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Radio wave propagation experiments to probe the ionosphereIonospheric bias corrections associated with radio tracking of spacecraft depend on the following measuring techniques for integrated electron content: (1) Faraday rotation measurements from an earth synchronous satellite; (2) ranging measurements at two frequencies; and (3) group and phase velocity measurements obtained from tracking data. The extraction of the integrated electron content directly from tracking data is achieved by comparison of range-rate measurements based on Doppler shift with differentiated range measurements based on tone delay. This method is most desirable because the measured corrections pertain directly to the spacecraft whose orbit is being determined and can be used in near earth as well as deep space tracking data.
Document ID
19720018106
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Schmid, P. E.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 6, 2013
Publication Date
January 1, 1972
Publication Information
Publication: Significant Accomplishments in Technol., GSFC, 1970
Subject Category
Communications
Accession Number
72N25756
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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