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Atlas V 551 | Amazon Leo (LA-05)

April 4, 2026 at 5:46 AM UTC

Cape Canaveral SFS, FL, USA

Atlas V 551 | Amazon Leo (LA-05) launch image
Mission imagery · Atlas V 551

Launch details

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April 4, 2026 at 5:46 AM UTC

Status: Launch Successful · Live feed refreshes every 30 seconds

Space Launch Complex 41

Cape Canaveral SFS, FL, USA · 28.5834, -80.5830

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Launch site
Space Launch Complex 41

Cape Canaveral SFS, FL, USA

Launch probability
95%
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April 4, 2026 at 5:45 AM UTC
Window closes
April 4, 2026 at 6:14 AM UTC
Feed updated
April 6, 2026 at 7:04 AM UTC

Mission description

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. 29 satellites are carried on this launch.

Weather concern: Cumulus Cloud Rule
Vehicle

Atlas V 551

Atlas · 551

Height

59.7 m

Diameter

3.8 m

LEO capacity

18,850 kg

Successful launches

23

Launch complex

Space Launch Complex 41

Cape Canaveral SFS, FL, USA

Cape Canaveral Space Force Station (CCSFS) is an installation of the United States Space Force's Space Launch Delta 45, located on Cape Canaveral in Brevard County, Florida.

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Official links

Mission updates

Launch success.

April 4, 2026 at 6:25 AM UTC · Cosmic_Penguin

Liftoff.

April 4, 2026 at 5:46 AM UTC · Cosmic_Penguin

Official Webcast by United Launch Alliance has started

April 4, 2026 at 5:25 AM UTC · LL2

New T-0.

April 4, 2026 at 4:44 AM UTC · Cosmic_Penguin

Tweaked T-0.

April 3, 2026 at 10:35 PM UTC · Cosmic_Penguin