Contents. planet: 7 - Uranus satellites: U1-Ariel : 14, U2-Umbriel : 5, U3-Titania : 12, U4-Oberon : 13 total number: 44 type: relative dates: 1990-1990 observatory: 123 - Byurakan Reference. Abrahamian H.V., Gigoian K., Kisselev A.A., Kisseleva T.P., Shakht N.A. (1993) Positional photographic observations of Saturn, Uranus, Neptune, their satellites and Pluto in 1990 with the telescope ZTA-2.6 m at Byurakan in Armenia. Astronomical and Astrophysical Transactions. V. 3. P. 279-285. 1993A&AT____3__279A Informations. relative to: planet reference frame: astrometric centre of frame: topocentre epoch of equinox: J2000 time scale: UTC reduction: Catalogue FOCAT-S (FK5, J2000) coordinates: X, Y diff. refraction: no information receptor: photographic telescope: ZTA, D=2.6 m, F= 10 m observers: Abrahamian H.V., Gigoian K., Kisselev A.A., Kisseleva T.P., Shakht N.A. data included in standard data file: no Comments. The data for 1990 Maj 30 are not correct 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. X, arcsec 6. Y, arcsec --------------------------------------- Year X Y month N day sat arcsec arcsec ---------------------------------------