First Sentinel-2B Images Delivered By Laser | Aero-News Network
Aero-News Network
RSS icon RSS feed
podcast icon MP3 podcast
Subscribe Aero-News e-mail Newsletter Subscribe

Airborne Unlimited -- Recent Daily Episodes

Episode Date

AMA Drone Report






Airborne-Unmanned w/AUVSI

Airborne On ANN

AMA 06.22.17

Airborne 06.19.17

Airborne 06.20.17

Airborne 06.21.17

Airborne 06.22.17

Airborne 06.23.17

Airborne-Unmanned 06.20.17


AMA 06.22.17

Airborne 06.19.17

Airborne 06.20.17

Airborne 06.21.17

Airborne 06.22.17

Airborne 06.23.17

Airborne-Unmanned 06.20.17

XPONENTIAL Innovation Preview --

Fri, Jun 16, 2017

First Sentinel-2B Images Delivered By Laser

Data Downlinked In Just Six Minutes

With the Sentinel-2B satellite close to beginning its working life in orbit, this latest Copernicus satellite has linked up to Alphasat by laser, across almost 24,000 miles of space, to deliver images of Earth just moments after they were captured.

The test, which was done as part of Sentinel-2B’s commissioning, included capturing a strip of images from Europe to North Africa and downlinking the data in just six minutes. This achievement is not only thanks to cutting-edge laser technology, but also the power of ESA’s partnerships with space industries and the European Union.

Following its launch on 7 March, Sentinel-2B is set to be commissioned on 15 June. It joins its twin, Sentinel-2A, which is already supplying a wealth of high-resolution images for the European Union’s Copernicus environmental monitoring programme.

The Sentinel-2 mission not only provides information to improve agricultural practices and map changes in land cover, but it also helps to monitor the world’s forests, detects pollution in lakes and coastal waters, and contributes to disaster mapping. Many of these applications rely on imaging the same area in quick succession.

The two Copernicus Sentinel-2 satellites circle on opposite sides of Earth. With each providing 290 km-wide swath, together they can image the globe every five days and image Europe every two to three days. Sometimes, however, information is needed quicker, or indeed continuously, and this is where the satellites’ lasers come in, complementing the standard ground station network.

Orbiting from pole to pole almost 50 miles up, the Sentinel-2 satellites transmit data to Earth routinely, but only when they pass over their ground stations in Europe. However, geostationary satellites have their ground stations in permanent view so they can immediately stream large volumes of to Earth.

The Sentinel-2 satellites are equipped with terminals to transmit data by laser to satellites in geostationary orbit such as Alphasat and the European Data Relay System (EDRS). These satellites then transmit the Sentinel-2 data to the ground. The Copernicus Sentinel-1 satellites also carry the same equipment.

Eric Monjoux, head of ESA’s Copernicus Ground Segment, said “EDRS has already increased delivery of Sentinel-1 data enormously and we can soon expect to see the same benefits for Sentinel-2 data.”

As well as being a remarkable technological achievement, this novel system is also thanks to the public–private partnership between ESA and industry. This latest test paves the way for even greater opportunities for the European Union, EDRS’ anchor customer, to have access to large volumes of data extremely quickly for services that improve daily lives and protect the environment.

“The laser link is a bit like an optical fiber in the sky that can connect the Sentinel-2 satellites back to Europe via geostationary satellites," said ESA’s Sentinel-2 system manager, Omar Sy. "The test, which is thanks to cooperation between teams at ESA, the German Space Operations Center in Oberpfaffenhofen, Tesat, Airbus and Inmarsat, has shown that everything is working well.

“This means that once all the commissioning is over, Sentinel-2B will be able to downlink huge amounts of data in a matter of moments via the EDRS ‘SpaceDataHighway’, which is the world’s first optical satellite communication network in geostationary orbit.”

(Image provided with ESA news release)



More News

Airborne-Unmanned 06.20.17: UAS Orgs v Bad Regs, Anti-Collision, Drone Race $$

Also: Solar-Powered UAS, NK Drone, UAS Survey, Brian Wynne Interview The team at AUVSI is staying plenty busy as they and 13 other organizations authored a letter to members of Con>[...]

AMA Drone Report 06.22.17: FAA Reauthorization, Rotor Riot Int'l, DRL on ESPN

Also: Drones at Oshkosh!, Drone Regulatory Effort, AMA Drone Report-Help Wanted, Aero-TV: MultiGP Drone Racing The House of Representatives has published initial language to reauth>[...]

Airborne 06.23.17: Airbus 'Racer', RANS 'Fly To Work', Boater v Floatplane

Also: House ATC Bill, Golda Cox, Boeing Forecast, Concorde Battery, C-130J-SOF, SpiceJet, Flt School Closure Airbus Helicopters has unveiled their ‘Racer’ -- which stan>[...]

Aero-News: Quote of the Day (06.26.17)

"At a time when reauthorizing the FAA should be paramount, it is neither a prudent nor responsible decision to introduce legislation that jeopardizes our standing as the world lead>[...]

Aero-News: Quote of the Day (06.25.17)

“The airline market in Africa has been growing slowly but steadily as the industry is becoming more liberalized and the infrastructure to support the growth is being put in p>[...]

blog comments powered by Disqus





© 2007 - 2017 Web Development & Design by Pauli Systems, LC