Gill, Eberhard and Montenbruck, Oliver and D'Amico, Simone and Persson, Staffan (2006) Autonomous Satellite Formation Flying for the PRISMA Technology Demonstration Mission. 16th AAS/AIAA Space Flight Mechanics Conference, 2006-01-22 - 2006-01-26, Tampa, Florida (USA).
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PRISMA, originating from an initiative of the Swedish National Space Board (SNSB) and the Swedish Space Corporation (SSC), is a precursor mission for critical technologies for formation flying and In-Orbit-Servicing. The PRISMA test bed comprises the fully maneuverable MAIN mini-satellite as well as the smaller TARGET subsatellite, both built by SSC. Within PRISMA, a GPS-based onboard navigation system offers precise absolute and relative orbit information in real-time as well as time synchronization. The Phoenix twelve channel single-frequency GPS receiver, selected for PRISMA, provides a code tracking accuracy of better than 0.5 m and a carrier-phase accuracy of better than 1 mm at 45 dB-Hz. The navigation system on MAIN will process in a reduced dynamic Kalman filter local GPS measurements and raw measurements from TARGET transmitted by an inter-satellite radio link. As a result, real-time position accuracies of 2 m for absolute and better than 0.1 m for relative navigation are expected. In addition, PRISMA will conduct the Spaceborne Autonomous Formation Flying Experiment (SAFE) with the objective to demonstrate a fully autonomous, robust and precise formation flying of spacecraft. To this end, a fuel-optimized guidance and control algorithm will be employed providing an accuracy of better than 25 m at typical distances of 100 to 2000 m, which is representative of future bi-static radar satellite formation flying missions. The guidance concept applies the eccentricity/inclination vector separation which avoids collision hazard from along-track position uncertainties through the proper separation of the two spacecraft in radial and cross-track direction.
|Document Type:||Conference or Workshop Item (Paper)|
|Title:||Autonomous Satellite Formation Flying for the PRISMA Technology Demonstration Mission|
|Keywords:||PRISMA, Formation Flying, GPS|
|Event Title:||16th AAS/AIAA Space Flight Mechanics Conference|
|Event Location:||Tampa, Florida (USA)|
|Event Type:||international Conference|
|Event Dates:||2006-01-22 - 2006-01-26|
|HGF - Research field:||Aeronautics, Space and Transport (old)|
|HGF - Program:||Space (old)|
|HGF - Program Themes:||W SY - Technik für Raumfahrtsysteme|
|DLR - Research area:||Space|
|DLR - Program:||W SY - Technik für Raumfahrtsysteme|
|DLR - Research theme (Project):||W -- no assignement (old)|
|Institutes and Institutions:||Space Operations and Astronaut Training|
|Deposited By:||Dr.rer.nat.hab. Oliver Montenbruck|
|Deposited On:||22 Jan 2007|
|Last Modified:||27 Apr 2009 13:25|
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