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Astronomy Library - Astrometry
This is the index page for the Astrometry section of the Astronomy Library for SOFA Library Issue 2020-07-21 for ANSI C. The Astrometry section includes the following routines:
| Ab | — | Apply stellar aberration |
| Apcg | — | Prepare for ICRS <-> GCRS, geocentric, special |
| Apcg13 | — | Prepare for ICRS <-> GCRS, geocentric |
| Apci | — | Prepare for ICRS <-> CIRS, terrestrial, special |
| Apci13 | — | Prepare for ICRS <-> CIRS, terrestrial |
| Apco | — | Prepare for ICRS <-> observed, terrestrial, special |
| Apco13 | — | Prepare for ICRS <-> observed, terrestrial |
| Apcs | — | Prepare for ICRS <-> CIRS, space, special |
| Apcs13 | — | Prepare for ICRS <-> CIRS, space |
| Aper | — | Insert ERA into context |
| Aper13 | — | Update context for Earth rotation |
| Apio | — | Prepare for CIRS <-> observed, terrestrial, special |
| Apio13 | — | Prepare for CIRS <-> observed, terrestrial |
| Atci13 | — | Catalog -> CIRS |
| Atciq | — | Quick ICRS -> CIRS |
| Atciqn | — | Quick ICRS -> CIRS, multiple deflections |
| Atciqz | — | Quick astrometric ICRS -> CIRS |
| Atco13 | — | ICRS -> observed |
| Atic13 | — | CIRS -> ICRS |
| Aticq | — | Quick CIRS -> ICRS |
| Aticqn | — | Quick CIRS -> ICRS, multiple deflections |
| Atio13 | — | CIRS -> observed |
| Atioq | — | Quick CIRS -> observed |
| Atoc13 | — | Observed -> astrometric ICRS |
| Atoi13 | — | Observed -> CIRS |
| Atoiq | — | Quick observed -> CIRS |
| Ld | — | Light deflection by a single solar-system body |
| Ldn | — | Light deflection by multiple solar-system bodies |
| Ldsun | — | Light deflection by the Sun |
| Pmpx | — | Apply proper motion and parallax |
| Pmsafe | — | Apply proper motion, with zero-parallax precautions |
| Pvstar | — | Star position+velocity vector to catalog coordinates |
| Pvtob | — | Observatory position and velocity |
| Refco | — | Refraction constants | Starpm | — | Proper motion between two epochs |
| Starpv | — | Star catalog coordinates to position+velocity vector |