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NGS home (emblem) OPUS: Online Positioning User Service NOAA home (logo)
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  compute an accurate position for your GPS data file

 

WHAT'S NEW: 11/02/09- OPUS now uses GEOID09 to compute orthometric height. Use OPTIONS>Select your Geoid Model to employ an earlier model.
1. enter your email address
 
   
2. attach your DATA file
   
3. select your antenna type
   
4. add your antenna height
meters

5a. customize your solution, report, and publishing options
-or-
5b. choose a processor

for L1/L2 GPS data > 15 min. < 2 hrs.

for L1/L2 GPS data > 2 hrs. < 48 hrs.

NOAA privacy policy Your data may be retained for internal evaluations of OPUS use, accuracy, enhancements, or related research.