The CONTOUR remote imager and spectrometer (CRISP)

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

doi:10.1117/12.506237

10 February 2004 The CONTOUR remote imager and spectrometer (CRISP)

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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Proceedings Volume 5163, Instruments, Methods, and Missions for Astrobiology VII; (2004) https://doi.org/10.1117/12.506237
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

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.

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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, and Paul Wilson "The CONTOUR remote imager and spectrometer (CRISP)", Proc. SPIE 5163, Instruments, Methods, and Missions for Astrobiology VII, (10 February 2004); https://doi.org/10.1117/12.506237

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KEYWORDS

Space operations

Mirrors

Comets

Spectroscopy

Imaging systems

Charge-coupled devices

Image processing

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