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VI/79               Lunar Solution ELP 2000-82B  (Chapront-Touze+, 1988)

ELP 2000-85: a semi-analytical lunar ephemeris adequate for historical times Chapront-Touze M., Chapront J. <Astron. Astrophys. 190, 342 (1988)> =1988A&A...190..342C (SIMBAD/NED BibCode) The Lunar Ephemeris ELP 2000 Chapront-Touze M., Chapront J. <Astron. Astrophys. 124, 50 (1983)> =1983A&A...124...50C (SIMBAD/NED BibCode)
ADC_Keywords: Ephemerides ; Keywords: moon - ephemerides - celestial mechanics Description: The theory of the lunar motion consists of the series of the semi-analytical solution ELP2000-82. The constants of the subsequent lunar ephemeris are fitted to the numerical integration DE200/LE200 of the Jet Propulsion Laboratory and the arguments come from the semi-analytical theory ELP 2000-85. Authors' Address: M. Chapront-Touze, J. Chapront Bureau des Longitudes, CNRS URA 707 77, Avenue Denfert-Rochereau 75014, Paris, France Tel : (33) 1 40 51 22 66 (33) 1 40 51 22 71 Fax : (33) 1 46 33 28 34 Contents: The semi-analytical lunar theory ELP 2000-82 contains purely trigonometric series and Poisson series proportional to the time (t) or the square of the time (t2). 36 data files include the series related to various components of the theory for the 3 spherical coordinates: longitude, latitude and distance. Units are arcsecond for longitude and latitude, kilometer for distance. Arguments, constants and coordinate systems are described in the notice "Lunar solution ELP 2000-82B" (elp82b.ps). All this set allows to compute a high precision lunar ephemeris. A FORTRAN example is provided (EXAMPLE) which makes use of the basic subroutine ELP82B. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file elp82b.ps 512 2413 Postscript Notice "Lunar solution ELP 2000-82B" elp82b.f 72 294 Fortran77 Subroutine ELP82B (time substitution) example.f 72 716 Fortran77 program example of use of ELP82B ELP1 99 1024 Main problem. Longitude periodic terms (sine) ELP2 99 919 Main problem. Latitude (sine) ELP3 99 705 Main problem. Distance (cosine) ELP4 45 348 Earth figure perturbations. Longitude ELP5 45 317 Earth figure perturbations. Latitude ELP6 45 238 Earth figure perturbations. Distance ELP7 45 15 Earth figure perturbations. Longitude/t ELP8 45 12 Earth figure perturbations. Latitude/t ELP9 45 9 Earth figure perturbations. Distance/t ELP10 63 14329 Planetary perturbations. Table 1 Longitude ELP11 63 5234 Planetary perturbations. Table 1 Latitude ELP12 63 6632 Planetary perturbations. Table 1 Distance ELP13 63 4385 Planetary perturbations. Table 1 Longitude/t ELP14 63 834 Planetary perturbations. Table 1 Latitude/t ELP15 63 1716 Planetary perturbations. Table 1 Distance/t ELP16 63 171 Planetary perturbations. Table 2 Longitude ELP17 63 151 Planetary perturbations. Table 2 Latitude ELP18 63 115 Planetary perturbations. Table 2 Distance ELP19 63 227 Planetary perturbations. Table 2 Longitude/t ELP20 63 189 Planetary perturbations. Table 2 Latitude/t ELP21 63 170 Planetary perturbations. Table 2 Distance/t ELP22 45 4 Tidal effects. Longitude ELP23 45 3 Tidal effects. Latitude ELP24 45 3 Tidal effects. Distance ELP25 45 7 Tidal effects. Longitude/t ELP26 45 5 Tidal effects. Latitude/t ELP27 45 6 Tidal effects. Distance/t ELP28 45 21 Moon figure perturbations. Longitude ELP29 45 13 Moon figure perturbations. Latitude ELP30 45 15 Moon figure perturbations. Distance ELP31 45 12 Relativistic perturbations. Longitude ELP32 45 5 Relativistic perturbations. Latitude ELP33 45 11 Relativistic perturbations. Distance ELP34 53 29 Planetary perturbations - solar eccentricity. Longitude/t2 ELP35 52 14 Planetary perturbations - solar eccentricity. Latitude/t2 ELP36 52 20 Planetary perturbations - solar eccentricity. Distance/t2
Remarks : (1) The document elp82b.ps ("LUNAR SOLUTION ELP 2000-82B") can be requested directly to the authors. The sources which consist in 36 files (the semi-analytical series) and the programs of use (example.f and elp82b.f) are also available on diskettes (DOS system). (2) The subroutine ELP82B and the program EXAMPLE (FORTRAN 77) are provided to simply illustrate the computation of an ephemeris. If the user wants to improve the rapidity of computation, it is recommended to transform files in direct access and/or to read series in memory once for all.
(End) Gerard Francou [BDL] 31-May-1995
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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