elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Contact | Deutsch
Fontsize: [-] Text [+]

Generic Drag-free Control Simulation – Lessons Learned from Gravity Probe B

Pelivan, Ivanka and Smoot, Sara and Hipkins, David and Theil, Stephan (2008) Generic Drag-free Control Simulation – Lessons Learned from Gravity Probe B. In: Proceedings of the 31th Annual AAS Guidance and Control Conference. 31th Annual AAS Guidance and Control Conference, 2008-02-01 - 2008-02-06, Breckenridge, Colorado (USA).

[img]
Preview
PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
2MB

Abstract

A generic drag-free simulator has been developed to aid in the design, on-orbit and post-mission data analysis phases of scientific satellite missions. Adaptable to missions as different in nature as Gaia (Global Astrometric Interferometer for Astrophysics) and STEP (Satellite Test of the Equivalence Principle), this simulator will provide necessary modeling capability to increasingly complex future missions. A complete mission software simulator including controls, full-body dynamics and comprehensive spacecraft environment disturbances has been established for Gravity Probe B (GP-B). Reproduction of the mission is being carried out to validate the simulator with actual flight data and refine the underlying models. The importance of this effort lies in the challenge to meet rising science requirements in the area of maximum disturbance rejection. Future missions such as Gaia, STEP, LISA (Laser Interferometer Space Antenna) and others require a minimum of 3 orders of magnitude improvement over the GP-B performance of 10<sup>–9</sup> m/sec<sup>2</sup>. While technology advancements will certainly be required to achieve these levels, it became increasingly clear to the scientists and engineers who delivered the GP-B results that the ability to monitor and adjust the coupling of spacecraft to subsystem controllers, at all stages of the mission is essential to optimizing mission results. We provide a look at the progress to date of this ef fort.

Document Type:Conference or Workshop Item (Poster)
Title:Generic Drag-free Control Simulation – Lessons Learned from Gravity Probe B
Authors:
AuthorsInstitution or Email of Authors
Pelivan, IvankaCenter for Applied Space Technology and Microgravity, University of Bremen, Germany
Smoot, SaraW.W.Hansen Experimental Physics Lab, Stanford University, California, U.S.A.
Hipkins, DavidW.W.Hansen Experimental Physics Lab, Stanford University, California, U.S.A.
Theil, StephanUNSPECIFIED
Date:July 2008
Journal or Publication Title:Proceedings of the 31th Annual AAS Guidance and Control Conference
Refereed publication:No
In ISI Web of Science:No
Status:Published
Keywords:satellite dynamics, simulation, validation, Gravity Probe B, drag-free control
Event Title:31th Annual AAS Guidance and Control Conference
Event Location:Breckenridge, Colorado (USA)
Event Type:international Conference
Event Dates:2008-02-01 - 2008-02-06
Organizer:AAS
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W - no assignement
DLR - Research area:Space
DLR - Program:W - no assignement
DLR - Research theme (Project):W -- no assignement (old)
Location: Bremen
Institutes and Institutions:Institute of Space Systems > Regelungs- und Datensysteme
Deposited By: Dr.-Ing. Stephan Theil
Deposited On:12 Jan 2009
Last Modified:12 Dec 2013 20:35

Repository Staff Only: item control page

Browse
Search
Help & Contact
Informationen
electronic library is running on EPrints 3.3.12
Copyright © 2008-2012 German Aerospace Center (DLR). All rights reserved.