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
01.01.2003
Preprint
Keine Angabe
Englisch
Precision Pointing for the Laser Interferometry Space Antenna Mission (AAS 03-066)
British Library Conference Proceedings | 2003
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