/ftp/cats/J_A+A/312/1017



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J/A+A/312/1017      Coefficients of rigid Earth nutation. I. (Souchay+, 1996)
The following files can be converted to FITS (extension .fit .fit.Z .fgz)
	table41 table42 table51 table52 table61 table62
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drwxr-xr-x 12 cats archive 216 Jan 29 2012 [Up] drwxr-xr-x 2 cats archive 4096 Jan 12 2023 [TAR file] -rw-r--r-- 1 cats archive 351 Sep 10 1996 .message -r--r--r-- 1 cats archive 9075 Aug 29 1996 ReadMe -r--r--r-- 1 cats archive 1430 Mar 28 1996 table41 -r--r--r-- 1 cats archive 911 Mar 28 1996 table42 -r--r--r-- 1 cats archive 2710 Mar 28 1996 table51 -r--r--r-- 1 cats archive 3925 Mar 28 1996 table51.tex -r--r--r-- 1 cats archive 988 Mar 28 1996 table52 -r--r--r-- 1 cats archive 2454 Mar 28 1996 table52.tex -r--r--r-- 1 cats archive 2496 Mar 28 1996 table61 -r--r--r-- 1 cats archive 3577 Mar 28 1996 table61.tex -r--r--r-- 1 cats archive 1024 Mar 28 1996 table62 -r--r--r-- 1 cats archive 2498 Mar 28 1996 table62.tex
Beginning of ReadMe : J/A+A/312/1017 Coefficients of rigid Earth nutation. I. (Souchay+, 1996) ================================================================================ Corrections and new developments in rigid Earth nutation theory. I. Lunisolar influence including indirect planetary effects. Souchay J., Kinoshita H. <Astron. Astrophys. 312, 1017 (1996)> =1996A&A...312.1017S (SIMBAD/NED BibCode) ================================================================================ ADC_Keywords: Earth Keywords: Earth - celestial mechanics - references systems Description: The tables of nutation as given by Kinoshita & Souchay (1990) have been constructed with use of the value of the general precession in longitude as adopted by the IAU1976 (Lieske et al. 1977). The recent observations agree to give a correction of about 0.3"/cy. to this last value. Because of the interaction between the precession and the nutation for a rigid Earth model, it became necessary to use an updated value of p_A_, that is to say: p_A_=5028.7700"/cy and to recalculate the largest coefficients of nutation influenced by this change. This is one of the aim of this paper. Moreover, we study a new contribution to the nutation not included in the preceding studies, which are due to the periodic oscillations of the ecliptic. We also calculate the planetary tilt-effect on the nutation pointed out by Williams (1994), which was not included in Kinoshita & Souchay (1990). At last all the coefficients of the nutation for a rigid-Earth model have been recalculated, with an improved threshold of the potential (5x10^-10^). We give final tables showing all the coefficients subject to some change with respect to Kinoshita & Souchay (1990), for the lunisolar part, including the indirect planetary effects. Only the direct action of the planets on the nutation and the influence of the J_3_ geopotential is not studied here. They will be the subject of a next paper. At last a new value of the dynamical ellipticity of the Earth is calculated in the following: H_D_=0.0032737548.