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A Celestial Reference Frame at X/ka-Band (8.4/32 Ghz) for Deep Space NavigationDeep space tracking and navigation are done in a quasi-inertial reference frame based upon the angular positions of distant active galactic nuclei (AGN). These objects, which are found at extreme distances characterized by median redshifts of z = 1, are ideal for reference frame definition because they exhibit no measurable parallax or proper motion. They are thought to be powered by super massive black holes whose gravitational energy drives galactic sized relativistic jets. These jets produce synchrotron emissions which are detectable by modern radio techniques such as Very Long baseline Interferometry (VLBI).
Document ID
20150004671
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
Authors
Jacobs, C. S.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Clark, J. E.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Garcia-Miro, C.
(Instituto Nacional de Tecnica Aeroespacial Madrid, Spain)
Horiuchi, S.
(Commonwealth Scientific and Industrial Research Organization Sydney, Australia)
Romero-Wolf, A.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Snedeker, L.
(ITT Exelis Monrovia, CA, United States)
Sotuela, I.
(Instituto Nacional de Tecnica Aeroespacial Madrid, Spain)
Date Acquired
April 8, 2015
Publication Date
October 29, 2012
Subject Category
Space Communications, Spacecraft Communications, Command And Tracking
Meeting Information
Meeting: International Symposium on Space Flight Dynamics
Location: Pasadena, CA
Country: United States
Start Date: October 29, 2012
End Date: November 2, 2012
Sponsors: Jet Propulsion Lab., California Inst. of Tech.
Distribution Limits
Public
Copyright
Other
Keywords
very long baseline interferometry (VLBI)
Active Galactic Nuclei
reference frame
Ka-band

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