Reference : Initial Orbit Determination Results from the University of Luxembourg using Spire GNS...

	Document type :	Scientific congresses, symposiums and conference proceedings : Poster
	Discipline(s) :	Engineering, computing & technology : Aerospace & aeronautics engineering Engineering, computing & technology : Computer science
	Focus Areas :	Computational Sciences
	To cite this reference:	http://hdl.handle.net/10993/55274

Title :	Initial Orbit Determination Results from the University of Luxembourg using Spire GNSS Tracking Data
Language :	English
Author, co-author :	Shafiei, Parisa [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE) >]
	Bemtgen, Jean [University of Luxembourg > Faculty of Science, Technology and Medecine (FSTM) > >]
	Talpe, Matthieu [Spire Global Luxembourg S.a.r.l., Luxembourg]
	Tabibi, Sajad [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE) >]
Publication date :	28-Apr-2023
Number of pages :	PDF
Peer reviewed :	Yes
Audience :	International
Event name :	European Geosciences Union (EGU) General Assembly
Event date :	from 22-04-2023 to 28-04-2023
Event place (city) :	Vienna
Event country :	Austria
Keywords :	[en] GNSS Constellations ; CubeSats ; Network Processing ; Precise Orbit Determination (POD) ; Low Earth Orbit (LEO) Satellites ; Kinematic Orbits ; Spire GNSS-RO ; Raw Observation Approach
Abstract :	[en] CubeSats constellations using commercial off-the-shelf components have been studied for different applications, such as GNSS Radio Occultation (GNSS-RO). Furthermore, precise orbit determination of Low Earth Orbit (LEO) CubeSats based on multiple GNSS constellations would open new opportunities for scientific applications such as Earth’s gravity field measurements. In GNSS kinematic orbit determination, which is the common method used for small sats, the derived orbits are affected by noise, data gaps, outliers, measurement errors as well as poor geometry of the observations. Our work seeks to mitigate these issues and we present two areas of research: 1) GNSS network processing of GPS and Galileo constellations and 2) kinematic orbit determination of a set of Spire CubeSats that host a GNSS-RO payload. An initial architecture of kinematic orbit processing for the Spire GNSS-RO CubeSats constellation is obtained and the details on validations and limitations are discussed in more details. In addition, we showcase the agreement between the GNSS orbit products produced at the University of Luxembourg (UL) with those of the Center for Orbit Determination in Europe (CODE). Finally, the Spire kinematic orbits based on the raw observation approach are derived and compared to the L1B Spire orbit products.
Research centres :	University of Luxembourg
Funders :	Fonds National de la Recherche - FnR
Name of the research project :	CubeSats for Gravity Recovery
Target :	Researchers ; Professionals ; Students ; General public ; Others
Permalink :	http://hdl.handle.net/10993/55274
DOI :	10.5194/egusphere-egu23-15932
Other URL :	https://meetingorganizer.copernicus.org/EGU23/EGU23-15932.html
FnR project :	FnR ; FNR15740886 > Parisa Shafiei > CSGR > Cubesats For Gravity Recovery > 01/09/2021 > 31/08/2025 > 2021

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	Fulltext file(s): File Commentary Version Size Access Open access Shafiei et al., Initial Orbit Determination Results of Spire CubeSats - EGU23 - Poster.pdf Author postprint 2.56 MB View/Open

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