Watch the Launch

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 6th from 10:16PM to 11PM EST (03:16-04:00 UTC on the 7th) Current T0: November 6th at 10:16PM EST (03:16 UTC on the 7th...

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

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. 8, 2025, 2:29 a.m.

NET November 14 UTC per marine navigation warnings.


Cosmic_Penguin • Nov. 7, 2025, 2:08 a.m.

Scrubbed due to re-occurrence of Atlas V booster liquid oxygen tank vent valve issue, new date TBD.


Cosmic_Penguin • Nov. 6, 2025, 10:17 p.m.

Updated launch weather, 50% GO.



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)

CEO: Tory Bruno Founded: 2006 Successes: 168 Failures: 0 Pending: 42

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

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…

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).

NASASpaceflight

Launch Roundup: Ariane 6 and New Glenn set to launch during busy week

This week’s launch manifest will feature nine missions launching on seven different rockets, including the… The post Launch Roundup: Ariane 6 and New Glenn set to launch during busy week appeared first on NASASpaceFlight.com.

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.

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 …

Cape Canaveral SFS, FL, USA

Space Launch Complex 41


Falcon 9
Success
1 day, 15 hours ago
Starlink Group 11-14
Space Launch Complex 4E - Vandenberg SFB, CA, USA

A batch of 28 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.


Falcon 9
Success
2 days, 11 hours ago
Starlink Group 6-81
Space Launch Complex 40 - Cape Canaveral SFS, FL, USA

A batch of 29 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.


Electron
Success
2 days, 17 hours ago
The Nation God Navigates (iQPS Launch 5)
Rocket Lab Launch Complex 1B - Rocket Lab Launch Complex 1, Mahia Peninsula, New Zealand

Synthetic aperture radar Earth observation satellite for Japanese Earth imaging company iQPS.


Ariane 62
Success
3 days, 16 hours ago
Sentinel-1D
Ariane Launch Area 4 - Guiana Space Centre, French Guiana

Sentinel-1D carries an advanced radar technology to provide an all-weather, day-and-night supply of imagery of Earth’s surface as part of the Sentine…


Long March 7A
Success
5 days, 9 hours ago
Yaogan 46
201 - Wenchang Space Launch Site, People's Republic of China

Classified Earth observation satellite officially reported as for "national resources/hydrology/meteorology surveying & disaster management" purposes.


LVM-3 (GSLV Mk III)
Success
6 days, 1 hour ago
CMS-03 (GSAT-7R)
Satish Dhawan Space Centre Second Launch Pad - Satish Dhawan Space Centre, India

Communications Satellite for the Indian Navy, replacing GSAT-7 for secure real-time links between Indian warships, submarines, aircraft, and shore-ba…


Falcon 9
Success
6 days, 7 hours ago
Bandwagon 4 (Dedicated Mid-Inclination Rideshare)
Space Launch Complex 40 - Cape Canaveral SFS, FL, USA

Dedicated rideshare flight to a mid-inclination orbit with dozens of small microsatellites and nanosatellites for commercial and government customers.


Falcon 9
Success
1 week ago
Starlink Group 11-23
Space Launch Complex 4E - Vandenberg SFB, CA, USA

A batch of 28 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.


Long March 2
Success
1 week ago
Shenzhou 21
Launch Area 4 (SLS-1 / 921) - Jiuquan Satellite Launch Center, People's Republic of China

Tenth crewed flight to the Chinese space station.


Falcon 9
Success
1 week, 2 days ago
Starlink Group 10-37
Space Launch Complex 40 - Cape Canaveral SFS, FL, USA

A batch of 29 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.