Contents. planet: 7 - Uranus satellites: U1-Ariel : 474, U2-Umbriel : 462, U3-Titania : 558, U4-Oberon : 732, U5-Miranda : 476 total number: 2702 type: absolute dates: 1982-1991 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: geocenter epoch of equinox: J2000 time scale: UTC reduction: ICRF coordinates: absolute diff. refraction: no information receptor: CCD telescope: 0.6m Zeiss telescope 0.6m Boller&Chivens telescope 1.6m Perkin-Elmer telescope observers: Veiga C.H., Vieira Martins R., Andrei Alexandre H. 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. Julian date for the mean instant of the observation 3. Hour of right ascension 4. Minute of right ascension 5. Second of right ascension 6. Degree of declination 7. Arcminute of declination 8. Arcsecond of declination 9. Right ascension uncertainty Error(RA), mas 10. Declination uncertainty Error(Decl), mas 11. Right ascension geocentric to topocentric (multiplied by the cosine of the Declination). 12. Declination geocentric to topocentric ------------------------------------------------------------------------------- sat Date, JD R.A. - ICRF - Declination Error RAtop DEtop h m s deg ' '' (RA)mas (Decl)mas mas mas -------------------------------------------------------------------------------