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- W2739830403 abstract "ABSTRACT. The analysis of Lunar Laser Ranging (LLR) data from 1970 till 2008 has been carriedout to improve the lunar part of the luni-solar ephemerides EPM2008 under developing. The dynamicalmodel of the lunar rotation takes into account the effects of elasticity of the lunar body and the tidaldissipation in the Moon. The orbital parameters of the Moon, parameters of the physical libration andcoordinates of the retro-reflectors have been estimated. The new ephemeris are compared with DE403,DE405 and DE421 versions of the JPL ephemerides. All the calculations have been carried out in theframework of the universal software package ERA developed for scientific research in the ephemeris anddynamical astronomy. 1. INTRODUCTION The very precise now days LLR observations are the basis for construction of the modern lunarephemeris. The high accuracy of the modern LLR data demands dynamical theories of a adequateprecision. Such theories are developed and supported by JPL, USA (DE403, DE405, DE421); by IMCCE(INPOP06), Observatoire de Paris and is under developing in IAA RAS (Russia Institute of AppliedAstronomy)-EPM-Ephemerides Planets and Moon. The application of EPM to planets is very knownand are in use. The preliminary version of lunar numerical theory has been presented (for example, inKrasinsky, 2002), where analysis of 14612 LLR observations of time interval 1970-2001 was fulfilled, theselenodynamical parameters have been obtained. At present analysis of 16320 LLR observations (timeinterval is 1970-2008)has been included in processing for improving ephemeris of the Moon and obtainingsome selenodynamical parameters. To estimate the precision of our EPM2008 ephemeris the result hasbeen compared with three versions of DE ephemerides." @default.
- W2739830403 created "2017-08-08" @default.
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- W2739830403 date "2008-01-01" @default.
- W2739830403 modified "2023-09-26" @default.
- W2739830403 title "Lunar numerical theory EPM2008 from analysis of LLR data" @default.
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