Contents. planet: 7 - Uranus satellites: U2 Umbriel : 5, U3 Titania : 8, U4 Oberon : 7 total number: 20 type: absolute dates: 2005-2005 observatory: B05 - Ka-Dar Observatory, Barybino Reference. Izmailov I. S., Korotkii S. A., Ereshko M. V., Stepura A. V. (2007) Astrometric Observations of the Second, Third, and Fourth Satellites of Uranus. Solar System Research. V. 41. P. 42-45. 2007SoSyR__41___42I Informations. relative to: absolute reference frame: astrometric centre of frame: topocentre epoch of equinox: J2000 time scale: UTC reduction: UCAC2 star catalog coordinates: absolute diff. refraction: no information receptor: CCD telescope: Reflector, D=0.356 m observers: Izmailov I. S., Korotkii S. A., Ereshko M. V., Stepura A. V. data included in standard data file: no Comments. no information Format. 1. Number of satellite (N sat), 2-U2 Umbriel, ... 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 6. Minute of right ascension 7. Seconde of right ascension 8. Degree of declination 9. Arcmin of declination 10. Arcsec of declination --------------------------------------------------- N Year UTC alpha delta sat. month day with decimals h m s deg ' '' ---------------------------------------------------