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The BRTSUTDFFile object provides functionalities for reading Bilateration Ranging Transponder System (BRTS) Observation data (two-way Doppler and two-way range) from binary files written in the 75-byte binary Universal Tracking Data Format (UTDF). The time system for data contained in the BRTSUDTFFile is UTC, TwoWayRange data are given in km, and TwoWayDoppler data are given in Hz.


UTDF, BRST UTDF, and TDRSS UTDF are binary 75 byte formats described in detail in the GSFC document "Tracking And Acquisition Handbook For The Spaceflight Tracking And Data Network", October 1994.


For information on how to simulate BRTS Observation data, see Simulating Tracking Data.

For information on viewing and editing data in a BRTS UTDF file, see the Using the Tracking Data Editor. The data from the BRTS UTDF file will need to be loaded into a list of BRTSObservation objects in order for the data to be editable in the Tracking Data Editor. See the Supported Tracking Data Formats section for an example of how to load a data file into a list of observation objects.

For information on including a BRTS UTDF file in a Kalman Filter, Unscented Kalman Filter, or Batch Least Squares OD process, see Including Tracking Data in an Estimation Process.



See Also

BRTSUTDFFile Properties and Methods