Skip to content

SOFA: Standards of Fundamental Astronomy

Authors

IAU SOFA Center
Software

Abstract

SOFA (Standards Of Fundamental Astronomy) is a collection of subprograms, in source-code form, that implement official IAU algorithms for fundamental astronomy computations. SOFA offers more than 160 routines for fundamental astronomy, including time scales (including dealing with leap seconds), Earth rotation, sidereal time, precession, nutation, polar motion, astrometry and transforms between various reference systems (e.g. BCRS, ICRS, GCRS, CIRS, TIRS, ITRS). The subprograms are supported by 55 vector/matrix routines, and are available in both Fortran77 and C implementations.

Details

© The SAO Astrophysics Data System

help[at]scixplorer.org

SciX is a project created by the Astrophysics Data System (ADS), which is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative Agreement 80NSSC21M0056.

Version: v0.26.0

Smithsonian InstitutionCenter for AstrophysicsNASA

*The material contained in this document is based upon work supported by a National Aeronautics and Space Administration (NASA) grant or cooperative agreement. Any opinions, findings, conclusions or recommendations expressed in this material are those of the author and do not necessarily reflect the views of NASA.

RESOURCES

About SciXGive FeedbackSciX HelpSystem StatusCareers@SciXAccessibility Conformance ReportWeb Accessibility PolicyNASA Science Discovery Engine

SOCIAL

@scixcommunitySciX Blog

PROJECT

Privacy PolicyTerms of UseSmithsonian Astrophysical ObservatorySmithsonian InstitutionNASA