Computer Science
Scientific paper
Jul 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991hst..prop.1290c&link_type=abstract
HST Proposal ID #1290
Computer Science
Hst Proposal Id #1290
Scientific paper
Uranus and Neptune will be observed with the FOS gratings G270H and G190H to provide spectra from 330 nm down to 180 nm, the lower limit being determined by the noise in the background scattered light within the FOS. Target acquisition will be accomplished through on-board ACQs of planetary satellites. The center of each planet will be targeted. Two apertures will be used, the 1.0 to get maximum throughput with reasonable spectral resolution, and the 0.25x2.0 to achieve better spectral resolution. The latter will achieve poor S/N at the shorter wavelength end of the G190H. Scientific objectives include C2H2 abundance and vertical distribution in both planets, aerosol properties, Raman scattering and trace molecular species.
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