Contents. planet: 7 - Uranus satellites: U1-Ariel : 264, U2-Umbriel : 264, U3-Titania : 264, U5-Miranda : 212 total number: 1004 type: relative dates: 1982-1985 observatory: 874 - Itajuba Reference. Veiga C. H., Vieira Martins R., Lazzaro D., Veillet C. (1987) Position observations of the five greatest Uranian satellites and comparison with theory. Astronomy and Astrophysics Supplement Series. V. 70. N. 3. P. 325-334. 1987A&AS___70__325V Informations. relative to: U4-Oberon reference frame: astrometric centre of frame: topocentre epoch of equinox: 1950 time scale: UTC reduction: Catalog Perth 70 coordinates: X, Y diff. refraction: no information receptor: photographic telescope: Ritchey-Chretien reflector, D=1.6 m observers: Veiga C. H., Vieira Martins R., Lazzaro D., Veillet C. data included in standard data file: no Comments. no information Format. 1. Number of plate (N plate) 2. Year of the moment of observation 3. Month of the moment of observation 4. Day of the moment of observation with decimals 5. Number of satellite 6. X, arcsec 7. Y, arcsec ----------------------------------------- N Year N X Y plate month day sat arcsec arcsec -----------------------------------------