The first performance evaluation of the Galileo Return Link Service (RLS) following its launch has revealed excellent service provision that exceeds set targets.
The Galileo RLS, which allows people in distress to receive automatic acknowledgement that their signal has been received, was declared operational at the 12th European Space Conference on January 21.
For the Galileo Forward Link Service, the new targets aim for 99% service availability and 95% location accuracy within 5 km. Over the first month under the new regime, both parameters were comfortably exceeded reaching 99.9% and 99.8% respectively.
During the same period, the Galileo Return Link Service was available 100% of the time, above the target value of 95%. On average, the Galileo system took 37 seconds to deliver automatic acknowledgement to the beacon. This is significantly better than the target value of 15 minutes, which was achieved 99.61% of the time.
The Galileo Return Link Service (RLS) is a free-of-charge global service available to Cospas-Sarsat RLS compatible beacons. The new functionality, currently offered uniquely by Galileo, enables a communication link that relays Return Link Messages (RLM) back to the originating beacon through the Galileo Navigation Signal in Space (I/NAV E1) – for more information, see the updated SAR/Galileo Service Definition Document. The GSA in its role as a service provider is continuously monitoring the services provided by the Galileo system, including the Galileo SAR service.