Abstract
The results of astrometric CCD observations of two major moons of Uranus (Oberon and Titania) with the Normal Astrograph (D/F = 0.33 m/3.5 m; CCD S2C with a FOV of 18′ × 16′) at the Pulkovo Observatory are presented. The observations were conducted in 2008–2011. The CCD image reduction is based on the Turner method with a reference to the UCAC3 catalogue system. The (O–C) values are calculated with the use of the MULTI-SAT server for the ephemerides of planetary moons. The obtained equatorial coordinates are compared to two modern theories of planetary motion: INPOP10 + Lainey (2008) and DE421/LE421 + Lainey (2008). The observations agree well with both theories.
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