The UVISI instrument.

Details The UVISI instrument. The UVISI instrument.

Jun 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996jhatd..17..198h&link_type=abstract

Johns Hopkins APL Tech. Dig., Vol. 17, No. 2, p. 198 - 214

Computer Science

5

Spectrographs: Space Instrumentation

Scientific paper

The Ultraviolet and Visible Imagers and Spectrographic Imagers (UVISI) instrument is a complex of nine sensor units (five spectrographic imagers and four imagers) and multiple processors that will provide detailed images and spectra of targets for the Midcourse Space Experiment mission. Imaging and spectroscopy each cover the range from 110 nm (far ultraviolet) to 900 nm (near infrared). UVISI is intended to investigate a multitude of celestial, atmospheric, and point sources over its planned 4-year lifetime. At 104 W and 211 kg, it is not only the largest free-flying instrument ever built at APL, but is also larger than 47 of the 55 APL-built spacecraft and more complex than many of them. This article discusses the specifications of UVISI and its hardware and software features. It also attempts to give the reader a sense of the design trade-offs made during UVISI development that resulted in its present configuration.

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