Contents. planet: 7 - Uranus satellites: U20-Stephano :2 total number: 4 type: absolute dates: 2001-2001 observatory: 568 - Mauna Kea 807 - Cerro Tololo Observatory, La Serena Reference. MPC communication to NSDC - 05 Dec 2001 Informations. relative to: absolute reference frame: astrometric centre of frame: topocentre epoch of equinox: J2000 time scale: UTC reduction: no information coordinates: absolute diff. refraction: no information receptor: CCD telescope: 568 - Canada-France-Hawaii Telescope, D = 3.6 m 807 - Reflector, D = 4 m observers: 568 - J. Kavelaars J., Holman M., Petit J.-M., Gladman B. Measured Kavelaars J., Gladman B. 807 - Holman M., Kavelaars J., Measured by Gladman B. data included in standard data file: no Comments. Format. 1. Number of satellite (N sat) 2. Year of the moment of observation 3. Month of the moment of observation 4. Day of the moment of observation with decimals 5. Hour of right ascension (alpha, h) 6. Minute of right ascension (alpha, m) 7. Second of right ascension (alpha, s) 8. Degree of declination (delta, deg) 9. Minute of declination (delta, ' ) 10. Second of declination (delta, '' ) 11. Magnitude if available, 99.9 else (Mag) 12. Type of magnitude if available, X else (Type of mag) 13. N observatory, N telescope, N observer (N obs) ----------------------------------------------------------------- N Year UT alpha delta Type N sat. month day of obs with decimals h m s deg ' '' Mag mag -----------------------------------------------------------------