HEPOS post-processing services can provide very high positioning accuracy. For determining coordinates in post-processing mode, the user measures with a geodetic GPS/GNSS receiver at the unknown points. Afterwards, he processes his observations together with reference station data from HEPOS, for estimating the coordinates of the unknown points. This processing takes place in the office, after the measurements.

The post-processing services can be used for measuring using the following GPS-techniques:

• Static positioning
• Rapid-static positioning
• Stop and go
• Post-processed Kinematic positioning

For using the post-processing services, the user orders reference station data from HEPOS. HEPOS supplies these data in RINEX. It is of particularly practical importance for the users, the capability of HEPOS to supply data not only from real but also from Virtual Reference Stations.