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The Automatic Precise Point Positioning Service of the Global Differential GPS System
Unique Features
About GDGPS How to use APPS
Under The Hood Documentation Register/Login
APPS Unique Features

  • Multiple input modes: web, python API, and RESTful interface
  • Instant gratification on the web: Register via Google or APPS; output served instantly
  • Upload and process multiple RINEX files in a single session
  • Pressure measurements files
  • Accommodate multi-day RINEX files, arbitrary file names
  • All pertinent results in a single output file; optimized for machine processing and human interface
  • GIPSY output files
  • No latency (using GDGPS real time orbit and clock products)
  • No latency for single frequency data (using GDGPS real time TEC maps)
  • Improved accuracy with more accurate hydrostatic delay model:
  • User-input pressure measurements
  • NCEP Objective Analysis pressure fields
  • Automatic detection of airplane/helicopter data and process optimization
  • Kinematic processing includes filtering and smoothing eliminating convergence artifacts
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