============================ txinfodef.txt ==================================
This file defines the columns of data in the txinfo.log files produced by the
GRID software receiver.  Each txinfo.log file contains time-stamped
transmitter information in the form of azimuth angle, elevation angle, and
health status for tracked transmitters. See channeldef.txt for a definition of
ORT.  ORT time stamps indicate the time at which the transmitter information
applies.
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Column        Quantity

1 ----------- ORT week number. 

2 ----------- ORT whole seconds of week.

3 ----------- ORT fractional second. 

4 ----------- Azimuth in degrees.

5 ----------- Elevation in degrees.

6 ----------- Health status indicator; zero indicates nominal (healthy).

7 ----------- System:
              0       GPS
              1       GALILEO
              2       GLONASS
              3       CDMA
              4       SBAS
              5       BDS

8 ----------- Transmitter identification number (TXID).

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