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Analysis LLR Observations 1970-2008 and Parameters Orbital and Rotational Motion of the Moon

G. Krasinsky, E. Yagudina

Transactions of IAA RAS, issue 20, 449–452 (2009)

Keywords: радиоинтерферометрия со сверхдлинными базами, LLR наблюдения, параметры орбитально-вращательного движения Луны, численные теории DE403, DE405, DE421, численная теория EPM-ERA, лазерная станция Apache, эфемериды DE, среднеквадратическое отклонение остаточных невязок, невязки, лунные диссипативные эффекты

Abstract

The analysis of LLR data 1970-2008 was carried out applying different numerical theories DE403, DE405, DE421 and theory EPM-ERA developed in IAA RAS. New 453 LLR observations, obtained at the laser station of new generation Apache during 2006-2008 have been included in the process. The partials calculated for by EPM-ERA were made use also of DE ephemeredes. It is shown that slightly more poor fitting by EPM-ERA (rms is 7.2 cm while 5.6 cm for DE) is caused by approximate taking into account of dissipative effects of the Moon. On the other hand, the high precision of DE ephemerides distributed as Cheyshev's polynomials is not available for users. The residuals these theories are characterised by the error about 22 cm due to impossibility to feed back the estimated corrections to their parameters (except coordinates of the stations and reflectors)

Citation

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G. Krasinsky, E. Yagudina. Analysis LLR Observations 1970-2008 and Parameters Orbital and Rotational Motion of the Moon // Transactions of IAA RAS. — 2009. — Issue 20. — P. 449–452. @article{krasinsky2009, abstract = {The analysis of LLR data 1970-2008 was carried out applying different numerical theories DE403, DE405, DE421 and theory EPM-ERA developed in IAA RAS. New 453 LLR observations, obtained at the laser station of new generation Apache during 2006-2008 have been included in the process. The partials calculated for by EPM-ERA were made use also of DE ephemeredes. It is shown that slightly more poor fitting by EPM-ERA (rms is 7.2 cm while 5.6 cm for DE) is caused by approximate taking into account of dissipative effects of the Moon. On the other hand, the high precision of DE ephemerides distributed as Cheyshev's polynomials is not available for users. The residuals these theories are characterised by the error about 22 cm due to impossibility to feed back the estimated corrections to their parameters (except coordinates of the stations and reflectors)}, author = {G. Krasinsky and E. Yagudina}, issue = {20}, journal = {Transactions of IAA RAS}, keyword = {радиоинтерферометрия со сверхдлинными базами, LLR наблюдения, параметры орбитально-вращательного движения Луны, численные теории DE403, DE405, DE421, численная теория EPM-ERA, лазерная станция Apache, эфемериды DE, среднеквадратическое отклонение остаточных невязок, невязки, лунные диссипативные эффекты}, pages = {449--452}, title = {Analysis LLR Observations 1970-2008 and Parameters Orbital and Rotational Motion of the Moon}, url = {http://iaaras.ru/en/library/paper/672/}, year = {2009} } TY - JOUR TI - Analysis LLR Observations 1970-2008 and Parameters Orbital and Rotational Motion of the Moon AU - Krasinsky, G. AU - Yagudina, E. PY - 2009 T2 - Transactions of IAA RAS IS - 20 SP - 449 AB - The analysis of LLR data 1970-2008 was carried out applying different numerical theories DE403, DE405, DE421 and theory EPM-ERA developed in IAA RAS. New 453 LLR observations, obtained at the laser station of new generation Apache during 2006-2008 have been included in the process. The partials calculated for by EPM-ERA were made use also of DE ephemeredes. It is shown that slightly more poor fitting by EPM- ERA (rms is 7.2 cm while 5.6 cm for DE) is caused by approximate taking into account of dissipative effects of the Moon. On the other hand, the high precision of DE ephemerides distributed as Cheyshev's polynomials is not available for users. The residuals these theories are characterised by the error about 22 cm due to impossibility to feed back the estimated corrections to their parameters (except coordinates of the stations and reflectors) UR - http://iaaras.ru/en/library/paper/672/ ER -