File Coverage

erfasrc/src/faf03.c
Criterion Covered Total %
statement 7 7 100.0
branch n/a
condition n/a
subroutine n/a
pod n/a
total 7 7 100.0


line stmt bran cond sub pod time code
1             #include "erfa.h"
2              
3 26           double eraFaf03(double t)
4             /*
5             ** - - - - - - - - -
6             ** e r a F a f 0 3
7             ** - - - - - - - - -
8             **
9             ** Fundamental argument, IERS Conventions (2003):
10             ** mean longitude of the Moon minus mean longitude of the ascending
11             ** node.
12             **
13             ** Given:
14             ** t double TDB, Julian centuries since J2000.0 (Note 1)
15             **
16             ** Returned (function value):
17             ** double F, radians (Note 2)
18             **
19             ** Notes:
20             **
21             ** 1) Though t is strictly TDB, it is usually more convenient to use
22             ** TT, which makes no significant difference.
23             **
24             ** 2) The expression used is as adopted in IERS Conventions (2003) and
25             ** is from Simon et al. (1994).
26             **
27             ** References:
28             **
29             ** McCarthy, D. D., Petit, G. (eds.), IERS Conventions (2003),
30             ** IERS Technical Note No. 32, BKG (2004)
31             **
32             ** Simon, J.-L., Bretagnon, P., Chapront, J., Chapront-Touze, M.,
33             ** Francou, G., Laskar, J. 1994, Astron.Astrophys. 282, 663-683
34             **
35             ** Copyright (C) 2013-2019, NumFOCUS Foundation.
36             ** Derived, with permission, from the SOFA library. See notes at end of file.
37             */
38             {
39             double a;
40              
41              
42             /* Mean longitude of the Moon minus that of the ascending node */
43             /* (IERS Conventions 2003). */
44 26           a = fmod( 335779.526232 +
45 26           t * ( 1739527262.8478 +
46 26           t * ( - 12.7512 +
47 26           t * ( - 0.001037 +
48 26           t * ( 0.00000417 ) ) ) ), ERFA_TURNAS ) * ERFA_DAS2R;
49              
50 26           return a;
51              
52              
53             }
54             /*----------------------------------------------------------------------
55             **
56             **
57             ** Copyright (C) 2013-2019, NumFOCUS Foundation.
58             ** All rights reserved.
59             **
60             ** This library is derived, with permission, from the International
61             ** Astronomical Union's "Standards of Fundamental Astronomy" library,
62             ** available from http://www.iausofa.org.
63             **
64             ** The ERFA version is intended to retain identical functionality to
65             ** the SOFA library, but made distinct through different function and
66             ** file names, as set out in the SOFA license conditions. The SOFA
67             ** original has a role as a reference standard for the IAU and IERS,
68             ** and consequently redistribution is permitted only in its unaltered
69             ** state. The ERFA version is not subject to this restriction and
70             ** therefore can be included in distributions which do not support the
71             ** concept of "read only" software.
72             **
73             ** Although the intent is to replicate the SOFA API (other than
74             ** replacement of prefix names) and results (with the exception of
75             ** bugs; any that are discovered will be fixed), SOFA is not
76             ** responsible for any errors found in this version of the library.
77             **
78             ** If you wish to acknowledge the SOFA heritage, please acknowledge
79             ** that you are using a library derived from SOFA, rather than SOFA
80             ** itself.
81             **
82             **
83             ** TERMS AND CONDITIONS
84             **
85             ** Redistribution and use in source and binary forms, with or without
86             ** modification, are permitted provided that the following conditions
87             ** are met:
88             **
89             ** 1 Redistributions of source code must retain the above copyright
90             ** notice, this list of conditions and the following disclaimer.
91             **
92             ** 2 Redistributions in binary form must reproduce the above copyright
93             ** notice, this list of conditions and the following disclaimer in
94             ** the documentation and/or other materials provided with the
95             ** distribution.
96             **
97             ** 3 Neither the name of the Standards Of Fundamental Astronomy Board,
98             ** the International Astronomical Union nor the names of its
99             ** contributors may be used to endorse or promote products derived
100             ** from this software without specific prior written permission.
101             **
102             ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
103             ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
104             ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
105             ** FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
106             ** COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
107             ** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
108             ** BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
109             ** LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
110             ** CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
111             ** LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
112             ** ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
113             ** POSSIBILITY OF SUCH DAMAGE.
114             **
115             */