blue arrow Instrument Overview

PRARE

The Precise Range And Range-Rate Equipment (PRARE) : was a microwave tracking system on board the ERS-1 mission. It operated at centimetre accuracy levels for the measurement of satellite to ground range and range rate. The concept was based on an autonomous spaceborne two-way and dual frequency microwave tracking system with its own telemetry, telecommand, data storage, timing and data transmission capabilities. This allowed data analysis on a global basis within a very short time delay. Due to the microwave transmission concept, the system operated independently from weather and daylight conditions. 

 


 

blue arrow Data

blue arrow DATA DOWNLOAD

Download data from the ERS-1 mission through the ESA Online Dissemination System. The data is freely available to registered users.

 

blue arrow DATA DESCRIPTION

All ERS-1 PRARE products, in accordance with ESA Earth Observation Data Policy, are freely available to users. Read more about the available PRARE products: