SAPOS® IN USE
Overview on SAPOS® services and possible application areas
Which services can I request through the ZSS?
Do you require real-time data or do you process your GNSS measurements in post-processing mode?
The SAPOS® Central Office meets your requirements and provides you with the following nationwide data and services for your applications.
SAPOS® HEPS
High-precision real-time positioning service
Accuracy
horizontal: 1 – 2 cm | vertical: 2 – 3 cm
Correction data format
RTCM 3.1 and RTCM 3.2 MSM
Clock rate
1 Hz
Satellite systems
GPS, GLONASS, Galileo and Beidou
Transmission technology
NTRIP (Networked Transport of RTCM via Internet Protocol) via mobile communication / mobile internet (GPRS, LTE)
Equipment
Multi-frequency GNSS receiver (suitable for processing RTK correction data in RTCM format)
Mobile phone modem and SIM card
Application areas
Cadastral surveying, construction and engineering surveying, machine control, precision farming, unmanned applications and robotics, hydrography and marine surveying
SAPOS® GPPS
Geodetic post-processing positioning service
Accuracy
horizontal: ≤ 1 cm | vertical: 1 – 2 cm
Correction data format
RINEX 3.03
Clock rate
≤ 1 Hz
Satellite systems
GPS, GLONASS, Galileo and Beidou
Transmission technology
Internet (web server of the SAPOS® operating states)
Equipment
GNSS receiver (recording of satellite observation data in RINEX format), post-processing software
Application areas
Reference systems for land surveying, basic and cadastral surveying, aerial imaging and laser scanning, mobile mapping, structural monitoring, scientific and geodynamic investigations
SAPOS® | GEPOS®
Broadcast-capable PPP-RTK service in trial operation
Further information and product specifications can be found on the website gepos.sapos.de.
SAPOS® reference stations
Raw data from reference stations in RTCM format
You can purchase the raw data from the SAPOS® reference stations in RTCM 3.2 MSM5 format via the ZSS in order to generate your own correction data services. For further information, please contact us by email sapos-zentrale-stelle@lgln.niedersachsen.de.
Which applications are supported?
The areas of application for SAPOS® services are as fascinating as they are wide ranging.
The areas of application for SAPOS® HEPS range from traditional cadastral surveying, engineering and construction surveying, GIS data acquisition, hydrographic applications and shipping to the automated control of agricultural and construction machinery.
SAPOS® GPPS is used where maximum accuracy is required, whether in the post-processing evaluation of aerial surveys or scan data, mobile mapping applications, or in the context of geodynamic investigations and monitoring tasks.
Regardless of the application, the proven SAPOS® services provide you with GNSS correction data of the highest quality and help you to carry out your measurement processes and tasks efficiently and precisely.
