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Processing and Solutions

GEONET 0138 station in Hokkaido

Coordinate Estimate
From top to bottom, (1) number of satellites, (2) ZTD solution, (3) north, (4) east, and (5) height components of coordinate solutions, where GPS only, GPS+GLONASS, and GPS+GLONASS+QZSS solurions are shown as red, green, and blue curves, respectively.

Reduction of drifts bothe for ZTD and coordinate solutions is observed with mulriple use of GNSS.

Sample data and Setting

Item/Parameters Notes and Setting
Processing PPP processing
Purpose Coordinate determination with GPS+GLONASS+QZSS observation data.
Stations GEONET 0138 station
(Please use the template file by replacing the stations).
Processing time window 2013/01/19 00:00~24:00 GPST
(Please use the template file by cahnging the time-window setting).
Used data GPS+GLONASS+QZSS phase L3 (IF: Ionosphere free) , 15 minutes processing (due to limitation of satellite clock products)
Get data Redistribution is restricted.
Please your own observation data or get data from GSI.
Satellite products IGS EMX final (GPS+GLONASS) and JAXA QZSS final (QZSS) products are edited manually and generate one SP3 file.
Setting in processing PPP kinematic processing
Constrain A priori coordinate 100m, Coordinate change 1m/s, ZTD 1e-5 m/s
Processing cost About 30 seconds
Validation Validate solutions at fixed station with setting of the same constrain.