The Laser Interferometer Space Antenna (LISA) mission is a planned NASA-ESA gravitational wave detector consisting of three spacecraft in heliocentric orbit. Lasers are used to measure distance fluctuations between proof masses aboard each spacecraft to the picometer level over a 5 million kilometer separation. Each spacecraft and its two laser transmit/receive telescopes must be held stable in pointing to less than 8 nanoradians per root Hertz in the frequency band 0.1-100 mHz. The pointing error is sensed in the received beam and the spacecraft attitude is controlled with a set of micro-Newton thrusters. Requirements, sensors, actuators, control design, and simulations are described.
Precision Pointing for the Laser Interferometry Space Antenna Mission
2003 AAS Guidance and Control Copnference
2003-01-01
Preprint
No indication
English
Precision Pointing for the Laser Interferometry Space Antenna Mission (AAS 03-066)
British Library Conference Proceedings | 2003
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