elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Impressum | Datenschutz | Kontakt | English
Schriftgröße: [-] Text [+]

Beyond MAGIC: Evaluation of Novel Sensors and Satellite Formation Flights for Future Gravimetry Missions

Kupriyanov, Alexey und Reis, Arthur und Schilling, Manuel und Knabe, Annike und Fletling, Nina und HosseiniArani, Alireza und Romeshkani, Mohsen und Müller, Vitali und Müller, Jürgen (2023) Beyond MAGIC: Evaluation of Novel Sensors and Satellite Formation Flights for Future Gravimetry Missions. MAGIC Science and Applications Workshop 2023, 2023-11-02 - 2023-11-03, Assisi, Italy.

[img] PDF - Nur DLR-intern zugänglich
2MB

Kurzfassung

For more than two decades, satellite gravimetry missions have provided unique data about mass redistribution processes in the Earth system. Ongoing climate change underlines the urgent need to continue uninterruptedly this kind of measurements with enhanced concepts and sensors. Here we focus on performance evaluation of novel accelerometers (ACC) and satellite formation flights. Only electrostatic accelerometers (EA) were utilized in satellite gravimetry missions at Low Earth Orbit (LEO) so far. EAs are one of the limiting factors in current space gravimetry dominating the error contribution at low frequencies, mostly because of the polarization wire that connects the Test Mass (TM) with the electrode housing. One focus of this study is modelling wireless enhanced EAs with laser-interferometric readout, so called "optical accelerometers" and evaluating their performance at LEOs. Contrary to present-day EAs, which measure capacitively the TM displacement and actuate it electrostatically, optical ACC, beside a similar actuation scheme, track the TM with laser interferometry. Optical accelerometry is based on promising results of LISA-Pathfinder which demonstrated the benefit of using optical ACC and UV TM discharge. This allows to sense the non-gravitational accelerations several orders of magnitude more accurate than it is realized in current gravimetry missions. Contrary to electrostatic or optical accelerometry, in Cold Atom Interferometry (CAI), atom clouds act as test masses. The unknown acceleration is calculated from the phase shift of two interfering atomic states of an atom cloud which is manipulated with pulses of two counter propagating laser beams. We model the full circle of gravimetry missions using various software parts: an orbital dynamics software, a software module, mainly developed by IGP, for modelling novel electrostatic and optical accelerometers including the major noise sources, and a software package for gravity field recovery developed at IfE. CAI and hybridized (EA+CAI) ACCs performance analyses were also carried out at IfE. In this presentation, we compare the performance of different novel accelerometers and gradiometers, i.e. enhanced electrostatic, optical, CAI and hybridized (EA+CAI), as well as demonstrate and evaluate alternative satellite formation flights and combination concepts, such as pendulum, Bender and ll-sst with cross-track gradiometry. Improved results of the recovered gravity fields, including the effect of insufficiently known background models for high-frequency mass variations, will be shown for various mission scenarios and sensors.

elib-URL des Eintrags:https://elib.dlr.de/200908/
Dokumentart:Konferenzbeitrag (Poster)
Titel:Beyond MAGIC: Evaluation of Novel Sensors and Satellite Formation Flights for Future Gravimetry Missions
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Kupriyanov, AlexeyInstitut für Erdmessung, Leibniz Universität Hannover, Germanyhttps://orcid.org/0000-0002-0743-5889NICHT SPEZIFIZIERT
Reis, ArthurMax Planck Institute for Gravitational Physics, Hannoverhttps://orcid.org/0000-0002-6682-5457NICHT SPEZIFIZIERT
Schilling, ManuelManuel.Schilling (at) dlr.dehttps://orcid.org/0000-0002-9677-0119NICHT SPEZIFIZIERT
Knabe, AnnikeInstitut für Erdmessung, Leibniz Universität Hannoverhttps://orcid.org/0000-0002-6603-8648NICHT SPEZIFIZIERT
Fletling, NinaInstitut für Erdmessung, Leibniz Universität HannoverNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
HosseiniArani, AlirezaInstitut für Erdmessung, Leibniz Universität Hannoverhttps://orcid.org/0000-0002-5080-7094NICHT SPEZIFIZIERT
Romeshkani, MohsenInstitut für Erdmessung, Leibniz Universität HannoverNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Müller, VitaliMax-Planck-Institut für Gravitationsphysik, HannoverNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Müller, JürgenInstitut für Erdmessung, Leibniz Universität Hannover, Germanyhttps://orcid.org/0000-0003-1247-9525NICHT SPEZIFIZIERT
Datum:2023
Referierte Publikation:Nein
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Status:veröffentlicht
Stichwörter:GRACE, Satellitenformationen, Accelerometer
Veranstaltungstitel:MAGIC Science and Applications Workshop 2023
Veranstaltungsort:Assisi, Italy
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:2 November 2023
Veranstaltungsende:3 November 2023
Veranstalter :ESA
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:Kommunikation, Navigation, Quantentechnologien
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R KNQ - Kommunikation, Navigation, Quantentechnologie
DLR - Teilgebiet (Projekt, Vorhaben):R - Inertial Sensing for Space Applications
Standort: Hannover
Institute & Einrichtungen:Institut für Satellitengeodäsie und Inertialsensorik > Satellitengeodäsie und geodätische Modellierung
Hinterlegt von: Schilling, Manuel
Hinterlegt am:09 Jan 2024 16:30
Letzte Änderung:20 Jun 2024 14:18

Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags

Blättern
Suchen
Hilfe & Kontakt
Informationen
electronic library verwendet EPrints 3.3.12
Gestaltung Webseite und Datenbank: Copyright © Deutsches Zentrum für Luft- und Raumfahrt (DLR). Alle Rechte vorbehalten.