Galileo Satellite SAR Package Activated

Press Release
Wednesday, January 23, 2013
Galileo in Transit: Photo credit ESA

Galileo’s search and rescue system (SAR) passes first space test to begin major expansion of the Cospas–Sarsat network.

The second pair of Europe’s Galileo navigation satellites – launched together on 12 October last year – are the first of the constellation to host SAR search and rescue repeaters. These can pick up UHF signals from emergency beacons aboard ships and aircraft or carried by individuals, then pass them on to local authorities for rescue.

Cospas is a Russian acronym for ‘Space System for the Search of Vessels in Distress’, with Sarsat standing for ‘Search and Rescue Satellite-Aided Tracking’. Ground stations – known as Local User Terminals – pinpoint the source of distress calls using signals relayed by participating satellites, then alert local authorities.

Once the satellites reached their 23 222 km-altitude orbits, a rigorous test campaign began. The turn of the SAR repeater aboard the third Galileo satellite came on 17 January. “At this stage, our main objective is to check the repeater has not been damaged by launch,” explains ESA’s Galileo SAR engineer Igor Stojkovic. The following day involved sending a signal to the repeater using the UHF antenna at ESA’s Redu Centre in Belgium, then picking up the reply from our L-band antenna.”

Redu’s antenna is 20 m in diameter, so the shape of the relayed signal was captured in great detail, out of all proportion to surrounding noise.
“We can precisely measure its power, the time the relay took and so on,” adds Igor.

More detailed system testing will follow, to completely prove this new type of SAR payload in orbit.
 

Maritime Reporter March 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Technology

ClassNK Releases EEDI Verification Software – Free

Japanese classification society ClassNK says it offers its Minimum Propulsion Power Calculation Software and ISO-based Progressive Speed Trial Analysis Software

Three NOAA scientists honored by White House

The White House yesterday awarded three NOAA scientists with Presidential Early Career Awards for Scientists and Engineers. The award is the highest honor given

Colfax's Acquisition of Victor Technologies Complete

ESAB has announced that Colfax Corporation has completed the previously announced acquisition of Victor Technologies Holdings, Inc. Victor is a preeminent global manufacturer of cutting,

Maritime Safety

Korean Ferry Sinking: Number Missing Increased Threefold

More than 300 people were missing after a ferry sank off South Korea, the coastguard said on Wednesday, with a three-fold increase in the number of passengers unaccounted

Hong Kong Tin Hau Festival

The Tin Hau Festival at Tai Miu Wan will be celebrated this year on 22 April 2014. Coxswains, owners and operators of local vessels are advised that arrangements

Fire Aboard US Warship Transiting Atlantic Ocean

U.S. Fleet Forces Command inform that a fire broke out aboard 'USS Hue City' (CG 66) as the ship was transiting the Atlantic.
 Hue City had departed Mayport, Fla.

 
 
Maritime Security Navigation Offshore Oil Pipelines Pod Propulsion Port Authority Ship Repair Ship Simulators Sonar Winch
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.1738 sec (6 req/sec)