The application of lissajous orbits for the SIRTF mission

Details The application of lissajous orbits for the SIRTF mission The application of lissajous orbits for the SIRTF mission

Aug 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992asdy.conf.1229l&link_type=abstract

IN: Astrodynamics 1991; Proceedings of the AAS/AIAA Astrodynamics Conference, Durango, CO, Aug. 19-22, 1991. Pt. 2 (A92-43251 18

Astronomy and Astrophysics

Astronomy

Lissajous Figures, Low Thrust Propulsion, Orbit Insertion, Orbital Maneuvers, Space Infrared Telescope Facility, Hybrid Propulsion, Libration, Trajectory Control

Scientific paper

A lissajous orbit about L2 provides an ideal observation geometry for the SIRTF mission. To avoid contamination, the baseline SIRTF spacecraft uses a low thrust helium cold gas propulsion system. Three types of maneuvers are required for the L2 mission: trajectory correction maneuvers (TCM), lissajous orbit insertion maneuver (LOI), and orbit maintenance maneuvers (OMM). Analysis shows a total thrust level of 0.1 N is sufficient to achieve LOI and the smaller OMMs. Rough estimates indicate thrst level greater than 1N is needed to perform the TCMs. A hybrid hydrazine/cold gas propulsion system provides a possible solution.

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