Acceleration disturbances and requirements for ASTROD I
arXiv:gr-qc/0506012 · doi:10.1088/0264-9381/23/13/008
Abstract
ASTRODynamical Space Test of Relativity using Optical Devices I (ASTROD I) mainly aims at testing relativistic gravity and measuring the solar-system parameters with high precision, by carrying out laser ranging between a spacecraft in a solar orbit and ground stations. In order to achieve these goals, the magnitude of the total acceleration disturbance of the proof mass has to be less than 10−13 m s−2 Hz−1/2 at 0.1 m Hz. In this paper, we give a preliminary overview of the sources and magnitude of acceleration disturbances that could arise in the ASTROD I proof mass. Based on the estimates of the acceleration disturbances and by assuming a simple controlloop model, we infer requirements for ASTROD I. Our estimates show that most of the requirements for ASTROD I can be relaxed in comparison with Laser Interferometer Space Antenna (LISA).
19 pages, two figures, accepted for publication by Class. Quantum Grav. (at press)
References in corpus (3)
Cited by in corpus (6)
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- ASTROD I Charging Simulation and Disturbances
- Simulation of ASTROD I test mass charging due to solar energetic particles
- Current prospects for ASTROD Inertial Sensor