Latest Mission updates

Ariane 5 July 29, 2020

Launch readiness confirmed: Approval is given for Arianespace’s Ariane 5 flight on July 31

Decals for Flight VA253’s passengers and customers are installed on the Ariane 5 launch vehicle’s payload fairing during preparations at the Spaceport.

Arianespace’s fifth mission of 2020 has been given the “green light” for liftoff following today’s launch readiness review, which was conducted at the Spaceport in French Guiana.

A cutaway diagram showing Flight VA253’s payload configuration.

This milestone confirmed that the Ariane 5 launch vehicle and its three passengers – Galaxy 30 (G-30), the Mission Extension Vehicle-2 (MEV-2) and BSAT-4b – are flight-ready, along with the Spaceport’s infrastructure and the network of downrange tracking stations.

With approval granted, Ariane 5 also is cleared for rollout on July 30 from its Final Assembly Building to the ELA-3 launch zone. Liftoff will occur on July 31 during a 46-min. launch window opening at 6:30 p.m. local time in French Guiana.

Flight VA253: the sequence for success

Ariane 5 will deliver a total payload lift performance of approximately 10,468 kg. on the mission to geostationary transfer orbit (GTO), which is designated Flight VA253. This total factors in the three passengers, plus the workhorse vehicle’s multi-payload deployment system and integration hardware.

G-30 and MEV-2 – both produced by Northrop Grumman to serve the operational needs of Intelsat – are stacked together in the upper position of Ariane 5’s payload configuration. G-30 will be deployed first during the 47-minute flight sequence, followed by MEV-2.

To be released last as the mission’s lower passenger, BSAT-4b is being launched by Arianespace as part of a turnkey contract between the Japanese operator B-SAT and the satellite manufacturer, Maxar.

  • Larger versions of the photos above are available for downloading in the Gallery.


Launch window for Flight VA253:

 French Guiana Washington, D.C. Universal Time Paris Tokyo
6:30 p.m. and
7:16 p.m. on
July 31
5:30 p.m. and
6:16 p.m. on
July 31
21:30 and
22:16 on
July 31
11:30 p.m. and
12:16 a.m. on
July 31-Aug. 1
6:30 a.m. and
7:16 a.m. on
Aug. 1


More details are available in the VA253 launch kit:

Ariane Flight VA253
PDF / 1 MB

Northrop Grumman website:

Intelsat website:

Maxar website:

B-SAT website:

Ariane 5 July 25, 2020

Postponement of Flight VA253

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