summaryrefslogtreecommitdiffstats
path: root/ast/erfa/gmst06.c
diff options
context:
space:
mode:
authorWilliam Joye <wjoye@cfa.harvard.edu>2016-11-02 19:11:06 (GMT)
committerWilliam Joye <wjoye@cfa.harvard.edu>2016-11-02 19:11:06 (GMT)
commit33c55bd916dff8c4932b01c7db58f0103ac31c31 (patch)
treea4cdca3287dd2df5247ce8079c424ffa438b4c2e /ast/erfa/gmst06.c
parent4121637f3d41d6dc23e6543a445b5a3aed9e6ddc (diff)
downloadblt-33c55bd916dff8c4932b01c7db58f0103ac31c31.zip
blt-33c55bd916dff8c4932b01c7db58f0103ac31c31.tar.gz
blt-33c55bd916dff8c4932b01c7db58f0103ac31c31.tar.bz2
update ast
Diffstat (limited to 'ast/erfa/gmst06.c')
-rw-r--r--ast/erfa/gmst06.c145
1 files changed, 0 insertions, 145 deletions
diff --git a/ast/erfa/gmst06.c b/ast/erfa/gmst06.c
deleted file mode 100644
index a79045d..0000000
--- a/ast/erfa/gmst06.c
+++ /dev/null
@@ -1,145 +0,0 @@
-#include "erfa.h"
-
-double eraGmst06(double uta, double utb, double tta, double ttb)
-/*
-** - - - - - - - - - -
-** e r a G m s t 0 6
-** - - - - - - - - - -
-**
-** Greenwich mean sidereal time (consistent with IAU 2006 precession).
-**
-** Given:
-** uta,utb double UT1 as a 2-part Julian Date (Notes 1,2)
-** tta,ttb double TT as a 2-part Julian Date (Notes 1,2)
-**
-** Returned (function value):
-** double Greenwich mean sidereal time (radians)
-**
-** Notes:
-**
-** 1) The UT1 and TT dates uta+utb and tta+ttb respectively, are both
-** Julian Dates, apportioned in any convenient way between the
-** argument pairs. For example, JD=2450123.7 could be expressed in
-** any of these ways, among others:
-**
-** Part A Part B
-**
-** 2450123.7 0.0 (JD method)
-** 2451545.0 -1421.3 (J2000 method)
-** 2400000.5 50123.2 (MJD method)
-** 2450123.5 0.2 (date & time method)
-**
-** The JD method is the most natural and convenient to use in
-** cases where the loss of several decimal digits of resolution
-** is acceptable (in the case of UT; the TT is not at all critical
-** in this respect). The J2000 and MJD methods are good compromises
-** between resolution and convenience. For UT, the date & time
-** method is best matched to the algorithm that is used by the Earth
-** rotation angle function, called internally: maximum precision is
-** delivered when the uta argument is for 0hrs UT1 on the day in
-** question and the utb argument lies in the range 0 to 1, or vice
-** versa.
-**
-** 2) Both UT1 and TT are required, UT1 to predict the Earth rotation
-** and TT to predict the effects of precession. If UT1 is used for
-** both purposes, errors of order 100 microarcseconds result.
-**
-** 3) This GMST is compatible with the IAU 2006 precession and must not
-** be used with other precession models.
-**
-** 4) The result is returned in the range 0 to 2pi.
-**
-** Called:
-** eraEra00 Earth rotation angle, IAU 2000
-** eraAnp normalize angle into range 0 to 2pi
-**
-** Reference:
-**
-** Capitaine, N., Wallace, P.T. & Chapront, J., 2005,
-** Astron.Astrophys. 432, 355
-**
-** Copyright (C) 2013-2014, NumFOCUS Foundation.
-** Derived, with permission, from the SOFA library. See notes at end of file.
-*/
-{
- double t, gmst;
-
-
-/* TT Julian centuries since J2000.0. */
- t = ((tta - ERFA_DJ00) + ttb) / ERFA_DJC;
-
-/* Greenwich mean sidereal time, IAU 2006. */
- gmst = eraAnp(eraEra00(uta, utb) +
- ( 0.014506 +
- ( 4612.156534 +
- ( 1.3915817 +
- ( -0.00000044 +
- ( -0.000029956 +
- ( -0.0000000368 )
- * t) * t) * t) * t) * t) * ERFA_DAS2R);
-
- return gmst;
-
-}
-/*----------------------------------------------------------------------
-**
-**
-** Copyright (C) 2013-2014, 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.
-**
-*/