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Integrated Sensor Analysis GRACE

  • Björn Frommknecht
  • Ulrich Fackler
  • Jakob Flury

Summary

In this article performance estimates for the accelerometers, the star sensors and the K-Band ranging system onboard the GRACE satellites are given. It is shown that the accelerometers perform slightly worse than specified and that the star sensor and K-Band ranging system performances agree with the specifications. It is also demonstrated that mainly for the accelerometers performance assessment further investigations are needed as effects of unknown origin affect the measurements. For each instrument the results from the highrate L1a to the filtered and downsampled L1b data processing are shown and discussed. Concerning the accelerometer processing, good agreement with the data provided by JPL has been reached, concerning the star sensors and the K-Band system differences remain.

Key words

GRACE sensor analysis performance estimation data processing 

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References

  1. Flury J (2004) Beiträge zur Signalanalyse der GRACE L1a Akzelerometerdaten, Internal report, Institute for Astronomical and Physical Geodesy, Technische Universität MünchenGoogle Scholar
  2. Hudson D (2003) In-flight characterization and calibration of the SuperSTAR accelerometer, MSc thesis, Center of Space Research, University of Texas, AustinGoogle Scholar
  3. Stanton R, S Bettadpur, C Dunn (1998) Science & Mission Requirements Document, Technical report, Jet Propulsion Laboratory, PasadenaGoogle Scholar
  4. Thomas JB (1999) An Analysis of the Gravity Field Estimation based on Dual-1-Way Intersatellite Biased Ranging, Technical report, Jet Propulsion Laboratory, PasadenaGoogle Scholar
  5. Wu SC, G Kruizinga (2004) Algorithm theoretical basis document for the grace l1b data processing, Technical report, Jet Propulsion Laboratory, PasadenaGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Björn Frommknecht
    • 1
  • Ulrich Fackler
    • 1
  • Jakob Flury
    • 1
  1. 1.Institute for Astronomical and Physical GeodesyTechnische Universität MünchenMunich

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