UNITED LAUNCH ALLIANCE

Atlas V 551 | Amazon Leo (LA-07)

Name: Atlas V 551 | Amazon Leo (LA-07)
Start: 2026-05-29T23:53:00+00:00
End: 2026-05-30T00:08:00+00:00
Location: Space Launch Complex 41

SUCCESS Atlas V 551 →

—

May 29, 2026 at 23:53 UTC

Low Earth Orbit Communications Cape Canaveral SFS, FL, USA 100% success

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Mission Control3D trajectory · Live telemetry · AI narrator · Booster tracking

PADSpace Launch Complex 41

SITECape Canaveral SFS, FL, USA →

ORBITLow Earth Orbit

TYPECommunications

PROGRAMAmazon Leo

MISSION OVERVIEW

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.

LAUNCH DETAILS

VEHICLE

Atlas V 551

AGENCY

United Launch Alliance

MISSION

Amazon Leo (LA-07)

MISSION TYPE

Communications

TARGET ORBIT

Low Earth Orbit

LAUNCH PAD

Space Launch Complex 41

LAUNCH SITE

Cape Canaveral SFS, FL, USA

PROGRAM

Amazon Leo

COUNTRY

USA

LAUNCH TIME VERIFICATION

CONFIRMEDPrecision: Half-year

LAUNCH LIBRARY 2 PRIMARY

API ID: ff0a6a32-6513-4e85-9fd8-a2d022add74d

Reported date: May 29, 2026 at 23:53 UTC

Last synced: 44 seconds ago

This launch date and time are confirmed by the launch provider. Countdown is active.

SCHEDULE & STATUS HISTORY

STATUS CHANGEMay 30, 2026 at 00:47 UTC

IN FLIGHT → SUCCESS

Source: Launch Library 2

STATUS CHANGEMay 29, 2026 at 23:53 UTC

GO → IN FLIGHT

Source: Launch Library 2

DELAYED(0.3 hrs)

May 29, 2026 at 23:37 UTC

May 29, 2026 23:35 → May 29, 2026 23:53 UTC

Source: Launch Library 2

DELAYED(0 hrs)

May 29, 2026 at 23:12 UTC

May 29, 2026 23:33 → May 29, 2026 23:35 UTC

Source: Launch Library 2

DELAYED(7.1 hrs)

May 20, 2026 at 15:47 UTC

May 29, 2026 16:27 → May 29, 2026 23:33 UTC

Source: Launch Library 2

DELAYED(6.9 days)

May 16, 2026 at 04:13 UTC

May 22, 2026 18:56 → May 29, 2026 16:27 UTC

Source: Launch Library 2

STATUS CHANGEMay 11, 2026 at 18:13 UTC

TBD → GO

Source: Launch Library 2

DELAYED(18.9 hrs)

May 11, 2026 at 18:13 UTC

May 22, 2026 00:00 → May 22, 2026 18:56 UTC

Source: Launch Library 2

+ 1 earlier changes

LAUNCH MAP

PAD WEATHER

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VEHICLE — Atlas V 551 →

MANUFACTURER

United Launch Alliance

VARIANT

551

FLIGHTS

SUCCESSES

SUCCESS RATE

100%

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.

LAUNCH VIDEOS

ARTICLES & COVERAGE

🔗 Rocket Launch: Amazon Leo 7 🔗 Watch live: ULA Atlas 5 rocket launches from Cape Canaveral with 29 Amazon Leo satellites 🔗 New Glenn Anomaly, ULA Launches Penultimate Atlas V 551 – The Flame Trench

MORE INFO

🔗 ATLAS V AMAZON LEO 7

FREQUENTLY ASKED QUESTIONS

When is the Atlas V 551 | Amazon Leo (LA-07) launch?

The Atlas V 551 | Amazon Leo (LA-07) is scheduled for Friday, May 29, 2026 at 11:53 PM UTC. This is the NET (No Earlier Than) time and may be subject to change. Current status: SUCCESS.

What rocket is being used for Amazon Leo (LA-07)?

The Atlas V 551 | Amazon Leo (LA-07) mission uses the Atlas V 551 rocket, manufactured by United Launch Alliance. The Atlas V 551 has flown 22 times with a 100% success rate.

Where is the Atlas V 551 | Amazon Leo (LA-07) launching from?

