Contents. planet: 6 - Saturn satellites: S1 - Mimas: 1 S2 - Enceladus: 9 S3 - Tethys: 14 S4 - Dione: 16 S5 - Rhea: 16 S6 - Titan: 16 S7 - Hyperion: 8 S8 - Iapetus: 12 total number: 92 type: absolute dates: 1987-1988 observatory: 286 - Yunnan Observatory 334 - Tsingtao Reference. Yan D., Qiao R. C., Dourneau G., Yu Y., Zhang H. Y., Cheng X., Xi X. J. (2016) Digitization and reduction of old astronomical plates of natural satellites. Monthly Notices of the Royal Astronomical Society. 2016. V. 457. Issue 3. P. 2900-2907. 2016MNRAS_457_2900Y Informations. relative to: absolute reference frame: astrometric center of frame: topocenter epoch of equinox: ICRF time scale: UTC reduction: UCAC4 coordinates: absolute diff. refraction: no information receptor: photographic telescope: see in the paper observers: Yan D., Qiao R. C., Dourneau G., Yu Y., Zhang H. Y., Cheng X., Xi X. J. data included in standard data file: no Comments. Some positions were obtained as new reduction of previously published results. See the paper. Format. 1. Number of satellite (N): 1 - S1, 2 - S2, ... 2. Year of the moment of observation 3. Month of the moment of observation 4. Day of the moment of observation with decimals 5. Right ascension (alpha), hours 6. Declination (delta), degrees 7. Observatory code ------------------------------------------------- N Year Day alpha delta Obs Month hours degrrees code -------------------------------------------------