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Additional Media

Watch live: ULA Atlas 5 launches ViaSat-3 F2 communications satellite

Watch live coverage from Cape Canaveral as United Launch Alliance launches an Atlas 5 rocket with a communications satellite for California-based communications company, Viasat. Liftoff of the ViaSat-...

ULA Launches Atlas V 551 Viasat-3 F2

ULA Atlas V launch of the Viasat-3 mission from SLC-41. Launch window: November 13th from 10:04PM to 10:48PM EST (03:04-03:48 UTC on the 14th) Current T0: November 13th at 10:04:00PM EST (03:04:00 UT...

Atlas V ViaSat-3 F2

ULA's Atlas V is launching the ViaSat-3 Flight 2 ultra-high-capacity broadband spacecraft for Viasat, a global technology company helping businesses, governments and communities transform their world through connectivity. Once in service, ViaSat-3 Flight 2 is expected to more than double the bandwid...

ViaSat-3 F2 (ViaSat-3 EMEA)

Overview

Destination: Geostationary Transfer Orbit
Mission: Communications

Geostationary Transfer Orbit Space Launch Complex 41 Cape Canaveral SFS, FL, USA Probability: 99%

The ViaSat-3 is a series of three Ka-band satellites is expected to provide vastly superior capabilities in terms of service speed and flexibility for a satellite platform. Each ViaSat-3 class satellite is expected to deliver more than 1-Terabit per second of network capacity, and to leverage high levels of flexibility to dynamically direct capacity to where customers are located.

Telemetry

Launch trajectory and telemetry simulations provided by Flight Club - a rocket launch simulator and orbital trajectory visualiser for all things space!

Updates

Cosmic_Penguin • Nov. 3, 2025, 2:17 p.m.

Updated launch weather, 95% GO.


Cosmic_Penguin • May 1, 2025, 7:26 p.m.

NET late summer.


Cosmic_Penguin • Nov. 6, 2025, 3:19 a.m.

Hold at T-4 minutes.


Cosmic_Penguin • Nov. 6, 2025, 3:52 a.m.

Scrubbed for the day due to valve issue; 24 hours recycle.



Atlas V 551

Family:
Configuration: 551

Atlas V is an expendable launch system in the Atlas rocket family. It was formerly operated by Lockheed Martin and is now operated by United Launch Alliance (ULA), a joint venture with Boeing. Each Atlas V rocket uses a Russian-built RD-180 engine burning kerosene and liquid oxygen to power its first stage and an American-built RL10 engine burning liquid hydrogen and liquid oxygen to power its Centaur upper stage. The RD-180 engines are provided by RD Amross, while Aerojet Rocketdyne provides both the RL10 engines and the strap-on boosters used in some configurations. The standard payload fairing sizes are 4 or 5 meters in diameter and of various lengths. Fairings sizes as large as 7.2 m in diameter and up to 32.3 m in length have been considered. The rocket is assembled in Decatur, Alabama and Harlingen, Texas.

Specifications
  • Minimum Stage
    1
  • Max Stage
    2
  • Length
    59.7 m
  • Diameter
    3.8 m
  • Fairing Diameter
    5.4 m
  • Launch Mass
    573.0 T
  • Thrust
    12269.0 kN
Family
  • Name
    Atlas V 551
  • Family
  • Variant
    551
  • Alias
  • Full Name
    Atlas V 551
Payload Capacity
  • Launch Cost
    $153000000
  • Low Earth Orbit
    18850.0 kg
  • Geostationary Transfer Orbit
    8890.0 kg
  • Direct Geostationary
    3850.0 kg
  • Sun-Synchronous Capacity

United Launch Alliance

United Launch Alliance

(ULA)

Interim CEO: John Elbon Founded: 2006 Successes: 175 Failures: 0 Pending: 36

Agency Type:

United Launch Alliance (ULA) is a joint venture of Lockheed Martin Space Systems and Boeing Defense, Space & Security. ULA was formed in December 2006 by combining the teams at these companies which provide spacecraft launch services to the government of the United States. ULA launches from both coasts of the US. They launch their Atlas V vehicle from LC-41 in Cape Canaveral and LC-3E at Vandeberg. Their Delta IV launches from LC-37 at Cape Canaveral and LC-6 at Vandenberg.

INFO WIKI

Related News

SpaceNews

ViaSat-3 F2 delivered to Florida for October launch

TAMPA, Fla. — Viasat’s second ViaSat-3 satellite has arrived in Florida for a launch in the second half of October, giving the company another chance to operate a terabit-per-second broadband powerhouse from geostationary orbit. The post …

Spaceflight Now

ViaSat-3 F2 satellite arrives in Florida ahead of late October launch

The spacecraft will launch onboard a United Launch Alliance Atlas 5 551 rocket from Cape Canaveral Space Force Station. It’s built on Boeing’s 702MP+ satellite bus.

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Spaceflight Now

Live coverage: ULA to launch ViaSat-3 communications satellite on Atlas 5 rocket from Cape Canaveral

The mission is the second of three planned spacecraft that Viasat plans to operate in geostationary orbit. United Launch Alliance is targeting liftoff from pad 41 at Cape Canaveral Space Force Station at 10:24 p.m. EST (0324 UTC).

Spaceflight Now

Live coverage: Atlas 5 makes another try to launch ViaSat-3 F2 communications satellite

United Launch Alliance is counting down to a second launch attempt for an Atlas 5 rocket carrying the ViaSat-3 F2 satellite. Liftoff from pad 41 at Cape Canaveral Space Force Station is scheduled for 10:16 p.m. EST (0316 UTC) at the openin…

Cape Canaveral SFS, FL, USA

Space Launch Complex 41


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