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CASSIOPE Orbit and Attitude Determination using Commercial-off-the-shelf GPS Receivers

Montenbruck, Oliver and Hauschild, André and Langley, Richard and Siemes, Christian (2019) CASSIOPE Orbit and Attitude Determination using Commercial-off-the-shelf GPS Receivers. GPS Solutions, 23 (4), p. 114. Springer. DOI: 10.1007/s10291-019-0907-2 ISSN 1080-5370

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As part of the "GPS Attitude, Positioning, and Profiling experiment (GAP)" of the Canadian CASSIOPE science and technology mission, a set of four geodetic GPS receivers connected to independent antennas on the top-panel of the spacecraft can be operated concurrently to collect dual-frequency code and phase measurements on both the L1 and L2 frequencies. The qualification of the commercial-off-the-shelf (COTS) GPS receivers is discussed and flight results of precise orbit and attitude determination are presented. Pseudorange and carrier-phase errors amount to roughly 65 cm and 8 mm for the ionosphere-free dual-frequency combination, which compares favorably with other missions using fully qualified space GPS receivers and is mainly limited by choice of simple patch antennas without choke rings. Precise orbit determination of CASSIOPE using GPS observations can achieve decimeter-level accuracy during continued operations but suffers from onboard and mission restrictions that limit the typical data availability to less than 50% of each day and induce regular long-duration gaps of 4-10 hours. Based on overlap analyses, daily peak orbit determination errors can, however, be confined to 1 m 3D on 84% of all days, which fulfills the mission needs for science data processing of other instruments. The attitude of CASSIOPE can be determined with a representative precision of about 0.2° in the individual axes using three GAP receivers and antennas. Availability of dual-frequency measurements is particularly beneficial and enables single-epoch ambiguity fixing in about 97% of all epochs. Overall, the GAP experiment demonstrates the feasibility of using COTS-based global navigation satellite system receivers in space and the benefits they can bring for small-scale science missions.

Item URL in elib:https://elib.dlr.de/130972/
Document Type:Article
Title:CASSIOPE Orbit and Attitude Determination using Commercial-off-the-shelf GPS Receivers
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Montenbruck, OliverDLR/GSOChttps://orcid.org/0000-0003-4783-745X
Hauschild, AndréDLR/GSOChttps://orcid.org/0000-0002-0172-3492
Langley, RichardUniversity of New Brunswickhttps://orcid.org/0000-0002-7228-6509
Siemes, ChristianTU Delfthttps://orcid.org/0000-0001-8316-1130
Journal or Publication Title:GPS Solutions
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1007/s10291-019-0907-2
Page Range:p. 114
Keywords:orbit determination; attitude determination; COTS receiver; CASSIOPE
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Technik für Raumfahrtsysteme
DLR - Research theme (Project):R - Vorhaben Infrastruktur und Unterstützung für Raumflugbetrieb
Location: Oberpfaffenhofen
Institutes and Institutions:Space Operations and Astronaut Training
Deposited By: Montenbruck, Dr.rer.nat.hab. Oliver
Deposited On:25 Nov 2019 17:43
Last Modified:03 Mar 2020 12:43

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