File Coverage

erfasrc/src/faom03.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 eraFaom03(double t)
4             /*
5             ** - - - - - - - - - -
6             ** e r a F a o m 0 3
7             ** - - - - - - - - - -
8             **
9             ** Fundamental argument, IERS Conventions (2003):
10             ** mean longitude of the Moon's ascending node.
11             **
12             ** Given:
13             ** t double TDB, Julian centuries since J2000.0 (Note 1)
14             **
15             ** Returned (function value):
16             ** double Omega, 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) and
24             ** is from Simon et al. (1994).
25             **
26             ** References:
27             **
28             ** McCarthy, D. D., Petit, G. (eds.), IERS Conventions (2003),
29             ** IERS Technical Note No. 32, BKG (2004)
30             **
31             ** Simon, J.-L., Bretagnon, P., Chapront, J., Chapront-Touze, M.,
32             ** Francou, G., Laskar, J. 1994, Astron.Astrophys. 282, 663-683
33             **
34             ** Copyright (C) 2013-2020, NumFOCUS Foundation.
35             ** Derived, with permission, from the SOFA library. See notes at end of file.
36             */
37             {
38             double a;
39              
40              
41             /* Mean longitude of the Moon's ascending node */
42             /* (IERS Conventions 2003). */
43 26           a = fmod( 450160.398036 +
44 26           t * ( - 6962890.5431 +
45 26           t * ( 7.4722 +
46 26           t * ( 0.007702 +
47 26           t * ( - 0.00005939 ) ) ) ), ERFA_TURNAS ) * ERFA_DAS2R;
48              
49 26           return a;
50              
51             }
52             /*----------------------------------------------------------------------
53             **
54             **
55             ** Copyright (C) 2013-2020, NumFOCUS Foundation.
56             ** All rights reserved.
57             **
58             ** This library is derived, with permission, from the International
59             ** Astronomical Union's "Standards of Fundamental Astronomy" library,
60             ** available from http://www.iausofa.org.
61             **
62             ** The ERFA version is intended to retain identical functionality to
63             ** the SOFA library, but made distinct through different function and
64             ** file names, as set out in the SOFA license conditions. The SOFA
65             ** original has a role as a reference standard for the IAU and IERS,
66             ** and consequently redistribution is permitted only in its unaltered
67             ** state. The ERFA version is not subject to this restriction and
68             ** therefore can be included in distributions which do not support the
69             ** concept of "read only" software.
70             **
71             ** Although the intent is to replicate the SOFA API (other than
72             ** replacement of prefix names) and results (with the exception of
73             ** bugs; any that are discovered will be fixed), SOFA is not
74             ** responsible for any errors found in this version of the library.
75             **
76             ** If you wish to acknowledge the SOFA heritage, please acknowledge
77             ** that you are using a library derived from SOFA, rather than SOFA
78             ** itself.
79             **
80             **
81             ** TERMS AND CONDITIONS
82             **
83             ** Redistribution and use in source and binary forms, with or without
84             ** modification, are permitted provided that the following conditions
85             ** are met:
86             **
87             ** 1 Redistributions of source code must retain the above copyright
88             ** notice, this list of conditions and the following disclaimer.
89             **
90             ** 2 Redistributions in binary form must reproduce the above copyright
91             ** notice, this list of conditions and the following disclaimer in
92             ** the documentation and/or other materials provided with the
93             ** distribution.
94             **
95             ** 3 Neither the name of the Standards Of Fundamental Astronomy Board,
96             ** the International Astronomical Union nor the names of its
97             ** contributors may be used to endorse or promote products derived
98             ** from this software without specific prior written permission.
99             **
100             ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
101             ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
102             ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
103             ** FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
104             ** COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
105             ** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
106             ** BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
107             ** LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
108             ** CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
109             ** LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
110             ** ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
111             ** POSSIBILITY OF SUCH DAMAGE.
112             **
113             */