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XRTD: An X-Windows based, real-time radiometric display and analysis systemXRTD is a graphical user interface (GUI) based tool for monitoring real time radiometric spacecraft data. The tool is designed to allow the navigation analyst to both view and analyze the characteristics of Doppler and ranging data. This capability is critical if ground personnel wish to verify the correct performance of ongoing maneuvers. The raw tracking data is transferred from Deep Space Network (DSN) computers to a local workstation, where the predicted value for the observable is subtracted from the actual observed value to create a residual. The tool then allows the navigation analyst to rescale and replot the data using simple GUI techniques. The navigator may then perform a number of data analysis and modeling techniques on the resulting residuals to allow for the real time characterization of spacecraft events. These techniques include the modeling of maneuvers, the compression and differencing of data, and Fast Fourier transforms of the data. This tool has shortened the amount of time required for initial characterization of spacecraft maneuvers from several hours to a few minutes.
Document ID
19940019449
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Pollmeier, Vincent M. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
September 6, 2013
Publication Date
March 1, 1993
Publication Information
Publication: SpaceOps 1992: Proceedings of the Second International Symposium on Ground Data Systems for Space Mission Operations
Subject Category
Communications And Radar
Accession Number
94N23922
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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