File Coverage

erfasrc/src/fame03.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 23           double eraFame03(double t)
4             /*
5             ** - - - - - - - - - -
6             ** e r a F a m e 0 3
7             ** - - - - - - - - - -
8             **
9             ** Fundamental argument, IERS Conventions (2003):
10             ** mean longitude of Mercury.
11             **
12             ** Given:
13             ** t double TDB, Julian centuries since J2000.0 (Note 1)
14             **
15             ** Returned (function value):
16             ** double mean longitude of Mercury, 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             ** comes from Souchay et al. (1999) after 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             ** Souchay, J., Loysel, B., Kinoshita, H., Folgueira, M. 1999,
35             ** Astron.Astrophys.Supp.Ser. 135, 111
36             **
37             ** Copyright (C) 2013-2019, NumFOCUS Foundation.
38             ** Derived, with permission, from the SOFA library. See notes at end of file.
39             */
40             {
41             double a;
42              
43              
44             /* Mean longitude of Mercury (IERS Conventions 2003). */
45 23           a = fmod(4.402608842 + 2608.7903141574 * t, ERFA_D2PI);
46              
47 23           return a;
48              
49             }
50             /*----------------------------------------------------------------------
51             **
52             **
53             ** Copyright (C) 2013-2019, NumFOCUS Foundation.
54             ** All rights reserved.
55             **
56             ** This library is derived, with permission, from the International
57             ** Astronomical Union's "Standards of Fundamental Astronomy" library,
58             ** available from http://www.iausofa.org.
59             **
60             ** The ERFA version is intended to retain identical functionality to
61             ** the SOFA library, but made distinct through different function and
62             ** file names, as set out in the SOFA license conditions. The SOFA
63             ** original has a role as a reference standard for the IAU and IERS,
64             ** and consequently redistribution is permitted only in its unaltered
65             ** state. The ERFA version is not subject to this restriction and
66             ** therefore can be included in distributions which do not support the
67             ** concept of "read only" software.
68             **
69             ** Although the intent is to replicate the SOFA API (other than
70             ** replacement of prefix names) and results (with the exception of
71             ** bugs; any that are discovered will be fixed), SOFA is not
72             ** responsible for any errors found in this version of the library.
73             **
74             ** If you wish to acknowledge the SOFA heritage, please acknowledge
75             ** that you are using a library derived from SOFA, rather than SOFA
76             ** itself.
77             **
78             **
79             ** TERMS AND CONDITIONS
80             **
81             ** Redistribution and use in source and binary forms, with or without
82             ** modification, are permitted provided that the following conditions
83             ** are met:
84             **
85             ** 1 Redistributions of source code must retain the above copyright
86             ** notice, this list of conditions and the following disclaimer.
87             **
88             ** 2 Redistributions in binary form must reproduce the above copyright
89             ** notice, this list of conditions and the following disclaimer in
90             ** the documentation and/or other materials provided with the
91             ** distribution.
92             **
93             ** 3 Neither the name of the Standards Of Fundamental Astronomy Board,
94             ** the International Astronomical Union nor the names of its
95             ** contributors may be used to endorse or promote products derived
96             ** from this software without specific prior written permission.
97             **
98             ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
99             ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
100             ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
101             ** FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
102             ** COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
103             ** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
104             ** BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
105             ** LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
106             ** CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
107             ** LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
108             ** ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
109             ** POSSIBILITY OF SUCH DAMAGE.
110             **
111             */