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Detailed Description of VI/81
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Individual files can be fetched (via http) from
here
or via ftp from: ftp://cdsarc.u-strasbg.fr/pub/cats/VI/81
This standardized document follows the rules of the Standard Description for Astronomical Catalogues. For those having to work on this catalogue using FORTRAN programs, this ReadMe file can be transformed into a f77-compliant program which reads the files making up this catalogue, in two versions: either a f77 program loading whole files into arrays, or a f77-program reading each data file line by line.
VI/81 Planetary Solutions VSOP87 (Bretagnon+, 1988)
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Planetary Theories in rectangular and spherical variables: VSOP87 solution.
Bretagnon P., Francou G.
<Astron. Astrophys. 202, 309 (1988)>
=1988A&A...202..309B
Theorie du mouvement de l'ensemble des planetes (VSOP82).
Bretagnon P.
<Astron. Astrophys. 114, 278 (1982)>
=1982A&A...114..278B
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ADC_Keywords: Ephemerides ;
Keywords: planets - ephemerides - celestial mechanics
Description:
The Planetary solutions VSOP87 (Variations Seculaires des Orbites
Planetaires) are analytical solutions of the motion of the planets in
different versions. The main version VSOP87 consists of the series in
elliptic elements as in the case of VSOP82 solution and the other
versions VSOP87 (A-B-C-D-E) are built in in rectangular and spherical
variables.
Authors' Address:
P. Bretagnon, G. Francou
Bureau des Longitudes, CNRS URA 707
77, Avenue Denfert-Rochereau
75014, Paris, France
Tel : (33) 1 40 51 22 69 (33) 1 40 51 22 60
Fax : (33) 1 46 33 28 34
E-mail :
Contents:
The main version of VSOP87 is similar to the previous theory VSOP82.
In the both cases the constants of integration have been determined by
fitting to the numerical integration DE200 of the Jet Propulsion
Laboratory. The various versions of VSOP87 are different from one to
another in the type of coordinates and the reference frame.
VSOP87 : heliocentric elliptic variables; equinox and ecliptic J2000.
VSOP87A : heliocentric rectangular variables; equinox and ecliptic J2000.
VSOP87B : heliocentric spherical variables; equinox and ecliptic J2000.
VSOP87C : heliocentric rectangular variables; equinox and ecliptic of date.
VSOP87D : heliocentric spherical variables; equinox and ecliptic of date.
VSOP87E : barycentric rectangular variables; equinox and ecliptic J2000.
A program EXAMPLE (Fortran 77) is provided which makes use of the
subroutine VSOP87 which substitutes the time in the series of the
solutions VSOP87.
File Summary:
FileName Lrecl Records Explanations
× ReadMe 80 . This file
× vsop87.txt 80 338 Notice for use of VSOP87 files
× vsop87.f 72 231 Fortran77 subroutine VSOP87 (time substitution)
× example.f 72 781 Fortran77 program example of use of VSOP87
× vsop87.chk 77 2000 Results of substitution of time in VSOP87
series
× VSOP87.mer 132 4843 Mercury Heliocentric elliptic elements J2000
× VSOP87.ven 132 3018 Venus Heliocentric elliptic elements J2000
× VSOP87.emb 132 4233 Earth-Moon Heliocentric elliptic elements J2000
× VSOP87.mar 132 7540 Mars Heliocentric elliptic elements J2000
× VSOP87.jup 132 6109 Jupiter Heliocentric elliptic elements J2000
× VSOP87.sat 132 12375 Saturn Heliocentric elliptic elements J2000
