GPS Pivot Point Solution File

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The GPSPivotPointSolutionFile object provides functionalities for reading and writing GPS Pivot Point Solution files. This is an ASCII file of Point Solution data as put out by the Pivot GPS receiver. The time system is UTC, and position and velocity values are given in ICRF.

 

•For information on how to simulate Point Solution data, see Simulating Tracking Data.

•For information on how to generate GPS Pivot Point Solution files, see Generating Tracking Data Files.

•For information on viewing and editing data in a GPS Pivot Point Solution file, see Using the Tracking Data Editor.

•For information on including a GPS Pivot Point Solution file in a Kalman Filter, Unscented Kalman Filter, or Batch Least Squares OD process, see Including Tracking Data in an Estimation Process.

 

An example of the format of a GPS Pivot Point Solution file is given below. The columns from left to right include measurement data as follows:

 

•Packet ID (not used by FreeFlyer)

•Packet Sequence Number - numeric value from 0000 to 99999 (not used by FreeFlyer)

•Spacecraft ID

•Day/Month/Year (ddmmyyyy) - (UTC)

•Hour/Minute/Second (hhmmss.sss) – (UTC)

•X Position (meters)

•Y Position (meters)

•Z Position (meters)

•X Velocity (meters/sec)

•Y Velocity (meters/sec)

•Z Velocity (meters/sec)

•Yaw Angle (radians) (not used by FreeFlyer)

•Pitch Angle (radians) (not used by FreeFlyer)

•Roll Angle (radians) (not used by FreeFlyer)

•Yaw Rate (radians/sec) (not used by FreeFlyer)

•Pitch Rate (radians/sec) (not used by FreeFlyer)

•Roll Rate (radians/sec) (not used by FreeFlyer)

 

 

 

See Also

•GPSPivotPointSolutionFile Properties and Methods