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GRAIL - A Microwave Ranging Instrument to Map Out the Lunar Gravity FieldGravity Recovery and Interior Laboratory, or GRAIL, is a NASA mission to map out the gravity field of the moon to an unprecedented level of detail. The instrument for this mission is based on GRACE (Gravity Recovery and Climate Experiment), an earth-orbiting mission currently mapping out the gravity field of the earth. This paper will describe the similarities and differences between these two instruments with a focus on the microwave ranging measurements used to determine the gravity parameters and the testbed built at Jet Propulsion Laboratory to demonstrate micron level ranging capability. The onboard ultrastable oscillator and RF instruments will be described and noise contributions discussed.
Document ID
20150008490
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
Authors
Enzer, Daphna G.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Wang, Rabi T.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Klipstein, William M.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
May 20, 2015
Publication Date
June 2, 2010
Subject Category
Lunar And Planetary Science And Exploration
Meeting Information
Meeting: 2010 IEEE International Frequency Control Symposium
Location: Newport Beach, CA
Country: United States
Start Date: June 2, 2010
End Date: June 4, 2010
Sponsors: Institute of Electrical and Electronics Engineers
Distribution Limits
Public
Copyright
Other

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