Contents.
planet: 6 - Saturn
satellites: S12-Helene : 53,
S13-Telesto : 32,
S14-Calypso : 39
total number: 124
type: relative
dates: 1995-1996
observatory: 874 - Itajuba (Laboratorio Nacional de Astrofisica, Brazil)
Reference.
Veiga C. H., Vieira Martins R., Vienne A., Thuillot W., Arlot J.-E. (2003)
CCD astrometric observations of Saturnian satellites.
Astronomy and Astrophysics. V. 400. P. 1095-1101.
2003A&A___400_1095V
Informations.
relative to: S3-Tethys : 10
S5-Rhea : 114
reference frame: astrometric
centre of frame: geocentre
epoch of equinox: J2000
time scale: UTC
reduction: see reference
coordinates: X, Y
diff. refraction: removed
receptor: CCD
telescope: 1.6 m Ritchey-Chretien reflector, F=15.8 m.
observers: Veiga C. H., Vieira Martins R.
data included in standard data file: no
Comments.
Format.
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Bytes Format Units Label Explanations
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1- 3 I3 --- Opp Opposition year code number
(1=1874 to 122=1999)
5- 8 I4 yr Obs.Y Year of Observation
10- 11 I2 --- Obs.M Month of observation
13- 22 F10.7 d Obs.D UTC date of observation (DD.ddddddd)
24- 29 F6.3 s TT-UTC TT-UTC to the nearest tenth of second
31- 33 I3 --- Obs [874] Observatory code
(Laboratorio Nacional de Astrofisica, Brazil)
35- 37 I3 --- Ref [303] Reference code catalog (we have chosen
303 for the present observations)
39 I1 --- ObsType [0/1] Observation type
0=RA, DE; 1={Delta}RA*cosDE, {Delta}DE (1)
41- 43 A3 --- Objs Subject satellite, reference satellite (2)
45 I1 --- f_Obs1 [1] Flag of presence of the first coordinate
46 I1 --- f_Obs2 [1] Flag of presence of the second coordinate
49- 60 F12.7 --- Obs1 First coordinate (3)
63- 74 F12.7 --- Obs2 Second coordinate (3)
76 I1 --- Sys [0/2] Reference system (4)
78 I1 --- Frame [0/2] Reference frame (5)
80- 86 F7.3 arcsec O-C1 ?=999.999 First residual of observations
computed with TASS1.7 (6)
88- 94 F7.3 arcsec O-C2 ?=999.999 Second residual of observations
computed with TASS1.7 (6)
97 I1 --- Nsat Number of the satellite used as reference in
the computation of O-C (2)
100 I1 --- n_NSerie [0/1] 0 for no meaning and 1 when the frame was
not used in the computation of the scale and
the direction of the series
102-103 I2 --- NSerie Number of the series, the scale and orientation
are the same for all observations of one series
105-113 F9.3 pix Xpos ?=99999.999 Original X coordinate
115-123 F9.3 pix Ypos ?=99999.999 Original Y coordinate
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Note (1): Observation type:
0: RA, DE
1: {Delta}RA*cosDE, {Delta}DE
2: {Delta}RA, {Delta}DE
3: position angle, separation
Note (2): Satellite numbers:
0 for Saturn,
1 to 8 for S1 to S8, 12 for Helene, 13 for Telesto, 14 for Calypso,
C for the center of the plate which is not a physical object.
Note (3): Obs1 and Obs2 are in arcsec but in degree when Sat = C*
When Obstype=0, Obs1=RA, Obs2=DE
When ObsType=1, Obs1={Delta}RA*cosDE,Obs2={Delta}DE
Note (4): Reference system code:
0: mean equator and equinox B1950,
1: true equator and equinox of date of observation,
2: mean equator and equinox of J2000
Note (5): Reference frame code:
0: topocentric,
1: geocentric,
2: heliocentric
Note (6): Residuals of observations:
999.999 when the residuals are not computed
888.888 when the residuals are greater than 100 in absolute value
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