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  Astronomy Library - Astrometry

This is the index page for the Astrometry section of the Astronomy Library for SOFA Library Issue 2021-05-12 for Fortran 77. 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
ATCC13 J2000.0 catalog ICRS -> astrometric ICRS
ATCCQ Astrometric ICRS -> J2000.0 catalog ICRS
ATCI13 Catalog -> CIRS
ATCIQN Quick ICRS -> CIRS, multiple deflections
ATCIQZ Quick astrometric ICRS -> CIRS
ATCO13 ICRS -> observed
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
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Last modified: 2021 May 10