The Benefit of Accelerometers Based on Cold Atom Interferometry for Future Satellite Gravity Missions

Research output: Chapter in book/report/conference proceedingContribution to book/anthologyResearchpeer review

Authors

External Research Organisations

  • DLR-Institute for Satellite Geodesy and Inertial Sensing
  • LNE-SYRTE - Observatoire de Paris
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Details

Original languageEnglish
Title of host publicationInternational Association of Geodesy Symposia
EditorsJeffrey T. Freymueller, Laura Sánchez
Place of PublicationBerlin
PublisherSpringer Nature
Chapter151
Pages213-220
Number of pages8
ISBN (print)9783031295065
Publication statusPublished - 17 Aug 2022

Publication series

NameInternational Association of Geodesy Symposia
Volume154
ISSN (Print)0939-9585
ISSN (electronic)2197-9359

Abstract

Satellite gravity missions, like GRACE and GRACE Follow-On, successfully map the Earth’s gravity field and its change over time. With the addition of the laser ranging interferometer (LRI) to GRACE-FO, a significant improvement over GRACE for inter-satellite ranging was achieved. One of the limiting factors is the accelerometer for measuring the non-gravitational forces acting on the satellite. The classical electrostatic accelerometers are affected by a drift at low frequencies. This drawback can be counterbalanced by adding an accelerometer based on cold atom interferometry (CAI) due to its high long-term stability. The CAI concept has already been successfully demonstrated in ground experiments and is expected to show an even higher sensitivity in space. In order to investigate the potential of the CAI concept for future satellite gravity missions, a closed-loop simulation is performed in the context of GRACE-FO like missions. The sensitivity of the CAI accelerometer is estimated based on state-of-the-art ground sensors and predictions for space applications. The sensor performance is tested for different scenarios and the benefits to the gravity field solutions are quantitatively evaluated. It is shown that a classical accelerometer aided by CAI technology improves the results of the gravity field recovery especially in reducing the striping effects. The non-gravitational accelerations are modelled using a detailed surface model of a GRACE-like satellite body. This is required for a realistic determination of the variations of the non-gravitational accelerations during one interferometer cycle. It is demonstrated that the estimated error due to this variation is significant. We consider different orbit altitudes and also analyze the effect of drag compensation.

Keywords

    Closed-loop simulation, cold atom interferometry, cold atom interferometer acceleration, future satellite gravity missions, Future satellite gravity missions, Cold atom interferometer accelerometry

ASJC Scopus subject areas

Research Area (based on ÖFOS 2012)

  • NATURAL SCIENCES
  • Geosciences
  • Geology, Mineralogy
  • Gravimetry
  • NATURAL SCIENCES
  • Physics, Astronomy
  • Physics, Astronomy
  • Atomic physics
  • TECHNICAL SCIENCES
  • Environmental Engineering, Applied Geosciences
  • Geodesy, Surveying
  • Satellite geodesy

Sustainable Development Goals

Cite this

The Benefit of Accelerometers Based on Cold Atom Interferometry for Future Satellite Gravity Missions. / Knabe, Annike; Schilling, Manuel; Wu, Hu et al.
International Association of Geodesy Symposia. ed. / Jeffrey T. Freymueller; Laura Sánchez. Berlin: Springer Nature, 2022. p. 213-220 (International Association of Geodesy Symposia; Vol. 154).

Research output: Chapter in book/report/conference proceedingContribution to book/anthologyResearchpeer review

