urn:nasa:pds:context:instrument:irtf-maunakea.3m2.cvf 1.0 1.16.0.0 Product_Context urn:nasa:pds:context:instrument:irtf.3m0.cvf 2021-12-07 1.0 per RMS, deprecated irtf in favor of irtf-maunakea urn:nasa:pds:context:telescope:irtf-maunakea.3m2 instrument_to_telescope Bugayevskiy, L.M., and J.P. Snyder, Map projections: A reference manual, Taylor & Francis, London and Bristol, Pennsylvania, 328 pp., 1995. Circularly Variable Filter Photometer Instrument Overview =================== This document describes the instrument used to obtain the infrared spectrum of 951 Gaspra reported in Goldader et al. 1991, A. J. 102, 1503-1509 [GOLDADERETAL1991]. The instrumentation consisted of a double CVF with a liquid nitrogen cooled InSb photometer. The short half of the CVF (denoted DCS) covered the region from ~0.8 - 1.6 microns with 3% resolution, and the long half (denoted DCL) covered ~1.5 - 2.5 microns at 5% resolution. For this spectrum, every other position of the CVF was sampled for the DCS data.null