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J/A+A/427/371       Galilean satellites ephemerides          (Lainey+, 2004)

New accurate ephemerides for the Galilean satellites of Jupiter. II. Fitting the observations. Lainey V., Arlot J.E., Vienne A <Astron. Astrophys. 427, 371 (2004)> =2004A&A...427..371L
ADC_Keywords: Ephemerides ; Planets Keywords: astrometry - planets and satellites: individual: Io - planets and satellites: individual: Europa - planets and satellites individual: Ganymede - planets and satellites: individual: Callisto - ephemerides Abstract: We present a new model of the four Galilean satellites Io, Europa, Ganymede and Callisto, able to deliver accurate ephemerides over a very long time span (several centuries). In the first paper (Lainey et al., 2004A&A...420.1171L) we gave the equations of the dynamical model. Here we present the fit of this model to the observations, covering more than one century starting from 1891. Our ephemerides, based on this first fit called L1, are available on the web page of the IMCCE at the URL http://www.imcce.fr/ephemeride_eng.html . File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table4.dat 83 32 Mean and standard deviation on right ascension and declination for each satellite table5.dat 77 33 Linear correction for positions table6.dat 77 33 Linear correction for velocities table7.dat 59 33 Linear correction for the parameters tables.tex 92 303 LaTeX version of the tables
See also: http://www.imcce.fr/ephemeride_eng.html : Ephemerides server Home Page J/A+A/314/312 : Galilean satellites mutual events in 1997 (Arlot 1996) J/A+A/383/719 : Galilean Satellites mutual events 2002-2003 (Arlot, 2002) Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 35 A35 --- Obs Observations 37- 44 F8.5 arcsec nuRA Mean deviation on right ascension (να) 46- 52 F7.5 arcsec sRA Standard deviation on right ascension (σα) 54- 61 F8.5 arcsec nuDE Mean deviation on declination (νδ) 63- 69 F7.5 arcsec sDE Standard deviation on declination (σδ) 71- 74 I4 --- Nobs Number of observations used by the satellite 76- 83 A8 --- Sat Satellite name
Byte-by-byte Description of file: table5.dat
Bytes Format Units Label Explanations
1- 5 A5 --- Param Parameter 7- 11 F5.2 --- x1 Linear correction for x1 parameter 13- 17 F5.2 --- y1 Linear correction for y1 parameter 19- 23 F5.2 --- z1 Linear correction for z1 parameter 25- 29 F5.2 --- x2 Linear correction for x2 parameter 31- 35 F5.2 --- y2 Linear correction for y2 parameter 37- 41 F5.2 --- z2 Linear correction for z2 parameter 43- 47 F5.2 --- x3 Linear correction for x3 parameter 49- 53 F5.2 --- y3 Linear correction for y3 parameter 55- 59 F5.2 --- z3 Linear correction for z3 parameter 61- 65 F5.2 --- x4 Linear correction for x4 parameter 67- 71 F5.2 --- y4 Linear correction for y4 parameter 73- 77 F5.2 --- z4 Linear correction for z4 parameter
Byte-by-byte Description of file: table6.dat
Bytes Format Units Label Explanations
1- 5 A5 --- Param Parameter 7- 11 F5.2 --- vx1 Linear correction for vx1 parameter 13- 17 F5.2 --- vy1 Linear correction for vy1 parameter 19- 23 F5.2 --- vz1 Linear correction for vz1 parameter 25- 29 F5.2 --- vx2 Linear correction for vx2 parameter 31- 35 F5.2 --- vy2 Linear correction for vy2 parameter 37- 41 F5.2 --- vz2 Linear correction for vz2 parameter 43- 47 F5.2 --- vx3 Linear correction for vx3 parameter 49- 53 F5.2 --- vy3 Linear correction for vy3 parameter 55- 59 F5.2 --- vz3 Linear correction for vz3 parameter 61- 65 F5.2 --- vx4 Linear correction for vx4 parameter 67- 71 F5.2 --- vy4 Linear correction for vy4 parameter 73- 77 F5.2 --- vz4 Linear correction for vz4 parameter
Byte-by-byte Description of file: table7.dat
Bytes Format Units Label Explanations
1- 5 A5 --- Param Parameter 7- 11 F5.2 --- J2 Linear correction for J2 parameter 13- 17 F5.2 --- J4 Linear correction for J4 parameter 19- 23 F5.2 --- m0 Linear correction for m0 parameter 25- 29 F5.2 --- m1 Linear correction for m1 parameter 31- 35 F5.2 --- m2 Linear correction for m2 parameter 37- 41 F5.2 --- m3 Linear correction for m3 parameter 43- 47 F5.2 --- m4 Linear correction for m4 parameter 49- 53 F5.2 --- psi Linear correction for ψ parameter 55- 59 F5.2 --- I Linear correction for I parameter
Acknowledgements: Valery Lainey, Valery.LAINEY(at)oma.be
(End) Patricia Vannier [CDS] 26-Oct-2004
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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