Contents. planet: 6 - Saturn satellites: S1-Mimas : 54 S2-Enceladus: 161 S3-Tethys : 145 S4-Dione : 161 S5-Rhea : 145 S7-Hiperion : 121 S8-Iapetus : 126 total number: 913 type: relative dates: 1996-2000 observatory: 286 - Yunnan Observatory Reference. Peng Q., Vienne A., Shen K.X. Positional measuring procedure and CCD observations for Saturnian satellites. Astronomy and Astrophysics. V. 383. P. 296-301. 2002A&A___383__296P Informations. relative to: S5-Rhea : 216 S6-Titan : 697 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: Reflector, D = 1 m. observers: Peng Q., Vienne A., Shen K.X. data included in standard data file: no Comments. The calibrated parameters of the CCD scale and orientation are determined by the comparison of their measurement coordinates with computed positions of four bright satellites of Tethys, Dione, Rhea and Titan. Analysis of the data as inter-satellite positions shows that these observations of the above mentioned four satellites have root-mean-square residuals of 0.04 arcsec in the sense of (O-C) (Observed minus Computed). Format. -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 3 I3 --- Opp *Opposition number 5- 8 I4 yr Obs.Y *The year for observations 10- 11 I2 "month" Obs.M *Month for observations 13- 22 F10.7 d Obs.D *UTC date of observations 24- 29 F6.3 s TT-UTC TT-UTC difference 31- 33 A3 --- Obs [286] Observatory code from Minor Planet Center 35- 37 A3 --- Ref [302] Reference code of the catalog (here 302) 39 I1 --- ObsType *[0/1] Observation type 42- 43 A2 --- Obj *Subject satellite, reference satellite 45- 46 A2 --- Note *[0/1] The flag of presence of both coordinates 49- 60 F12.7 arcsec ObsRA The observed coordinates in Right Ascension 63- 74 F12.7 arcsec ObsDE The observed coordinates in Declination 76 I1 --- RefSys *[0/2] The reference system 78 I1 --- Frame [1] The reference frame. Here, 1=geocentric 80- 86 F7.3 arcsec O-CRA ?=999.999 Residuals of observations in Right Asension 88- 94 F7.3 arcsec O-CDE ?=999.999 Residuals of observations in Declination 97 I1 --- Rsat Reference satellite when o-c is computed 100 I1 --- --- [0] Index reserved 103 I1 --- NSer *The number of the series 105-113 F9.3 pix Xpos *?=99999.999 Original coordinate in X direction 115-123 F9.3 pix Ypos *?=99999.999 Original coordinate in Y direction -------------------------------------------------------------------------------- Note on Opp: Oppsition number. 119 for 1996 to 123 for 2000 Note on Obs.Y, Obs.M, Obs.D: The date is not light time corrected for the UTC Note on ObsType: 0 = alpha, delta 1 = Delta(alpha)cos(delta), Delta(delta) Note on Obj: 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 Note on Note: 0 = observation absent 1 = observation present Note on RefSys: 0 = mean equator and equinox B1950 1 = true equator and equinox of date of observation 2 = mean equator and equinox J2000 Note on NSer: 1,2,3 and 4 is for 1996, 1997, 1999 and 2000 series respectively. The scale and orientation are the same for all the observations of one series Note on Xpos, Ypos: Difference in raw pixel coordinate between subject satellite and reference satellite in X- anf Y-direction --------------------------------------------------------------------------------