Contents. planet: 7 - Uranus satellites: U1-Ariel : 7, U2-Umbriel : 7, U3-Titania : 7, U4-Oberon : 7 U5-Miranda : 2 total number: 30 type: relative dates: 2007-2007 observatory: F65 - Haleakala-Faulkes Telescope North Reference. Khovritchev M. Yu. (2009) Astrometric observations of the Uranian satellites with the Faulkes Telescope North in 2007 September Monthly Notices of the Royal Astronomical Society. V. 393. P. 1353–1358. 2009MNRAS_393_1353K Informations. relative to: center of mass of satellite images (see comments) reference frame: astrometric centre of frame: topocenter epoch of equinox: J2000 time scale: UTC reduction: 2MASS and USNO-B1.0 used as reference catalogues coordinates: X, Y diff. refraction: no information receptor: CCD telescope: Faulkes Telescope observers: Khovritchev M. Yu. data included in standard data file: no Comments. The center of mass of satellite images is defined in condition that the sum of X coorditates of all satellites which are present on the picture is equal to zero. And similary for Y coordinates. Note that two pictures contain on 5 satellites and five pictures contain on 4 satellites. The Two-Micron All-Sky Survey (2MASS) and USNO-B1.0 were used as reference catalogues. The DE405 (Standish 1998) and INPOP (Fienga et al. 2008) planetary theories and the GUST86 (Laskar & Jacobson 1987) and GUST06 (Emelyanov et al. 2006) satellite theories were applied to compute the O-C (see article). The satellites' positions obtained with respect to 2MASS are in better agreement with theories than the coordinates of the satellites determined with respect to USNO-B1.0. Format. 1. Number of satellite (N sat): 1 - U1, 2 - U2, 3 - U3, 4 - U4, 5 - U5 2. Year of observation 3. Month of observation 4. Day of observation with decimals (UTC) 5. X, arcsec, with USNO-B1.0 6. Y, arcsec, with USNO-B1.0 7. X, arcsec, with 2MASS 8. Y, arcsec, with 2MASS ----------------------------------------------------------- N Year day (UTC) X - USNO-B1.0 - Y X --- 2MASS --- Y sat Month arcsec arcsec arcsec arcsec -----------------------------------------------------------