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J/A+A/311/710 Faint Jovian satellites ephemerides (Rocher+, 1996)
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Observations and ephemerides of the faint satellites of Jupiter
Rocher P., Chapront J.
<Astron. Astrophys. 311, 710 (1996)>
=1996A&A...311..710R (SIMBAD/NED BibCode)
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ADC_Keywords: Planets ; Ephemerides
Keywords: ephemerides - planets and satellites: Jupiter
Description:
The observations of the faint satellites of Jupiter J6, J7, J8 and J9
have been collected. Numerical integrations have been performed and
fitted to ancient and modern observations. Ephemerides of the
equatorial jovicentric rectangular coordinates of the satellites are
presented under the form of Poisson series, covering 150 years from
1900. Numerical tools (tables and softwares) are provided to the users
for a practical reconstruction of the ephemerides.
Author's Address:
P. Rocher, J. Chapront
Bureau des Longitudes, CNRS URA 707
77, avenue Denfert-Rochereau
75014, Paris, France
Tel : (33) 1 40 51 22 72 (33) 1 40 51 22 71
Fax : (33) 1 46 33 28 34
Mail : <rocher@bdl.fr> Jean.Chapront@bdl.fr
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3 98 518 Observations of J6
table4 98 225 Observations of J7
table5 98 335 Observations of J8
table6 98 116 Observations of J9
code 53 24 Observatory codes
emb.xyz 48 2155 Heliocentric equatorial rectangular coordinates
of the Earth-Moon barycenter (table9)
barycent.xyz 48 152 Geocentric equatorial rectangular coordinates
of the Earth-Moon barycenter (table10)
jupiter.xyz 48 459 Heliocentric equatorial rectangular coordinates
of Jupiter (table11)
j6.xyz 48 4076 Jovicentric equatorial coordinates of J6
(table12)
j7.xyz 48 5225 Jovicentric equatorial coordinates of J7
(table13)
j8.xyz 48 6317 Jovicentric equatorial coordinates of J8
(table14)
j9.xyz 48 3210 Jovicentric equatorial coordinates of J9
(table15)
satxjup.f 79 353 FORTRAN source program
faintsat.zip 512 4147 Binary file. Conversational software
(to be run under WINDOWS)
install.txt 79 46 Procedure of installation of faintsat.zip
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Byte-by-byte Description of file: table3, table4, table5, table6
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Bytes Format Units Label Explanations
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1- 3 I3 --- o_Obs Number of observations
6- 9 I4 yr OBSyr Date of observation in UT (year)
12- 13 I2 --- OBSm Date of observation in UT (month)
16- 24 F9.6 d OBSd Date of observation in UT (day)
28- 29 I2 h RAh Topocentric right ascension of observation
32- 33 I2 min RAm Topocentric right ascension of observation
36- 41 F6.3 s RAs Topocentric right ascension of observation
45 A1 --- DE- Declination sign
46- 47 I2 deg DEd Topocentric declination of observation
50- 51 I2 arcmin DEm Topocentric declination of observation
54- 58 F5.2 arcsec DEs Topocentric declination of observation
60 A1 --- l_O-Ca Limit flag on O-Ca
61- 65 F5.2 arcsec O-Ca Observed - Calculed alpha * cos(delta)
66 A1 --- n_O-Ca '*' = rejected observation in alpha
68 A1 --- l_O-Cd Limit flag on O-Cd
69- 73 F5.2 arcsec O-Cd Observed - Calculed delta
74 A1 --- n_O-Cd '*' = rejected observation in delta
79- 80 I2 --- Obs Observatory code (see file Code.txt)
85- 99 A15 --- Ref References of observation : code of
publication volume, page (see file Code.txt)
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Byte-by-byte Description of file: code
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Bytes Format Units Label Explanations
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1- 2 I2 --- Obs Observatory code
6- 21 A16 --- Name Observatory name
23- 31 F9.6 d L Geocentric longitude in fraction of day
(positive towards the west and
negative towards the east).
35- 42 F8.5 --- ro*sin(phi') ro * sin(phi') (1)
46- 53 F8.5 --- ro*cos(phi') ro * cos(phi') (1)
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Note (1): ro : radial geocentric distance
phi' : geocentric latitude.
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Explanations:
The program satxjup.f computes the geocentric positions of Jupiter
satellites J6, J7, J8, J9 for 10 values of the time (dynamical time)
with 5400 days step.
Starting Julian date = 2415020.5 (1900/Jan./10h).
The resulting values appear on the screen : geocentric rectangular
positions X, Y, Z (AU) of the satellites (equinox and equator J2000)
Courtesy: P. Rocher, J. Chapront, <rocher@bdl.fr>, <Jean.Chapront@bdl.fr>
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(End) Patricia Bauer [CDS] 01-Apr-1996