ViaSat 2 & Eutelsat 172B

Launch Time
Thu Jun 01, 2017 23:45 UTC

Flight VA237.


Ariane 5 ECA
Image Credit: Arianespace
Status: Retired
Price: $200.0 million
Liftoff Thrust: 15,120 kN
Payload to LEO: 21,000 kg
Payload to GTO: 10,500 kg
Stages: 2
Strap-ons: 2
Rocket Height: 53.0 m
Fairing Diameter: 5.4 m
Fairing Height: 17.0 m

Mission Details


ViaSat-2 was the first ViaSat satellite to be launched by Arianespace.

ViaSat Inc., a new customer for Arianespace and its Ariane 5 launch vehicle, provides international communities with broadband internet connectivity, accessible on land, at sea, and in the air, at competitive rates in relation to other satellite or terrestrial services.

The ViaSat-2 satellite system – built by Boeing in El Segundo, California, using a 702HP platform – should bring considerable improvements in terms of speed, lower costs, and extended broadband coverage within its footprint, as well as along the main aeronautical and maritime routes linking North America and Europe (Atlantic Ocean).

ViaSat-2 will also provide nearly twice the capacity offered by previous generations of ViaSat satellites, along with seven times as much coverage. This capability comes from its suite of Ka-band transponders.

Positioned at 70 degrees West, ViaSat-2 will provide a throughput of approximately 300 Gbps in Ka-band over its coverage zone, which includes North and Central America, plus the Caribbean, northern South America, and aeronautical and maritime routes in the Atlantic Ocean between North America and Europe.

Payloads: 1
Total Mass: 6,418.0 kg
Geostationary Transfer Orbit

Eutelsat 172B

EUTELSAT 172B will – via its Ku and C-band transponders – deliver increased capacity for fast-growing applications that include in-flight and maritime connectivity, cellular backhaul, corporate networks, video distribution, and government services. It will be located at 172 degrees East, a key neighborhood providing exceptional Asia-Pacific reach over land and sea, from Alaska to Australia.

Payloads: 1
Total Mass: 3,551.0 kg
Geostationary Transfer Orbit


ELA-3, Guiana Space Centre, French Guiana, France



31st orbital launch attempt


250th mission
6th mission of 2017
242nd successful mission
33rd consecutive successful mission

Ariane 5

93rd mission
3rd mission of 2017
89th successful mission
79th consecutive successful mission