The Infrared Space Observatory (ISO)

Details The Infrared Space Observatory (ISO) The Infrared Space Observatory (ISO)

Jul 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992ssrv...61...45k&link_type=abstract

Space Science Reviews (ISSN 0038-6308), vol. 61, no. 1-2, p. 45-60.

Astronomy and Astrophysics

Astronomy

6

European Space Agency, Infrared Astronomy, Infrared Space Observatory (Iso), Cryogenic Cooling, Ground Stations, Infrared Astronomy Satellite, Liquid Helium

Scientific paper

The Infrared Space Observatory (ISO), a fully approved and funded project of ESA, will operate at wavelengths from 3-200 microns. The satellite essentially consists of a large cryostat containing about 2300 litres of superfluid helium to maintain the telescope and the scientific instruments at temperatures between 2 K and 8 K. A pointing accuracy of a few arcseconds is provided by a three-axis-stabilization system. ISO's instrument complement consists of four instruments, namely: an imaging photopolarimeter (3-200 microns), a camera (3-17 microns), a short wavelength spectrometer (3-45 microns) and a long wavelength spectrometer (45-180 microns). ISO's scheduled launch date is May 1993 and it will be operational for at least 18 months.

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