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GPS Orbit Determination for Micro-Satellites – The PROBA-2 Flight Experience

Montenbruck, Oliver and Markgraf, Markus and Santandrea, Stefano and Naudet, Joris (2010) GPS Orbit Determination for Micro-Satellites – The PROBA-2 Flight Experience. AIAA/AAS Astrodynamics Specialist Conference, 2-5 Aug 2010, Toronto, Canada.

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The PROBA-2 microsatellite of the European Space Agency (ESA) is equipped with a novel single frequency global positioning system (GPS) receiver, which combines low resource requirements with a high navigation performance. Aside from supporting the spacecraft and mission operations, the Phoenix GPS receiver on PROBA-2 is used to study realtime and offline navigation using single-frequency GPS measurements. A 1 m accuracy is targeted for both applications which has so far been the domain of dual-frequency receivers. Following a mission overview, the achievable performance for ground-based orbit determination and real-time onboard navigation is discussed for different processing concepts based on flight data collected during the first half year of mission operations. It is shown that a 1 m or better accuracy can be achieved in either case, despite sub-optimal GPS tracking conditions induced by the mission specific attitude profile. Besides self-consistency checks and comparisons with independent GPS based orbit determination solutions, the accuracy is evaluated using satellite laser ranging (SLR) measurements as an external reference. The results show that single-frequency GPS tracking is sufficient to meet the navigation requirements of even advanced remote sensing missions in low Earth orbit, if their accuracy potential is properly exploited.

Item URL in elib:https://elib.dlr.de/69088/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:GPS Orbit Determination for Micro-Satellites – The PROBA-2 Flight Experience
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Montenbruck, Oliveroliver.montenbruck (at) dlr.deUNSPECIFIED
Markgraf, Markusmarkus.markgraf (at) dlr.deUNSPECIFIED
Naudet, JorisQinetiqUNSPECIFIED
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Phoenix GPS; PROBA-2; precise orbit determination; real-time navigation; XNS
Event Title:AIAA/AAS Astrodynamics Specialist Conference
Event Location:Toronto, Canada
Event Type:international Conference
Event Dates:2-5 Aug 2010
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W - no assignment
DLR - Research area:Space
DLR - Program:W - no assignment
DLR - Research theme (Project):W - no assignment (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Space Operations and Astronaut Training
Deposited By: Montenbruck, Dr.rer.nat.hab. Oliver
Deposited On:09 Mar 2011 11:42
Last Modified:09 Mar 2011 11:42

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