Patch effect in drag-free satelites
Open Access
- 6 June 2011
- conference paper
- Published by Sissa Medialab Srl
- Vol. 123, 253
Abstract
To compensate for the non-gravitational orbital disturbances drag free satellites monitor and control their position with respect to a reference body enclosed inside their structure. The body, shielded from the environment, follows a free fall trajectory when its motion can be ideally considered decoupled from that of the spacecraft. Lessons learned from Gravity Probe B and the design of the Satellite Test of the Equivalence Principle experiment strongly motivate the study of the force and torque between the reference body and the spacecraft due to uneven distributions of electrostatic potentials. Additional interest to that comes also from prospective space experiments as Microscope and the Laser Interferometer Space Antenna.Keywords
This publication has 13 references indexed in Scilit:
- The Science Case for STEPAdvances In Space Research, 2009
- Misalignment and Resonance Torques and Their Treatment in the GP-B Data Analysis2009
- Gravity Probe B data analysis status and potential for improved accuracy of scientific resultsClassical and Quantum Gravity, 2008
- The STEP mission: principles and baseline designClassical and Quantum Gravity, 2001
- Explicit Green’s function of a boundary value problem for a sphere and trapped flux analysis in Gravity Probe B experimentJournal of Applied Physics, 1999
- Forces and force gradients due to patch fields and contact-potential differencesClassical and Quantum Gravity, 1996
- Observations of the effects of adsorbates on patch potentialsJournal of Physics D: Applied Physics, 1992
- Macroscopic variations of surface potentials of conductorsJournal of Applied Physics, 1991
- The Drag-Free SatelliteAIAA Journal, 1964
- Anisotropy of the Electronic Work Function of MetalsPhysical Review B, 1941