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Advancing Navigation, Timing, and Science with the Deep Space Atomic ClockNASA's Deep Space Atomic Clock mission is developing a small, highly stable mercury ion atomic clock with an Allan deviation of at most 1e-14 at one day, and with current estimates near 3e-15. This stability enables one-way radiometric tracking data with accuracy equivalent to and, in certain conditions, better than current two-way deep space tracking data; allowing a shift to a more efficient and flexible one-way deep space navigation architecture. DSAC-enabled one-way tracking will benefit navigation and radio science by increasing the quantity and quality of tracking data. Additionally, DSAC would be a key component to fully-autonomous onboard radio navigation useful for time-sensitive situations. Potential deep space applications of DSAC are presented, including orbit determination of a Mars orbiter and gravity science on a Europa flyby mission.
Document ID
20160008206
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
Authors
Ely, Todd A.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Seubert, Jill
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Bell, Julia
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
July 1, 2016
Publication Date
May 5, 2014
Subject Category
Space Communications, Spacecraft Communications, Command And Tracking
Meeting Information
Meeting: International Conference on Space Operations (SpaceOps 2014)
Location: Pasadena, CA
Country: United States
Start Date: May 5, 2014
End Date: May 9, 2014
Sponsors: American Inst. of Biological Sciences
Distribution Limits
Public
Copyright
Other
Keywords
radio science

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