Changes for SOFA Issue: 2018-01-30

The changes fall into the following categories:

• Change in the copyright status of the DAT routine.
• Implementation of two new categories of routines, viz:
  • There are three routines for the horizon/equatorial plane coordinates.
  • There are six routines dealing with gnomonic (tangent plane) projections.
• Due to the introduction of these new routines, The Astrometry Tools Cookbook, the test program and other supporting files have also been updated.
• Other minor documentation/typographical corrections to various files.

 Changes to the SOFA FORTRAN Library

• iau_DAT.for — Code now classified as "user-replaceable support routine". Thus the terms and conditions at the end are also modified.
  sofa_ts_f.pdf — Updated Cookbook to include information about the change in status.
• iau_AE2HD — (azimuth, altitude) to (hour angle, declination)
  iau_HD2AE — (hour angle, declination) to (azimuth, altitude)
  iau_HD2PA — parallactic angle
• iau_TPORS — solve for tangent point, spherical
  iau_TPORV — solve for tangent point, vector
  iau_TPSTS — project tangent plane to celestial, spherical
  iau_TPSTV — project tangent plane to celestial, vector
  iau_TPXES — project celestial to tangent plane, spherical
  iau_TPXEV — project celestial to tangent plane, vector
• t_sofa_f.for — Validation program
  sofa_ast_f.pdf — Astrometry Tools Cookbook, with added information on the new routines
• board.lis, copyr.lis, intro.lis, sofa_lib.lis & title.lis — updated compononents of the manual.
• The following routines/files have had very minor documentation changes, mostly typographical:
  • iau_ATIOQ
  • iau_EECT00
  • iau_EQEQ94
  • iau_FK52H
  • iau_FK5HIP
  • iau_GMST82
  • iau_H2FK5
  • iau_PLAN94
  • sofa_pn_f.pdf

 Changes to the SOFA ANSI C Library

• iauDat.c — Code now classified as "user-replaceable support routine". Thus the terms and conditions at the end are also modified.
  sofa_ts_c.pdf — Updated Cookbook to include information about the change in status.
• iauAe2hd — (azimuth, altitude) to (hour angle, declination)
  iauHd2ae — (hour angle, declination) to (azimuth, altitude)
  iauHd2pa — parallactic angle
• iauTpors — solve for tangent point, spherical
  iauTporv — solve for tangent point, vector
  iauTpsts — project tangent plane to celestial, spherical
  iauTpstv — project tangent plane to celestial, vector
  iauTpxes — project celestial to tangent plane, spherical
  iauTpxev — project celestial to tangent plane, vector
• sofa_h — The include file updated with the new routines
  t_sofa_c.c — Validation program
  sofa_ast_c.pdf — Astrometry Tools Cookbook, with added information on the new routines
• board.lis, copyr.lis, intro.lis, sofa_lib.lis & title.lis — updated compononents of the manual.
• The following routines/files have had very minor documentation changes, mostly typographical:
  • iauDtdb
  • iauEect00
  • iauEpv00
  • iauEqeq94
  • iauFk52h
  • iauFk5hip
  • iauG2icrs
  • iauGmst82
  • iauH2fk5
  • iauIcrs2g
  • iauNut00a
  • iauNut00b
  • iauNut80
  • iauPlan94
  • iauS00
  • iauS06
  • iauXy06
  • sofa_pn_c.pdf

SOFA Release 14: This changes file was updated on 2018 January 29.