Contents. planet: 7 - Uranus satellites: U1-Ariel : 17 U2-Umbriel: 17 U3-Titania: 22 total number: 56 type: relative dates: 1966-1966 observatory: 695 - Kitt Peak 693 - Catalina Station, Tucson Reference. van Biesbroeck G., Vesely C.D., Aksnes K., Marsden B.G. (1976) Observations of comets, minor planets, Pluto, and satellites. Astronomical Journal. V. 81. P. 122-124. 1976AJ_____81__122V Informations. relative to: U4-Oberon reference frame: astrometric centre of frame: topocentre epoch of equinox: B1950 time scale: UTC reduction: no information coordinates: differential diff. refraction: no information receptor: photographic telescope: 695 - Reflector, D=213 cm 693 - Reflector, D=154 cm observers: van Biesbroeck G., Measurer: Vesely C.D. data included in standard data file: no Comments. no information Format. 1. Year of the moment of observation 2. Month of the moment of observation 3. Day of the moment of observation with decimals 4. Number of satellite 5. delta of right ascension (s) 6. delta of declination (arcsec) 7. Number of exposures 8. Number of observatory (N obs) ---------------------------------------------- Year delta delta month N (alpha)(delta) N N day sat s '' exp obs ----------------------------------------------