Saturn's pole - geometric correction based on voyager UVS and radio occultations

Details Saturn's pole - geometric correction based on voyager UVS and radio occultations Saturn's pole - geometric correction based on voyager UVS and radio occultations

Oct 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983aj.....88.1531s&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 88, Oct. 1983, p. 1531-1536. NASA-supported research.

Astronomy and Astrophysics

Astronomy

25

Astrometry, Geometric Rectification (Imagery), Saturn (Planet), Saturn Rings, Astronomical Coordinates, Polar Coordinates, Radio Occultation, Ultraviolet Spectrometers, Voyager 1 Spacecraft

Scientific paper

Measurements of of the opacity of Saturn's rings acquired during occultation experiments at radio (3.6 cm) and ultraviolet wavelengths were initially reduced to radial position rho using a standard pole vector. Common features in the two data sets from this reduction were offset by distances Delta rho(i). These offsets have been attributed to an error in the pole direction. Because the viewing geometries were quite different for the two experiments, the set of differences of Delta rho(i) provides a sensitive measure of corrections needed to refine the Saturn pole direction. The new standard pole vector in 1950.0 coordinates has right ascension alpha = 38.409 + or - 0.016 deg and declination delta = 83.324 + or - 0.002 deg.

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