2002A&A...391..775S


C.D.S. - SIMBAD4 rel 1.7 - 2020.10.25CET10:08:42

2002A&A...391..775S - Astronomy and Astrophysics, volume 391, 775-779 (2002/8-4)

Astrometry of five major Uranian satellites in 1995-1997.

SHEN K.X., QIAO R.C., HARPER D., HADJIFOTINOU K.G. and LIU J.R.

Abstract (from CDS):

At the oppositions of 1995-1997, a total of 122 CCD frames were taken on the 1.56m astrometric telescope at the Sheshan station, yielding 864 positions of the major Uranian satellites. The calibration of the images was carried out using a least-squares iterative program by fitting to the well-known orbits of the brighter moons of Uranus, based on the modern theory GUST86 and an ephemeris produced by numerical integration. The residuals lay between 0.03" and 0.05" for each of the inter-satellite positions, except for the innermost and faintest satellite Miranda, whose residuals exceeded 0.08" due to the proximity of Uranus. No significant systematic errors were found when using satellites themselves for determining calibration parameters. The largest residual in the comparison between GUST86 and the numerical integration was about 0.01".

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Journal keyword(s): planets and satellites: general

VizieR on-line data: <Available at CDS (J/A+A/391/775): tablea1.dat table2.dat + figures>

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