Contents.
planet: 6 - Saturn
satellites: S1-Mimas : 216
S2-Enceladus: 865
S3-Tethys : 2151
S4-Dione : 1466
S6-Titan : 460
S7-Hiperion : 324
S8-Iapetus : 524
total number: 6006
type: relative
dates: 1995-1995
observatory: 874 - Itajuba
Reference.
Vienne A., Thuillot W., Veiga C.H. et al (2001)
Saturnian satellite observations made in Brazil during the 1995
opposition with an astrometric analysis.
Astronomy and Astrophysics. V. 380. P. 727.
2001A&A___380__727V
Informations.
relative to: S4-Dione : 436
S5-Rhea : 4196
S6-Titan : 1374
reference frame: astrometric
centre of frame: geocentre
epoch of equinox: J2000
time scale: UTC
reduction: see reference
coordinates: X, Y
diff. refraction: no information
receptor: CCD
telescope: Ritchey-Chretien reflector, D=1.6 m, F=15.8 m
observers: Veiga C.H.
data included in standard data file: no
Comments.
Format.
In a FORTRAN code, one line is read with the format:
(i3,i5,i3,f11.7,f7.3,2i4,i2,1x,a2,a1,i2,i1,
2(1x,f13.7),2i2,2(1x,f7.3),3i3,2f10.3)
The meanings of each parameter can be found in (Strugnell & Taylor
1990), but we recall them below with eventually, in parenthesis,
the differences with the original meaning:
* opp: opposition number, 1=1874 to 118=1995.
* year,m,utc: year, month and utc date of the observation (one more
digit for utc: f11.7)
* tt-utc: TT-UTC in seconds (two more digits: f7.3)
* obs: UAI observatory code from the Minor Planet Center,
* ref: reference code of the catalog (we have chosen 301 for the present
observations)
* t.: observation type.
0=\alpha, \delta,
1=\Delta \alpha \cos \delta, \Delta \delta,
2=\Delta \alpha,\Delta \delta,
3=position angle, separation
* obj.: subject satellite, reference satellite. 0 for Saturn, 1 to
8 for S1 to S8 (* when there is no reference satellite that is for
observation type 0 , C for the center of the plate which is not
a physical object)
* fl.: flags of presence of the first and second coordinates
* obs1, obs2 : first and second coordinates (one more digit, it is
0 when the coordinate is not present, see fl.)
* s: reference system. 0=mean equator and equinox B1950, 1=true equator
and equinox of date of observation, 2=mean equator and equinox of
J2000
* f: reference frame. 0=topocentric, 1=geocentric, 2=heliocentric
* o-c1, o-c2: residuals of observations in arc-seconds (computed with
TASS1.7 and with the format f7.3, it is 999.999 when the residuals
are not computed and it is 888.888 when the residuals are greater
than 100. in absolute value).
* (r: the number of the satellite used as reference in the computation
of o-c)
* (-: no meaning in this series, index reserved)
* (s: the number of the series, the scale and orientation are the same
for all the observations of one series).
* (xpix,ypix: original coordinates in pixels)
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