Knabe, A, Schilling, M, Wu, H, Hosseiniarani, A, Müller, J, Beaufils, Q & Pereira Dos Santos, F 2022, The Benefit of Accelerometers Based on Cold Atom Interferometry for Future Satellite Gravity Missions. in JT Freymueller & L Sánchez (eds), International Association of Geodesy Symposia. International Association of Geodesy Symposia, vol. 154, Springer Nature, Berlin, pp. 213-220. https://doi.org/10.1007/1345_2022_151
Knabe, A., Schilling, M., Wu, H., Hosseiniarani, A., Müller, J., Beaufils, Q., & Pereira Dos Santos, F. (2022). The Benefit of Accelerometers Based on Cold Atom Interferometry for Future Satellite Gravity Missions. In J. T. Freymueller, & L. Sánchez (Eds.), International Association of Geodesy Symposia (pp. 213-220). (International Association of Geodesy Symposia; Vol. 154). Springer Nature. https://doi.org/10.1007/1345_2022_151
Knabe A, Schilling M, Wu H, Hosseiniarani A, Müller J, Beaufils Q et al. The Benefit of Accelerometers Based on Cold Atom Interferometry for Future Satellite Gravity Missions. In Freymueller JT, Sánchez L, editors, International Association of Geodesy Symposia. Berlin: Springer Nature. 2022. p. 213-220. (International Association of Geodesy Symposia). doi: 10.1007/1345_2022_151
Knabe, Annike ; Schilling, Manuel ; Wu, Hu et al. / The Benefit of Accelerometers Based on Cold Atom Interferometry for Future Satellite Gravity Missions. International Association of Geodesy Symposia. editor / Jeffrey T. Freymueller ; Laura Sánchez. Berlin : Springer Nature, 2022. pp. 213-220 (International Association of Geodesy Symposia).
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abstract = "Satellite gravity missions, like GRACE and GRACE Follow-On, successfully map the Earth{\textquoteright}s gravity field and its change over time. With the addition of the laser ranging interferometer (LRI) to GRACE-FO, a significant improvement over GRACE for inter-satellite ranging was achieved. One of the limiting factors is the accelerometer for measuring the non-gravitational forces acting on the satellite. The classical electrostatic accelerometers are affected by a drift at low frequencies. This drawback can be counterbalanced by adding an accelerometer based on cold atom interferometry (CAI) due to its high long-term stability. The CAI concept has already been successfully demonstrated in ground experiments and is expected to show an even higher sensitivity in space. In order to investigate the potential of the CAI concept for future satellite gravity missions, a closed-loop simulation is performed in the context of GRACE-FO like missions. The sensitivity of the CAI accelerometer is estimated based on state-of-the-art ground sensors and predictions for space applications. The sensor performance is tested for different scenarios and the benefits to the gravity field solutions are quantitatively evaluated. It is shown that a classical accelerometer aided by CAI technology improves the results of the gravity field recovery especially in reducing the striping effects. The non-gravitational accelerations are modelled using a detailed surface model of a GRACE-like satellite body. This is required for a realistic determination of the variations of the non-gravitational accelerations during one interferometer cycle. It is demonstrated that the estimated error due to this variation is significant. We consider different orbit altitudes and also analyze the effect of drag compensation.",
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AU - Knabe, Annike

AU - Schilling, Manuel

AU - Wu, Hu

AU - Hosseiniarani, Alireza

AU - Müller, Jürgen

AU - Beaufils, Quentin

AU - Pereira Dos Santos, Franck

N1 - Publisher Copyright: © 2022, The Author(s).

PY - 2022/8/17

Y1 - 2022/8/17

N2 - Satellite gravity missions, like GRACE and GRACE Follow-On, successfully map the Earth’s gravity field and its change over time. With the addition of the laser ranging interferometer (LRI) to GRACE-FO, a significant improvement over GRACE for inter-satellite ranging was achieved. One of the limiting factors is the accelerometer for measuring the non-gravitational forces acting on the satellite. The classical electrostatic accelerometers are affected by a drift at low frequencies. This drawback can be counterbalanced by adding an accelerometer based on cold atom interferometry (CAI) due to its high long-term stability. The CAI concept has already been successfully demonstrated in ground experiments and is expected to show an even higher sensitivity in space. In order to investigate the potential of the CAI concept for future satellite gravity missions, a closed-loop simulation is performed in the context of GRACE-FO like missions. The sensitivity of the CAI accelerometer is estimated based on state-of-the-art ground sensors and predictions for space applications. The sensor performance is tested for different scenarios and the benefits to the gravity field solutions are quantitatively evaluated. It is shown that a classical accelerometer aided by CAI technology improves the results of the gravity field recovery especially in reducing the striping effects. The non-gravitational accelerations are modelled using a detailed surface model of a GRACE-like satellite body. This is required for a realistic determination of the variations of the non-gravitational accelerations during one interferometer cycle. It is demonstrated that the estimated error due to this variation is significant. We consider different orbit altitudes and also analyze the effect of drag compensation.

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KW - Closed-loop simulation

KW - cold atom interferometry

KW - cold atom interferometer acceleration

KW - future satellite gravity missions

KW - Future satellite gravity missions

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BT - International Association of Geodesy Symposia

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By the same author(s)