Airbus expands its SpaceDataHighway with second satellite

The EDRS-C satellite, the second node of Airbus' SpaceDataHighway constellation, completed its commissioning tests on 15th July 2020 and is now ready to start operational services. Following its successful launch in August 2019 and manoeuvring to its geostationary orbital slot at 31 degrees east, in-orbit testing has been executed and laser communication links have been established to the Copernicus programme's Sentinel Earth observation satellites.

EDRS-C doubles transmission capacity and the constellation is now able to relay the data from two observation satellites simultaneously. It further strengthens Airbus' commitment to serve the existing Copernicus programme as well as future Sentinel missions. The additional capacity will also enable Airbus to accommodate further customer needs. By 2030, about 15 satellites should use the very high bandwidth data connectivity of the SpaceDataHighway.

From 2021 onwards, Pleiades Neo - Airbus' most advanced optical Earth observation constellation with four identical 30 cm resolution satellites - will be the next satellites to benefit from the SpaceDataHighway's infrastructure. As an integral part of Pleiades Neo's full end to end service, SpaceDataHighway will further optimise mission reactivity providing for real time tasking and very high throughput data offload.

EDRS-C has joined the EDRS-A satellite which daily transmits images of Earth acquired by the Copernicus programme's four Sentinel observation satellites. Since 2017, EDRS-A has achieved more than 35,000 laser connections. These successful connections have downloaded nearly two petabytes of data with an availability of 99.5 percent.

The SpaceDataHighway is the world's first laser communication geostationary constellation. It represents a game changer in the speed of space communications, using cutting-edge laser technology to deliver secure data transfer services at a rate of 1.8 Gbit/s in near-real time.

Its satellites can connect to low-orbiting observation satellites at a distance of up to 45,000 km, to intelligence UAVs or to mission aircraft via laser. From its position in geostationary orbit, the SpaceDataHighway system relays in near real-time to Earth the collected data, a process that would normally take several hours. It therefore enables the quantity of image and video data transmitted by observation satellites to be greatly increased and their mission plan can be re-programmed at any time and in just a few minutes.

This readiness to start service is a new milestone in the roadmap of Airbus' overall strategy to drive laser communications forward and invest in the next generation of infrastructure, which will be able to bring the benefits to airborne, ground and maritime connectivity. As such, it will be a key component of the Airbus Network for the Sky (NFTS) programme.

The European Data Relay System (EDRS) at the base of the SpaceDataHighway is a public-private partnership between the European Space Agency (ESA) and Airbus, with the laser terminals developed by Tesat-Spacecom and the DLR German Space Administration.

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