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Meeting	ACGS Committee Meeting 97 - Tahoe - March 2006
Agenda Location	5 SUBCOMMITTEE B - MISSILES AND SPACE 5.3 The Inertial Stellar Compass
Title	The Inertial Stellar Compass
Presenter	Tye Brady and Sean Buckley
Affiliation	Draper Laboratory
Available Downloads*	presentation
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Abstract	Draper’s Inertial Stellar Compass (ISC) is a real-time, miniature, low power stellar inertial attitude determination system, composed of a wide field-of-view active pixel sensor (APS) star camera and a microelectromechanical system (MEMS) gyro assembly, with associated processing and power electronics. The integrated APS and MEMS gyro technologies provide a 3-axis attitude determination system with an accuracy of 0.1 degree at very low power and mass. The attitude knowledge provided by the ISC is applicable to a wide range of Space and Earth science missions that may include the use of highly maneuverable, stabilized, tumbling, or lost spacecraft. Under the guidance of NASA’s New Millennium Program’s ST-6 project, Draper is developing the ISC. Its completion and flight validation will represent a breakthrough in real-time, miniature attitude determination sensors. The presentation describes system design, development, and validation activities in progress at Draper.