× VSOP87.ura 132 15212 Uranus Heliocentric elliptic elements J2000
× VSOP87.nep 132 8049 Neptune Heliocentric elliptic elements J2000
× VSOP87A.mer 132 6377 Mercury Heliocentric rectangular var. J2000
× VSOP87A.ven 132 2375 Venus Heliocentric rectangular var. J2000
× VSOP87A.ear 132 3556 Earth Heliocentric rectangular var. J2000
× VSOP87A.emb 132 3340 Earth-Moon Heliocentric rectangular var. J2000
× VSOP87A.mar 132 7091 Mars Heliocentric rectangular var. J2000
× VSOP87A.jup 132 4452 Jupiter Heliocentric rectangular var. J2000
× VSOP87A.sat 132 7530 Saturn Heliocentric rectangular var. J2000
× VSOP87A.ura 132 5303 Uranus Heliocentric rectangular var. J2000
× VSOP87A.nep 132 2650 Neptune Heliocentric rectangular var. J2000
× VSOP87B.mer 132 7141 Mercury Heliocentric spherical var. J2000
× VSOP87B.ven 132 1728 Venus Heliocentric spherical var. J2000
× VSOP87B.ear 132 2582 Earth Heliocentric spherical var. J2000
× VSOP87B.mar 132 6418 Mars Heliocentric spherical var. J2000
× VSOP87B.jup 132 3643 Jupiter Heliocentric spherical var. J2000
× VSOP87B.sat 132 6383 Saturn Heliocentric spherical var. J2000
× VSOP87B.ura 132 5283 Uranus Heliocentric spherical var. J2000
× VSOP87B.nep 132 2037 Neptune Heliocentric spherical var. J2000
× VSOP87C.mer 132 8173 Mercury Heliocentric rectangular var. of date
× VSOP87C.ven 132 2922 Venus Heliocentric rectangular var. of date
× VSOP87C.ear 132 4211 Earth Heliocentric rectangular var. of date
× VSOP87C.mar 132 8321 Mars Heliocentric rectangular var. of date
× VSOP87C.jup 132 5573 Jupiter Heliocentric rectangular var. of date
× VSOP87C.sat 132 8801 Saturn Heliocentric rectangular var. of date
× VSOP87C.ura 132 7010 Uranus Heliocentric rectangular var. of date
× VSOP87C.nep 132 2898 Neptune Heliocentric rectangular var. of date
× VSOP87D.mer 132 6845 Mercury Heliocentric spherical var. of date
× VSOP87D.ven 132 1700 Venus Heliocentric spherical var. of date
× VSOP87D.ear 132 2442 Earth Heliocentric spherical var. of date
× VSOP87D.mar 132 5501 Mars Heliocentric spherical var. of date
× VSOP87D.jup 132 3501 Jupiter Heliocentric spherical var. of date
× VSOP87D.sat 132 5777 Saturn Heliocentric spherical var. of date
× VSOP87D.ura 132 4005 Uranus Heliocentric spherical var. of date
× VSOP87D.nep 132 1946 Neptune Heliocentric spherical var. of date
× VSOP87E.mer 132 7898 Mercury Barycentric rectangular var. J2000
× VSOP87E.ven 132 4675 Venus Barycentric rectangular var. J2000
× VSOP87E.ear 132 5574 Earth Barycentric rectangular var. J2000
× VSOP87E.mar 132 7593 Mars Barycentric rectangular var. J2000
× VSOP87E.jup 132 4560 Jupiter Barycentric rectangular var. J2000
× VSOP87E.sat 132 7540 Saturn Barycentric rectangular var. J2000
× VSOP87E.ura 132 5139 Uranus Barycentric rectangular var. J2000
× VSOP87E.nep 132 2403 Neptune Barycentric rectangular var. J2000
× VSOP87E.sun 132 6652 Sun Barycentric rectangular var. J2000
See also:
VI/88 : Ephemerides of Pluto based on DE200 (Chapront+ 1995)
VI/87 : Planetary Ephemerides based on DE403 (Chapront+ 1996)
Remarks:
The subroutine VSOP87 and the program EXAMPLE (Fortran 77) are
provided to simply illustrate the computation of a planetary
ephemeris. If the user wants to improve the rapidity of computation,
it is recommended to transform files in direct access or to read
series in memory once for all.
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(End) Gerard Francou [BDL], Francois Ochsenbein [CDS] 31-May-1995
