Atlas 5 Family rocket variant.
Performance data not available.
United Launch Alliance described the AEHF-4 mission as using an Atlas V 551 launch vehicle.
ULA will use the Atlas V 551 variant, equipped with a 5-meter payload fairing and five strap-on boosters, to lift the ViaSat-3 satellite.
The Atlas V 551 will cut orbit-raising time for the ViaSat-3 satellite by at least half, enabling the satellite to reach the geostationary arc about 36,0 m up in three months or less.
The Atlas V 551 configuration provides the performance to deliver a ViaSat-3 satellite into a high-energy geostationary transfer orbit where the satellite can begin on-orbit operations faster than with other available launch vehicles.
The U.S. Air Force selected the Atlas V 551 configuration with five strap-on solid boosters for enhanced geostationary transfer orbit placement.
A United Launch Alliance Atlas V 551 rocket was scheduled to launch the Space Test Program-3 (STP-3) mission for the U.S. Space Force’s Space Systems Command on 2021-11-09.
Northrop Grumman provided five Graphite Epoxy Motors (GEM) 63 solid rocket boosters for the Atlas V 551 that launched STP-3.
A United Launch Alliance Atlas V 551 rocket launched the SILENTBARKER/NROL-107 mission from Space Launch Complex-41 at Cape Canaveral Space Force Station on 2023-09-10.
A United Launch Alliance Atlas V 551 rocket launched the SILENTBARKER/NROL-107 mission on 2023-09-10 at 8:47 a.m. EDT (5:47 a.m. PDT).
An Atlas V 551 rocket configured with five side-mounted solid rocket boosters will utilize several launch optimization features to place the ViaSat-3 Flight 2 spacecraft into a geosynchronous transfer orbit.
United Launch Alliance plans to launch the Atlas V 551 rocket carrying the ViaSat-3 Flight 2 mission on November 3, 2025.
The launch of a United Launch Alliance Atlas V 551 rocket carrying the ViaSat-3 Flight 2 mission for Viasat is planned for no earlier than November 3, 2025.
The launch of a United Launch Alliance (ULA) Atlas V 551 rocket carrying the ViaSat-3 Flight 2 mission is planned for no earlier than Wednesday, November 5, 2025.
United Launch Alliance moved its Atlas V 551 rocket to the launch pad in anticipation of sending the ViaSat-3 F2 broadband satellite into space.
An Atlas V 551 rocket will utilize several launch optimization features to place the ViaSat-3 Flight 2 spacecraft into a geosynchronous transfer orbit.
The launch of the Atlas V 551 rocket carrying the ViaSat-3 Flight 2 mission is planned for no earlier than November 3, 2025.
The Atlas V 551 rocket is configured with five side-mounted solid rocket boosters and is designed to place the ViaSat-3 Flight 2 spacecraft into a geosynchronous transfer orbit.
The launch day for ViaSat-3 F2 is taking place.
The Atlas V 551 rocket launched the ViaSat-3 F2 ultra-high-capacity broadband spacecraft to a geosynchronous transfer orbit.
The fourth launch of the United Launch Alliance Atlas V 551 rocket carrying the Leo 4 satellites for Amazon Leo is planned for December 15, 2025, pending range approval.