Contents. planet: 7 - Uranus satellites: U1-Ariel :1710, U2-Umbriel :1987, U3-Titania :2588, U4-Oberon :2928, U5-Miranda : 584 total number: 9797 type: absolute dates: 1992-2011 observatory: 874 - Itajuba (Pico dos Dias Observatory) Reference. Camargo J.I.B., Magalhaes F.P. et al. (2015) Astrometry of the main satellites of Uranus: 18 years of observations Astronomy & Astrophysics. V. 582. P. A8. 2015A%26A___582A___8C Informations. relative to: absolute reference frame: astrometric centre of frame: topocenter epoch of equinox: J2000 time scale: UTC reduction: ICRF (UCAC4) coordinates: absolute diff. refraction: no information receptor: CCD telescope: 0.6m Zeiss telescope 0.6m Boller&Chivens telescope 1.6m Perkin-Elmer telescope observers: J.I.B. Camargo, F.P. Magalhaes, R. Vieira-Martins, M. Assafin, F. Braga-Ribas, A. Dias-Oliveira, G. Benedetti-Rossi, A.R. Gomes-Junior, A.H. Andrei, D.N. da Silva Neto data included in standard data file: no Comments. Some of the data published in Camargo J. et al. (2015) coincide with those published in 2003 by C. Veiga (The Astronomical Journal. Vol. 125. No. 5. P. 2714-2720) and available at um0007.txt. Such observations were excluded from um0007.txt. Format. 1. Index of satellite. 2. UTC instant of the satellite position (JD) 3. Observed topocentric hour of right ascension 4. Observed topocentric minute of right ascension 5. Observed topocentric second of right ascension 6. Observed topocentric degree of declination 7. Observed topocentric arcminute of declination 8. Observed topocentric arcsecond of declination 9. Error in right ascension (RA), mas 10. Error in declination (Decl), mas ----------------------------------------------------------- sat Date, JD R.A. - ICRS - Declination Error,mas h m s deg ' '' (RA)(Decl) -----------------------------------------------------------