GPS Data Files
GPS data are stored in a binary format on the receiver.
Data are downloaded and converted into ascii format,
Sample RINEX header
Type of observations:
L1 and L2 are the carrier phase data in cycles.
D1 and D2 are doppler frequencies.
C1 is the C/A code pseudorange on L1 (meters)
P1 and P2 are L1/L2 pseudoranges using the Pcode (meters)
S1 and S2 are signal to noise ratios (not always available)
The key pieces of information you need to extract from the header for this class are:
5 C1 L1 L2 P2 P1 # / TYPES OF OBSERV
Approximate receiver location
-1283388.8693 -4713016.9053 4090191.0471 APPROX POSITION XYZ