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Cold Atom Interferometry Accelerometry for Future Low-Low Satellite-to-Satellite Tracking and Cross-track Gradiometry Satellite Gravity Missions

Knabe, Annike and Schilling, Manuel and HosseiniArani, Alireza and Romeshkani, Mohsen and Müller, Jürgen and Beaufils, Quentin and Pereira dos Santos, Franck (2023) Cold Atom Interferometry Accelerometry for Future Low-Low Satellite-to-Satellite Tracking and Cross-track Gradiometry Satellite Gravity Missions. 28th IUGG General Assembly, 2023-07-11 - 2023-07-20, Berlin. doi: 10.57757/IUGG23-1438.

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Official URL: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5017162

Abstract

Satellite gravity missions give unprecedented insights in the Earth system. However, a further improvement in spatial and temporal resolution is required to better monitor the various geo-processes. When considering the sensors of satellite missions, the accelerometers are the limiting factors. Cold Atom Interferometry (CAI) accelerometers are characterized by their long-term stability and an accurate knowledge of the scale factor. Closed-loop simulations are performed in order to quantify the influence of different accelerometer performances on the gravity field recovery. The impact of the scale factor knowledge on the acceleration measurement is evaluated in terms of a requirement based on the non-gravitational acceleration signal and the accelerometer noise. Furthermore, the variation of the non-gravitational acceleration signal within one interferometer cycle is studied. It is demonstrated that both aspects are significant. The impact on the acceleration measurements can be reduced to an acceptable level by drag compensation. Moreover, the addition of a CAI cross-track gradiometer to a low-low Satellite-to-Satellite Tracking mission is investigated, as supplemental observations in east-west direction are provided. This combination enhances the estimation of the high-degree coefficients and reduces the striping effects in north-south direction. We acknowledge the support by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - Project-ID 434617780 - SFB 1464 and under Germany's Excellence Strategy - EXC-2123 Quantum-Frontiers - 390837967 and the support by Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR) for the projects Q-BAGS and QUANTGRAV.

Item URL in elib:https://elib.dlr.de/196309/
Document Type:Conference or Workshop Item (Speech)
Title:Cold Atom Interferometry Accelerometry for Future Low-Low Satellite-to-Satellite Tracking and Cross-track Gradiometry Satellite Gravity Missions
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Knabe, AnnikeInstitut für Erdmessung, Leibniz Universität Hannoverhttps://orcid.org/0000-0002-6603-8648UNSPECIFIED
Schilling, ManuelUNSPECIFIEDhttps://orcid.org/0000-0002-9677-0119UNSPECIFIED
HosseiniArani, AlirezaInstitut für Erdmessung, Leibniz Universität Hannoverhttps://orcid.org/0000-0002-5080-7094UNSPECIFIED
Romeshkani, MohsenInstitut für Erdmessung, Leibniz Universität HannoverUNSPECIFIEDUNSPECIFIED
Müller, JürgenInstitut für Erdmessung, Leibniz Universität Hannoverhttps://orcid.org/0000-0003-1247-9525UNSPECIFIED
Beaufils, QuentinLNE--SYRTE, Observatoire de Paris, Université PSL, CNRS, Sorbonne Université, 61, avenue de l'Observatoire, F--75014 PARIS, France, Paris, FRANCEUNSPECIFIEDUNSPECIFIED
Pereira dos Santos, FranckLNE--SYRTE, Observatoire de Paris, Université PSL, CNRS, Sorbonne Université, 61, avenue de l'Observatoire, F--75014 PARIS, France, Paris, FRANCEhttps://orcid.org/0000-0003-0659-5028UNSPECIFIED
Date:2023
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
DOI:10.57757/IUGG23-1438
Status:Published
Keywords:Geodäsie, Schwerefeld, Quantensensor, Satellitenmission
Event Title:28th IUGG General Assembly
Event Location:Berlin
Event Type:international Conference
Event Start Date:11 July 2023
Event End Date:20 July 2023
Organizer:International Union of Geodesy and Geophysics (IUGG)
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Communication, Navigation, Quantum Technology
DLR - Research area:Raumfahrt
DLR - Program:R KNQ - Communication, Navigation, Quantum Technology
DLR - Research theme (Project):R - Inertial Sensing for Space Applications
Location: Hannover
Institutes and Institutions:Institute for Satellite Geodesy and Inertial Sensing > Satellite Geodesy and Geodetic Modelling
Deposited By: Schilling, Manuel
Deposited On:18 Aug 2023 11:59
Last Modified:24 Apr 2024 20:56

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