Contents.
planet: 6 - Saturn
satellites: S9-Phoebe : 64
total number: 64
type: absolute
dates: 1998-1999
observatory: 511 - Haute Provence
Reference.
Fienga A., Arlot J.-E., Baron N., Bec-Borsenberger A., Crochot A.,
Emelyanov N., Thuillot W. (2002)
CCD observations of Phoebe, 9th satellite of Saturn.
Astronomy & Astrophysics. V. 391. P. 767-773.
2002A&A___391__767F
Informations.
relative to: absolute
reference frame: astrometric
centre of frame: topocentre
epoch of equinox: J2000
time scale: UTC
reduction: Catalogue ICRF
coordinates: absolute
diff. refraction: no information
receptor: CCD
telescope: Reflector, D=120 cm, F=7 m.
observers: Fienga A., Arlot J.-E., Baron N., Crochot A.,
Emelyanov N., Thuillot W.
data included in standard data file: no
Comments.
We used the USNO A2 catalogue
of stars for the astrometric reduction. With the help
of observations of optical counterparts of ICRF sources, a zonal
correction to the USNO A2.0 catalogue was computed and applied to the
Phoebe positions.
Topocentric ICRF J2000 Phoebe positions reduced from CCD observations
realised with the 1.2m of the OHP Observatory. The positions proposed
in the following table is corrected from a systematic effect
introduced by the USNO A2.0 reference stars. This correction was
estimated after ICRF optical counterparts observations (Fienga and
Andrei, 2002, A&A, submitted)
Some observations published by Fienga et al. were excluded since they were later refined and republished in Gomes-Junior A. R. et al. (2015)
Astrometric positions for 18 irregular satellites of giant planets from 23 years of observations.
Astronomy and Astrophysics. V. 580. P. A76
Format.
1. Year of the moment of observation
2. Month of the moment of observation
3. Day of the moment of observation with decimals
4. Hour of right ascension (alpha, h)
5. Minute of right ascension (alpha, m)
6. Second of right ascension (alpha, s)
7. Degree of declination (delta, deg)
8. Minute of declination (delta, ' )
9. Second of declination (delta, '' )
---------------------------------------------
Year alpha delta
month
day h m s deg ' ''
---------------------------------------------