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The Automatic Precise Point Positioning Service of the Global Differential GPS System
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Welcome to APPS!
The Automatic Precise Positioning Service
of the Global Differential GPS (GDGPS) System.

APPS is now using GIPSY 6.3

  APPS accepts GPS measurement files, and applies the most advanced GPS positioning technology from NASA's Jet Propulsion Laboratory to estimate the position of your GPS receivers, whether they are static, in motion, on the ground, or in the air. APPS employs:
 
 
  • Real-time GPS orbit and clock products from JPL's GDGPS System
  • JPL's daily and weekly precise GPS orbit and clock products
  • JPL's GIPSY-OASIS software for processing the GPS measurements
 
  APPS continues to provide JPL's venerable AutoGIPSY (AG) service - for free, for static post-processing (e.g. measurement latency of a week or more), but also offers new and unique services:
  • APPS will generate a time series of positions if your receiver was in motion
  • APPS has access to real-time GPS orbit and clock products so you never have to wait
  • APPS is fast. Positioning is available in seconds
 
  Fly-Land-Send - APPS will estimate your flight trajectory within minute s after submission.
 
  APPS supports a diverse customer base, from occasional users to heavy-duty industrial users. Occasional users may upload their measurement files manually through this web site. Heavy-duty users will receive Secure FTP access to our servers, to which they can upload their measurement files, and more easily automate their processing. It is also possible to interface with APPS through e-Mail.
 
  APPS supports input in RINEX 2, RINEX 2.11 input files, GIPSY TDP files
 
  Give APPS a try... Instant Positioning
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