Atlas V 551 — mission imagery
Back to launches
Success

Amazon Leo (KA-01)

Atlas V 551United Launch AllianceSpace Launch Complex 41
Monday, April 28, 2025 · 11:01 PM UTCAdd to Calendar

This mission is complete.

Vehicle

Atlas V 551

Profile →

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...

Height59.7 m
LEO Payload18,850 kg
Launches211
Successes173

Provider

United Launch Alliance

Profile →

USA • Founded 2006

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 spa...

Mission Brief

Amazon Leo, formerly known as Project Kuiper, is a mega constellation of satellites in Low Earth Orbit that will offer broadband internet access, this constellation will be managed by Kuiper Systems LLC, a subsidiary of Amazon. This constellation is planned to be composed of 3,276 satellites. The satellites are projected to be placed in 98 orbital planes in three orbital layers, one at 590 km, 610 km and 630 km altitude. 27 satellites are carried on this launch.

PayloadAmazon Leo (KA-01)
OrbitLow Earth Orbit
CustomerAmazon Leo
Stages2
PadSpace Launch Complex 41, Cape Canaveral SFS, FL, USA
WeatherCumulus Cloud Rule, Anvil Cloud Rules, Surface Electric Fields Rule, N/A

Mission Timeline

11 / 11100%
Site lock

Launch Site

Space Launch Complex 41, Cape Canaveral SFS, FL, USA

LAUNCH SITE
28.583°N, 80.583°W

Weather

Condition
Cumulus Cloud Rule, Anvil Cloud Rules, Surface Electric Fields Rule
Temperature
N/A
Wind
N/A
GO Probability
75%

Schedule History

No delays or schedule changes recorded.