Posted: Tuesday, December 5, 2017
For its 11th launch of the year, and the sixth Ariane 5 liftoff from the Guiana Space Center (CSG) in French Guiana during 2017, Arianespace will orbit four more satellites for the Galileo constellation.
This mission is being performed on behalf of the European Commission under a contract with the European Space Agency (ESA).
For the second time, an Ariane 5 ES version will be used to orbit satellites in Europe's own satellite navigation system. At the completion of this flight, designated Flight VA240 in Arianespace's launcher family numbering system, 22 Galileo spacecraft will have been launched by Arianespace with Soyuz and Ariane 5 launchers.
A final Ariane 5 ES mission will deploy four additional Galileo constellation satellites in 2018, after which Ariane 6 takes over from 2020-2021 – with its initial two Galileo launches contracted by ESA on behalf of the European Commission in September 2017
The Flight VA240 will be from Ariane Launch Complex No. 3 (ELA 3) in Kourou, French Guiana.
Date and time
Liftoff is planned on Thursday, December 12, 2017 at exactly:
3:36:07 p.m., Kourou time
1:36:07 p.m., Washington, D.C. time
18:36:07, Universal Time (UTC)
7:36:07 p.m., Paris time
The nominal duration of the mission (from liftoff to separation of the satellites) is:
3 hours, 55 minutes and 45 seconds.
The Launch Readiness Review (LRR) will take place on Friday, December 8, 2017 in Kourou, to authorize the start of operations for the final countdown.
Galileo is Europe's own global navigation satellite system. Under civilian control, Galileo offers guaranteed high-precision positioning around the world. Its initial services began in December 2016, allowing users equipped with Galileo-enabled devices to combine Galileo and GPS data for better positioning accuracy.
The complete Galileo constellation will comprise a total of 24 operational satellites (along with spares); 18 of these satellites already have been orbited by Arianespace.
SA transferred formal responsibility for oversight of Galileo in-orbit operations to the GSA (European GNSS Agency) in July 2017.
Therefore, as of this launch, the GSA will be in charge of the operation of the Galileo satellite navigation systems on behalf of the European Union. GSA will be responsible for operating these satellites as soon as they separate from the launcher. Satellite positioning operations and system operation will be carried out in conjunction with ESA.
The Galileo satellites are built by prime contractor OHB System in Bremen, Germany, with the payloads supplied by UK-based Surrey Satellite Technology Ltd (SSTL), which is 99% owned by Airbus Defence and Space.
For further information, download the Flight VA240 Launch Kit by clicking here:
To watch a live, high-speed online transmission of the launch (including commentary in French and English from the launch site), go to arianespace.com on December 12 beginning 15 minutes before liftoff.
You also can follow the launch live on your iPhone or iPad (the Arianespace HD app is free).
Arianespace uses space to make life better on Earth by providing launch services for all types of satellites into all orbits. It has orbited more than 550 satellites since 1980, using its family of three launchers, Ariane, Soyuz and Vega, from launch sites in French Guiana (South America) and Baikonur, Kazakhstan.
Arianespace is headquartered in Evry, near Paris, and has a technical facility at the Guiana Space Center, Europe's Spaceport in French Guiana, plus local offices in Washington, D.C., Tokyo and Singapore.
Arianespace is a subsidiary of ArianeGroup, which holds 74% of its share capital, with the balance held by 17 other shareholders from the European launcher industry.
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