Contents. planet: 6 - Saturn satellites: S1-Mimas : 15, S2-Enceladus :119, S3-Tethys :271, S4-Dione :212, S5-Rhea :255, S6-Titan :261, S7-Hyperion :192, S8-Iapetus :189 total number: 304 type: relative dates: 1995-1997 observatory: 950 - La Palma Reference. Harper D., Beurle K.,I.P.Williams, Murray C.D., Taylor D.B., Fitzsimmons A., Cartwright I.M. (1999) CCD astrometry of Saturn's satellites in 1995 and 1997 Astron. Astrophys. Suppl. Ser. V. 136. P. 257. 1999A&AS__136__257H Informations. relative to: Frame reference frame: astrometric centre of frame: geocentre epoch of equinox: no information time scale: UTC reduction: no information coordinates: CCD image pixels diff. refraction: no information receptor: CCD telescope: 1-metre Jacobus Kapteyn Telescope observers: Harper D., Beurle K.,I.P.Williams, Murray C.D., Taylor D.B., Fitzsimmons A., Cartwright I.M. data included in standard data file: no Comments. Total number: 304 (CCD frames) On the 304 lines of the data-file are put the 1514 positions of the satellites from the CCD frame. Individual files can be fetched directly from: ftp://cdsarc.u-strasbg.fr/cats/J/A+AS/136/257 The catalogue can be queried from: http://vizier.u-strasbg.fr/cgi-bin/VizieR?-source=J/A+AS/136/257 evaluation: From abstract: Analysis of the data as inter-satellite positions shows that the observations of Tethys, Dione, Rhea and Titan have root-mean-square residuals of 0.08 arc-seconds in 1995 and 0.10 arc-seconds in 1997. Format. Byte-by-byte Description of file: *dat.txt ----------------------------------------------------------------------------- Bytes Format Units Label Explanations ----------------------------------------------------------------------------- 1- 4 I4 yr OBS.Y Year of the observation (1) 6- 7 I2 "month" OBS.M Month of the observation (1) 9- 17 F9.6 d OBS.D Day of the observation (1) 19- 23 F5.1 s Exp Length of the exposure; 25- 32 8I1 --- Flags [0/1] Boolean flags indicating presence (1) or absence (0) of each satellite in the image 33- 40 F8.2 pix xiMimas ? Column coordinate xi of Mimas, if present 41- 48 F8.2 pix etaMimas ? Row coordinate eta of Mimas, if present 49- 56 F8.2 pix xiEnc ? Column coordinate xi of Enceladus,if present 57- 64 F8.2 pix etaEnc ? Row coordinate eta of Enceladus, if present 65- 72 F8.2 pix xiTethys ? Column coordinate xi of Tethys, if present 73- 80 F8.2 pix etaTethys ? Row coordinate eta of Tethys, if present 81- 88 F8.2 pix xiDione ? Column coordinate xi of Dione, if present 89- 96 F8.2 pix etaDione ? Row coordinate eta of Dione, if present 97-104 F8.2 pix xiRhea ? Column coordinate xi of Rhea, if present 105-112 F8.2 pix etaRhea ? Row coordinate eta of Rhea, if present 113-120 F8.2 pix xiTitan ? Column coordinate xi of Titan, if present 121-128 F8.2 pix etaTitan ? Row coordinate eta of Titan, if present 129-137 F9.2 pix xiHyp ? Hyperion {xi} column coordinate, if present 138-146 F9.2 pix etaHyp ? Hyperion {eta} row coordinate, if present 147-154 F8.2 pix xiIap ? Iapetus {xi} column coordinate, if present 155-162 F8.2 pix etaIap ? Iapetus {eta} row coordinate, if present ----------------------------------------------------------------------------- Note (1): U.T.C. time of the start of the exposure Note (2): Add half of this value to the start date to obtain the mid-exposure time ------------------------------------------------------------------------