source: Sophya/trunk/SophyaExt/XephemAstroLib/vsop87.h@ 3359

Last change on this file since 3359 was 3111, checked in by cmv, 19 years ago

mise en conformite xephem 3.7.2 cmv 22/11/2006
File size: 3.7 KB
Line 
1/* Position of planets mercury to neptune; from:
2ftp://ftp.bdl.fr/pub/ephem/planets/vsop87/
3from README:
4
5========================== ===========================
6 BUREAU DES LONGITUDES
7 PLANETARY SOLUTION VSOP87
8 1996, January
9========================== ===========================
10
11These files and programs are associated to :
12
13Planetary Theories in rectangular and spherical variables: VSOP87 solution.
14 Bretagnon P., Francou G.
15 Astron. Astrophys. 202, 309 (1988).
16
17Theorie du mouvement de l'ensemble des planetes (VSOP82).
18 Bretagnon P.
19 Astron. Astrophys. 114, 278 (1982).
20
21==============================================================================
22
23Description:
24 The Planetary solutions VSOP87 (Variations Seculaires des Orbites
25 Planetaires) are analytical solutions of the motion of the planets in
26 different versions. The main version VSOP87 consists of the series in
27 elliptic elements as in the case of VSOP82 solution and the other
28 versions VSOP87 (A-B-C-D-E) are built in rectangular and spherical
29 variables.
30
31Authors' Address:
32 P. Bretagnon, G. Francou
33 Bureau des Longitudes, CNRS URA 707
34 77, Avenue Denfert-Rochereau
35 75014, Paris, France
36 Tel : (33) 1 40 51 22 69 (33) 1 40 51 22 60
37 Fax : (33) 1 46 33 28 34
38 E-mail : pierre@bdl.fr francou@bdl.fr
39
40Contents:
41 The main version of VSOP87 is similar to the previous theory VSOP82.
42 In the both cases the constants of integration have been determined by
43 fitting to the numerical integration DE200 of the Jet Propulsion
44 Laboratory. The various versions of VSOP87 are different from one to
45 another in the type of coordinates and the reference frame.
46 VSOP87 : heliocentric elliptic variables; equinox and ecliptic J2000.
47 VSOP87A : heliocentric rectangular variables; equinox and ecliptic J2000.
48 VSOP87B : heliocentric spherical variables; equinox and ecliptic J2000.
49 VSOP87C : heliocentric rectangular variables; equinox and ecliptic of date.
50 VSOP87D : heliocentric spherical variables; equinox and ecliptic of date.
51 VSOP87E : barycentric rectangular variables; equinox and ecliptic J2000.
52...
53==============================================================================
54User feed-back is encouraged. Unless otherwise specified, send comments and bug
55reports to: E-mail : comments@bdl.fr
56 Fax : (33) 1 46 33 28 34
57 Postal mail: Bureau des longitudes
58 77 avenue Denfert Rochereau
59 F-75014 PARIS
60==============================================================================
61 implemented for C: stern
62*/
63
64#define VSOP_ASCALE 1e8 /* amplitude factor as stored */
65
66/* coding flags */
67#define VSOP_SPHERICAL 1 /* version in data.c uses spherical coords */
68#define VSOP_GETRATE 0 /* calculate time derivatives of coordinates */
69
70/* data tables */
71extern double vx_mercury[][3];
72extern int vn_mercury[][3];
73extern double vx_venus[][3];
74extern int vn_venus[][3];
75extern double vx_earth[][3];
76extern int vn_earth[][3];
77extern double vx_mars[][3];
78extern int vn_mars[][3];
79extern double vx_jupiter[][3];
80extern int vn_jupiter[][3];
81extern double vx_saturn[][3];
82extern int vn_saturn[][3];
83extern double vx_uranus[][3];
84extern int vn_uranus[][3];
85extern double vx_neptune[][3];
86extern int vn_neptune[][3];
87
88extern int vsop87 (double mj, int obj, double prec, double *ret);
89
90
91/* For RCS Only -- Do Not Edit
92 * @(#) $RCSfile: vsop87.h,v $ $Date: 2006-11-22 13:53:31 $ $Revision: 1.6 $ $Name: not supported by cvs2svn $
93 */
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