summaryrefslogtreecommitdiffstats
path: root/ast/erfa/atciqz.c
diff options
context:
space:
mode:
Diffstat (limited to 'ast/erfa/atciqz.c')
-rw-r--r--ast/erfa/atciqz.c153
1 files changed, 0 insertions, 153 deletions
diff --git a/ast/erfa/atciqz.c b/ast/erfa/atciqz.c
deleted file mode 100644
index d141b91..0000000
--- a/ast/erfa/atciqz.c
+++ /dev/null
@@ -1,153 +0,0 @@
-#include "erfa.h"
-
-void eraAtciqz(double rc, double dc, eraASTROM *astrom,
- double *ri, double *di)
-/*
-** - - - - - - - - - -
-** e r a A t c i q z
-** - - - - - - - - - -
-**
-** Quick ICRS to CIRS transformation, given precomputed star-
-** independent astrometry parameters, and assuming zero parallax and
-** proper motion.
-**
-** Use of this function is appropriate when efficiency is important and
-** where many star positions are to be transformed for one date. The
-** star-independent parameters can be obtained by calling one of the
-** functions eraApci[13], eraApcg[13], eraApco[13] or eraApcs[13].
-**
-** The corresponding function for the case of non-zero parallax and
-** proper motion is eraAtciq.
-**
-** Given:
-** rc,dc double ICRS astrometric RA,Dec (radians)
-** astrom eraASTROM* star-independent astrometry parameters:
-** pmt double PM time interval (SSB, Julian years)
-** eb double[3] SSB to observer (vector, au)
-** eh double[3] Sun to observer (unit vector)
-** em double distance from Sun to observer (au)
-** v double[3] barycentric observer velocity (vector, c)
-** bm1 double sqrt(1-|v|^2): reciprocal of Lorenz factor
-** bpn double[3][3] bias-precession-nutation matrix
-** along double longitude + s' (radians)
-** xpl double polar motion xp wrt local meridian (radians)
-** ypl double polar motion yp wrt local meridian (radians)
-** sphi double sine of geodetic latitude
-** cphi double cosine of geodetic latitude
-** diurab double magnitude of diurnal aberration vector
-** eral double "local" Earth rotation angle (radians)
-** refa double refraction constant A (radians)
-** refb double refraction constant B (radians)
-**
-** Returned:
-** ri,di double CIRS RA,Dec (radians)
-**
-** Note:
-**
-** All the vectors are with respect to BCRS axes.
-**
-** References:
-**
-** Urban, S. & Seidelmann, P. K. (eds), Explanatory Supplement to
-** the Astronomical Almanac, 3rd ed., University Science Books
-** (2013).
-**
-** Klioner, Sergei A., "A practical relativistic model for micro-
-** arcsecond astrometry in space", Astr. J. 125, 1580-1597 (2003).
-**
-** Called:
-** eraS2c spherical coordinates to unit vector
-** eraLdsun light deflection due to Sun
-** eraAb stellar aberration
-** eraRxp product of r-matrix and p-vector
-** eraC2s p-vector to spherical
-** eraAnp normalize angle into range +/- pi
-**
-** Copyright (C) 2013-2016, NumFOCUS Foundation.
-** Derived, with permission, from the SOFA library. See notes at end of file.
-*/
-{
- double pco[3], pnat[3], ppr[3], pi[3], w;
-
-
-/* BCRS coordinate direction (unit vector). */
- eraS2c(rc, dc, pco);
-
-/* Light deflection by the Sun, giving BCRS natural direction. */
- eraLdsun(pco, astrom->eh, astrom->em, pnat);
-
-/* Aberration, giving GCRS proper direction. */
- eraAb(pnat, astrom->v, astrom->em, astrom->bm1, ppr);
-
-/* Bias-precession-nutation, giving CIRS proper direction. */
- eraRxp(astrom->bpn, ppr, pi);
-
-/* CIRS RA,Dec. */
- eraC2s(pi, &w, di);
- *ri = eraAnp(w);
-
-/* Finished. */
-
-}
-/*----------------------------------------------------------------------
-**
-**
-** Copyright (C) 2013-2016, NumFOCUS Foundation.
-** All rights reserved.
-**
-** This library is derived, with permission, from the International
-** Astronomical Union's "Standards of Fundamental Astronomy" library,
-** available from http://www.iausofa.org.
-**
-** The ERFA version is intended to retain identical functionality to
-** the SOFA library, but made distinct through different function and
-** file names, as set out in the SOFA license conditions. The SOFA
-** original has a role as a reference standard for the IAU and IERS,
-** and consequently redistribution is permitted only in its unaltered
-** state. The ERFA version is not subject to this restriction and
-** therefore can be included in distributions which do not support the
-** concept of "read only" software.
-**
-** Although the intent is to replicate the SOFA API (other than
-** replacement of prefix names) and results (with the exception of
-** bugs; any that are discovered will be fixed), SOFA is not
-** responsible for any errors found in this version of the library.
-**
-** If you wish to acknowledge the SOFA heritage, please acknowledge
-** that you are using a library derived from SOFA, rather than SOFA
-** itself.
-**
-**
-** TERMS AND CONDITIONS
-**
-** Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions
-** are met:
-**
-** 1 Redistributions of source code must retain the above copyright
-** notice, this list of conditions and the following disclaimer.
-**
-** 2 Redistributions in binary form must reproduce the above copyright
-** notice, this list of conditions and the following disclaimer in
-** the documentation and/or other materials provided with the
-** distribution.
-**
-** 3 Neither the name of the Standards Of Fundamental Astronomy Board,
-** the International Astronomical Union nor the names of its
-** contributors may be used to endorse or promote products derived
-** from this software without specific prior written permission.
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-** FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-** COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-** BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-** LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-** CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-** LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-** ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-** POSSIBILITY OF SUCH DAMAGE.
-**
-*/