geosynchronous orbit
- Wmsolar - Dockapp that displays the Solar System viewed from the top
- Wmmoonclock - Displays the phase of the moon, plus orbital data
- Wmjupiter - Dockapp that displays information on Jupiter
- Wmglobe - Neat xearth-like WindowMaker dockapp
- Weather - Utility to provide current weather conditions and forecasts