File Coverage

erfasrc/src/fapa03.c
Criterion Covered Total %
statement 3 3 100.0
branch n/a
condition n/a
subroutine n/a
pod n/a
total 3 3 100.0


line stmt bran cond sub pod time code
1             #include "erfa.h"
2              
3 26           double eraFapa03(double t)
4             /*
5             ** - - - - - - - - - -
6             ** e r a F a p a 0 3
7             ** - - - - - - - - - -
8             **
9             ** Fundamental argument, IERS Conventions (2003):
10             ** general accumulated precession in longitude.
11             **
12             ** Given:
13             ** t double TDB, Julian centuries since J2000.0 (Note 1)
14             **
15             ** Returned (function value):
16             ** double general precession in longitude, radians (Note 2)
17             **
18             ** Notes:
19             **
20             ** 1) Though t is strictly TDB, it is usually more convenient to use
21             ** TT, which makes no significant difference.
22             **
23             ** 2) The expression used is as adopted in IERS Conventions (2003). It
24             ** is taken from Kinoshita & Souchay (1990) and comes originally
25             ** from Lieske et al. (1977).
26             **
27             ** References:
28             **
29             ** Kinoshita, H. and Souchay J. 1990, Celest.Mech. and Dyn.Astron.
30             ** 48, 187
31             **
32             ** Lieske, J.H., Lederle, T., Fricke, W. & Morando, B. 1977,
33             ** Astron.Astrophys. 58, 1-16
34             **
35             ** McCarthy, D. D., Petit, G. (eds.), IERS Conventions (2003),
36             ** IERS Technical Note No. 32, BKG (2004)
37             **
38             ** Copyright (C) 2013-2020, NumFOCUS Foundation.
39             ** Derived, with permission, from the SOFA library. See notes at end of file.
40             */
41             {
42             double a;
43              
44              
45             /* General accumulated precession in longitude. */
46 26           a = (0.024381750 + 0.00000538691 * t) * t;
47              
48 26           return a;
49              
50             }
51             /*----------------------------------------------------------------------
52             **
53             **
54             ** Copyright (C) 2013-2020, NumFOCUS Foundation.
55             ** All rights reserved.
56             **
57             ** This library is derived, with permission, from the International
58             ** Astronomical Union's "Standards of Fundamental Astronomy" library,
59             ** available from http://www.iausofa.org.
60             **
61             ** The ERFA version is intended to retain identical functionality to
62             ** the SOFA library, but made distinct through different function and
63             ** file names, as set out in the SOFA license conditions. The SOFA
64             ** original has a role as a reference standard for the IAU and IERS,
65             ** and consequently redistribution is permitted only in its unaltered
66             ** state. The ERFA version is not subject to this restriction and
67             ** therefore can be included in distributions which do not support the
68             ** concept of "read only" software.
69             **
70             ** Although the intent is to replicate the SOFA API (other than
71             ** replacement of prefix names) and results (with the exception of
72             ** bugs; any that are discovered will be fixed), SOFA is not
73             ** responsible for any errors found in this version of the library.
74             **
75             ** If you wish to acknowledge the SOFA heritage, please acknowledge
76             ** that you are using a library derived from SOFA, rather than SOFA
77             ** itself.
78             **
79             **
80             ** TERMS AND CONDITIONS
81             **
82             ** Redistribution and use in source and binary forms, with or without
83             ** modification, are permitted provided that the following conditions
84             ** are met:
85             **
86             ** 1 Redistributions of source code must retain the above copyright
87             ** notice, this list of conditions and the following disclaimer.
88             **
89             ** 2 Redistributions in binary form must reproduce the above copyright
90             ** notice, this list of conditions and the following disclaimer in
91             ** the documentation and/or other materials provided with the
92             ** distribution.
93             **
94             ** 3 Neither the name of the Standards Of Fundamental Astronomy Board,
95             ** the International Astronomical Union nor the names of its
96             ** contributors may be used to endorse or promote products derived
97             ** from this software without specific prior written permission.
98             **
99             ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
100             ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
101             ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
102             ** FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
103             ** COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
104             ** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
105             ** BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
106             ** LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
107             ** CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
108             ** LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
109             ** ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
110             ** POSSIBILITY OF SUCH DAMAGE.
111             **
112             */