J/A+AS/107/559 J/A+AS/107/559 Position of Uranian satellites C H Veiga R Vieira Martins Astron. Astrophys. Suppl. Ser. 107 559 1994 1994A&AS..107..559V astrometry planets and satellites: individual (satellites of Uranus) Positions of Uranian satellites from 333 photographic plates obtained at the Cassegrain focus of a 1.6 m reflector are given for the oppositions of 1983 through 1988. These positions were reduced using photometric methods and compared with those calculated theoretically calculated from GUST86. The observed minus calculated residuals referred to Oberon, have standard deviations of the order of 0".04 for the four greatest Uranian satellites and 0".09 for Miranda. These residuals for the four satellites are better than the most precise found in the literature.

Np plate number --- Obsy Observing date UTC (year) yr Obsm Observing date UTC (month) --- Obsd Observing date UTC (day) d Ns Satellite number number=1 Satellite number: 5: Miranda, 1: Ariel, 2: Umbriel, 3: Titania --- X X = DELTA(alpha)cos(delta); equatorial coordinate 1950.0 referred to Oberon arcsec Y Y = DELTA(delta); equatorial coordinate 1950.0 referred to Oberon arcsec Patricia Bauer CDS 1994Jun03 J_A+AS_107_559.xml