PROCEEDINGS ARTICLE | July 11, 2008
Proc. SPIE. 7014, Ground-based and Airborne Instrumentation for Astronomy II
KEYWORDS: Telescopes, Mirrors, Digital signal processing, Clocks, Stars, Wavefront sensors, Charge-coupled devices, Image storage, Camera shutters, Global Positioning System
HIPO is a special purpose instrument for SOFIA, the Stratospheric Observatory For Infrared Astronomy. It is a high-speed,
imaging photometer that will be used for a variety of time-resolved precise photometry observations, including
stellar occultations by solar system objects and transits by extrasolar planets. HIPO will also be used during the test
program for the SOFIA telescope, a process that began with a series of ground-based tests in 2004. The HIPO
requirements, optical design, overall description, and an early look at performance and planned data acquisition modes
have appeared in earlier papers (e.g. Dunham, et al., Proc. SPIE 5492, 592-603 (2004)). This paper provides an update
to the instrument description, final lab measurements of instrument performance, and a discussion of the data produced
by the various observing modes.
