Control system for the Terrestrial Planet Finder interferometer

Nelson Pedreiro; Thomas L. Trankle; Domenick J. Tenerelli

doi:10.1117/12.460859

26 February 2003 Control system for terrestrial planet finder interferometer

Nelson Pedreiro, Thomas L. Trankle, Domenick J. Tenerelli

Author Affiliations +

Proceedings Volume 4852, Interferometry in Space; (2003) https://doi.org/10.1117/12.460859
Event: Astronomical Telescopes and Instrumentation, 2002, Waikoloa, Hawai'i, United States

Abstract

The control system architecture and vibration mitigation approach for a Terrestrial Planet Finder (TPF) mission based on structurally connected interferometers are defined. The spacecraft configurations investigated and associated control and operational requirements are presented. Disturbance sources are identified and their relevance assessed. Results of dynamics analysis are presented, as well as a description of the dynamic models and simulations used to predict on-orbit performance. An assessment of the maturity of the technologies for control and vibration mitigation is provided. Analysis results indicate that pointing and path-length control requirements for a TPF mission based on structurally connected interferometers with baselines from 9 to 80 meters can be achieved using a conventional spacecraft attitude control system combined with active pointing and path-length control and a vibration mitigation approach that does not rely on structural damping.

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Nelson Pedreiro, Thomas L. Trankle, and Domenick J. Tenerelli "Control system for terrestrial planet finder interferometer", Proc. SPIE 4852, Interferometry in Space, (26 February 2003); https://doi.org/10.1117/12.460859

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