Description
The International Astronomical Union's SOFA service has the task of establishing and maintaining an accessible and authoritative set of algorithms and procedures that implement standard models used in fundamental astronomy. The service is managed by an international panel, the SOFA Board, appointed through IAU Division A - Fundamental Astronomy. SOFA also works closely with the International Earth Rotation and Reference Systems Service (IERS).
September 2025 update: Please note that the SOFA website is temporarily unavailable due to potential security concerns faced by the host institution. We are currently looking into the possibility of hosting the website elsewhere; in the meantime, information can be obtained by contacting the SOFA board at the following email address: [email protected]. We apologize for any inconvenience this might cause.