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                         IMCCE - Observatoire de Paris
                           /pub/ephem/asteroids/series
					  1997, May 14
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EPHEMERIDES - MINOR PLANETS:

AUTHORS :
	P. Rocher J. Chapront

ADDRESS :
	IMCCE - Observatoire de Paris
	Group: Dynamics of Solar System
	77 av. Denfert Rochereau, F-75014 PARIS
	Phone: 01 40 51 22 72
	Fax:   01 46 33 28 34
	e-mail: rocher@imcce.fr Jean.Chapront@imcce.fr

REFERENCES :
	Rocher P. and Chapront J. 1997, Compact Ephemerides for
	Minor Planets, Planetary and Space Science, To be published
_______________________________________________________________

DESCRIPTION : The observations of minor planets have been collected from Minor
	Planets Center. Numerical integrations have been performed and
	fitted to observations. Ephemerides of the equatorial heliocentric
	rectangular coordinates of the minor planets are presented under
	the form of Poisson series, covering 150 years from 1900.
	The list is presently limited to planets number: 1, 2, 3, 4, 5, 6,
	7, and 324 (Ceres, Pallas, Juno, Vesta, Astrae, Hebe, Iris and
	Bamberga).

CONTENTS : 2 types of files are provided:

	1 - Time series for heliocentric equatorial coordinates of
	    minor planets, as well as heliocentric and geocentric equatorial
	    rectangular coordinates of the Earth-Moon barycenter under the
	    same form which are necessary for geocentric positions.
	2 - Software: A FORTRAN program useful to read the series and
	    substitute the time. It computes geocentric positions.
	    An example of use is given.

FILE SUMMARY :

--------------------------------------------------------------------------------
FileName      Lrecl   Records     Explanations
--------------------------------------------------------------------------------

README        80         .        This file
0001.XYZ      80      1395        Ceres
0002.XYZ      80      1656        Pallas
0003.XYZ      80      1665        Juno
0004.XYZ      80      1557        Vesta
0005.XYZ      80      1584        Astrae
0006.XYZ      80      1773        Hebe
0007.XYZ      80      1701        Iris
0324.XYZ      80      1791        Vesta

EMB.XYZ       80      2155        Heliocentric equatorial rectangular
				  coordinates of the Earth-Moon barycenter
BARYCENT.XYZ  80       152        Geocentric equatorial rectangular
				  coordinates of the Earth-Moon barycenter
EPHASTER.FOR  80       354        FORTRAN source program to compute
                                  geocentric positions
--------------------------------------------------------------------------------
REMARK :
A bug in EPHASTER.FOR has been removed from the previous version (February 1)

User feed-back is encouraged. Unless otherwise specified,
send comments and bug reports to:       E-mail     : comments@imcce.fr
					Fax        : (33) 1 46 33 28 34
					Postal mail: IMCCE - Obs. de Paris
					77 avenue Denfert Rochereau
					F-75014 PARIS

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