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Proceedings Paper

The CONTOUR remote imager and spectrometer (CRISP)
Author(s): Jeffery W. Warren; Kevin J. Heffernan; Steven J. Conard; James F. Bell; Anita L. Cochran; John D. Boldt; Alice F. Bowman; E. Hugo Darlington; Anthony Deluzio; Daniel Fiore; Dennis E. Fort; David Garcia; Matthew P. Grey; Bruce L. Gotwols; Ann P. Harch; John R. Hayes; Gene A. Heyler; Linda M. Howser; David C. Humm; Noam R. Izenberg; Kris E. Kosakowski; W. Jeffrey Lees; D. A. Lohr; Holger M. Luther; Douglas S. Mehoke; Scott L. Murchie; R. Alan Reiter; Brian Rider; G. D. Rogers; Deepak Sampath; Edward D. Schaefer; Thomas S. Spisz; Kim Strohbehn; Scott Svenson; Howard W. Taylor; Patrick L. Thompson; Joseph Veverka; Robert L. Williams; Paul Wilson
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Paper Abstract

The CONTOUR Remote Imager and Spectrometer (CRISP) was a multi-function optical instrument developed for the Comet Nucleus Tour Spacecraft (CONTOUR). CONTOUR was a NASA Discovery class mission launched on July 3, 2002. This paper describes the design, fabrication, and testing of CRISP. Unfortunately, the CONTOUR spacecraft was destroyed on August 15, 2002 during the firing of the solid rocket motor that injected it into heliocentric orbit. CRISP was designed to return high quality science data from the solid nucleus at the heart of a comet. To do this during close range (order 100 km) and high speed (order 30 km/sec) flybys, it had an autonomous nucleus acquisition and tracking system which included a one axis tracking mirror mechanism and the ability to control the rotation of the spacecraft through a closed loop interface to the guidance and control system. The track loop was closed using the same images obtained for scientific investigations. A filter imaging system was designed to obtain multispectral and broadband images at resolutions as good as 4 meters per pixel. A near IR imaging spectrometer (or hyperspectral imager) was designed to obtain spectral signatures out to 2.5 micrometers with resolution of better than 100 meters spatially. Because of the high flyby speeds, CRISP was designed as a highly automated instrument with close coupling to the spacecraft, and was intended to obtain its best data in a very short period around closest approach. CRISP was accompanied in the CONTOUR science payload by CFI, the CONTOUR Forward Imager. CFI was optimized for highly sensitive observations at greater ranges. The two instruments provided highly complementary optical capabilities, while providing some degree of functional redundancy.

Paper Details

Date Published: 10 February 2004
PDF: 15 pages
Proc. SPIE 5163, Instruments, Methods, and Missions for Astrobiology VII, (10 February 2004); doi: 10.1117/12.506237
Show Author Affiliations
Jeffery W. Warren, Johns Hopkins Univ. (United States)
Kevin J. Heffernan, Johns Hopkins Univ. (United States)
Steven J. Conard, Johns Hopkins Univ. (United States)
James F. Bell, Cornell Univ. (United States)
Anita L. Cochran, Univ. of Texas at Austin (United States)
John D. Boldt, Johns Hopkins Univ. (United States)
Alice F. Bowman, Johns Hopkins Univ. (United States)
E. Hugo Darlington, Johns Hopkins Univ. (United States)
Anthony Deluzio, SSG Precision Optronics, Inc. (United States)
Daniel Fiore, SSG Precision Optronics, Inc. (United States)
Dennis E. Fort, Johns Hopkins Univ. (United States)
David Garcia, SSG Precision Optronics, Inc. (United States)
Matthew P. Grey, Johns Hopkins Univ. (United States)
Bruce L. Gotwols, Johns Hopkins Univ. (United States)
Ann P. Harch, Cornell Univ. (United States)
John R. Hayes, Johns Hopkins Univ. (United States)
Gene A. Heyler, Johns Hopkins Univ. (United States)
Linda M. Howser, Johns Hopkins Univ. (United States)
David C. Humm, Johns Hopkins Univ. (United States)
Noam R. Izenberg, Johns Hopkins Univ. (United States)
Kris E. Kosakowski, SSG Precision Optronics, Inc. (United States)
W. Jeffrey Lees, Johns Hopkins Univ. (United States)
D. A. Lohr, Johns Hopkins Univ. (United States)
Holger M. Luther, SSG Precision Optronics, Inc. (United States)
Douglas S. Mehoke, Johns Hopkins Univ. (United States)
Scott L. Murchie, Johns Hopkins Univ. (United States)
R. Alan Reiter, Johns Hopkins Univ. (United States)
Brian Rider, SSG Precision Optronics, Inc. (United States)
G. D. Rogers, Johns Hopkins Univ. (United States)
Deepak Sampath, SSG Precision Optronics, Inc. (United States)
Edward D. Schaefer, Johns Hopkins Univ. (United States)
Thomas S. Spisz, Johns Hopkins Univ. (United States)
Kim Strohbehn, Johns Hopkins Univ. (United States)
Scott Svenson, SSG Precision Optronics, Inc. (United States)
Howard W. Taylor, Johns Hopkins Univ. (United States)
Patrick L. Thompson, Johns Hopkins Univ. (United States)
Joseph Veverka, Cornell Univ. (United States)
Robert L. Williams, Johns Hopkins Univ. (United States)
Paul Wilson, Johns Hopkins Univ. (United States)

Published in SPIE Proceedings Vol. 5163:
Instruments, Methods, and Missions for Astrobiology VII
Richard B. Hoover; Alexei Yu. Rozanov, Editor(s)

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