1 September 1991 Station-keeping strategy for multiple-spacecraft interferometry
Author Affiliations +
Abstract
The feasibility of multiple spacecraft stationkeeping for submillimeter and optical interferometry is examined. A condition for interferometry is that two or more spacecraft must control their relative positions with better than 1 mn accuracy indefinitely in both radial and transverse directions although separated by as much as 1 Km in LEO and 100 Km in GEO. They must also maneuver through a useful area of the U-V plane of an arbitrary astronomical source. The problem is first outlined and a solution which utilizes gravity gradient forces to do most of the work and ion thrusters for additional maneuvering is proposed. All the perturbing forces are shown to be small compared to the ion thruster requirements. An inertial position and attitude control strategy is suggested which utilizes existing or soon to be available sensors and actuators. Finally, the fuel and power system mass requirements are estimated and found to be within reason for a 10 year mission.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Anthony B. DeCou, Anthony B. DeCou, } "Station-keeping strategy for multiple-spacecraft interferometry", Proc. SPIE 1494, Space Astronomical Telescopes and Instruments, (1 September 1991); doi: 10.1117/12.46750; https://doi.org/10.1117/12.46750
PROCEEDINGS
12 PAGES


SHARE
RELATED CONTENT

SIM-PlanetQuest: progress report
Proceedings of SPIE (June 27 2006)
Attitude control of a high-precision space interferometer
Proceedings of SPIE (September 22 1993)
Filled-arm Fizeau telescope
Proceedings of SPIE (August 31 1991)
Conceptual design of the TPF-O SC buses
Proceedings of SPIE (September 20 2007)

Back to Top