The launch takes place from Space Launch Complex 41 at Cape Canaveral SFS, FL, USA.

What orbit is Amazon Leo (LA-07) going to?

The Amazon Leo (LA-07) mission is targeting Low Earth Orbit.

Who is launching Amazon Leo (LA-07)?

The Atlas V 551 | Amazon Leo (LA-07) is operated by United Launch Alliance. It is part of the Amazon Leo program.

Can I watch the Atlas V 551 | Amazon Leo (LA-07) launch live?

Yes. Visit the launch detail page on Space Launch Live for embedded YouTube webcasts, replay videos, and links to live coverage from SpaceX, NASA, NASASpaceflight, and other channels.

LAUNCH TIMELINE

Jun 5, 2026 00:02 UTC

Launch completed successfully

Updated via Launch Library 2

May 30, 2026 00:47 UTC

Status changed: IN FLIGHT u2192 SUCCESS

Launch completed successfully (via Launch Library 2)

May 29, 2026 23:53 UTC

Status changed: GO u2192 IN FLIGHT

Launch IN FLIGHT (via Launch Library 2)

May 29, 2026 23:37 UTC

Launch delayed by 0.3 hours

May 29, 2026 23:35 UTC u2192 May 29, 2026 23:53 UTC (via Launch Library 2)

May 29, 2026 23:12 UTC

Launch delayed by 0 hours

May 29, 2026 23:33 UTC u2192 May 29, 2026 23:35 UTC (via Launch Library 2)

May 20, 2026 15:47 UTC

Launch delayed by 7.1 hours

May 29, 2026 16:27 UTC u2192 May 29, 2026 23:33 UTC (via Launch Library 2)

May 16, 2026 04:13 UTC

Launch delayed by 6.9 days

May 22, 2026 18:56 UTC u2192 May 29, 2026 16:27 UTC (via Launch Library 2)

May 11, 2026 18:13 UTC

Launch delayed by 18.9 hours

May 22, 2026 00:00 UTC u2192 May 22, 2026 18:56 UTC (via Launch Library 2)

May 11, 2026 18:13 UTC

Status changed: TBD u2192 GO

Launch GO for launch (via Launch Library 2)

Apr 28, 2026 12:58 UTC

Launch moved up by 39 days

Jun 30, 2026 00:00 UTC u2192 May 22, 2026 00:00 UTC (via Launch Library 2)

Apr 25, 2026 11:41 UTC

Launch added to tracker

Imported from Launch Library 2 API

Apr 25, 2026 11:41 UTC

Launch date set: May 29, 2026 at 23:53 UTC

NET (No Earlier Than) confirmed by United Launch Alliance

LIVE DATA SOURCES

Last data sync: 44 seconds ago

Launch ID: ff0a6a32-6513-4e85-9fd8-a2d022add74d

Pad weather at 28.58, -80.58

10 tweets

RECENT FROM X

ULA's Amazon Leo (LA-07) sits on the pad… would not want to stand here for the launch, I have a couple of mangled remote cameras to prove it 🙁 2/2 https://t.co/WexqBaVWpM

162 ♥ 7 ↻

View on X →

ULA's Amazon Leo (LA-07) sits on the pad… would not want to stand here for the launch, I have a couple of mangled cameras to prove it 🙁 2/2 https://t.co/xtnwIZWgkG

7 ♥

View on X →

ud83dudd2d LAUNCH TONIGHT u2014 T-5.8 hoursnud83dude80 Atlas V 551 | Amazon Leo (LA-07) | Atlas V 551nud83dudccd SLC-41 | WEST COAST ud83cudf04nud83dudcc5 Fri, May 29, 7:33 PM EDTnud83cudfaf ud83dudfe2 Go for launchnu2601ufe0f Weather: 30% gonCheck your visibility now ud83dudc47n

1 ♥ 1 ↻

View on X →

@LakesFirearmsTr Well. I was only telling you that because it's a good sign for the Amazon Leo (LA-07) launch this evening.nnWeather is going to the biggest determining factor.

1 ♥

View on X →

ud83dudc40Launch Visibilty for Amazon Leo (LA-07)ud83dude80nWeather officer confirms that all conditions remain observed GO for liftoff of the Atlas V rocket at nNOW: 7:35 p.m. EDT (2335 UTC).nLaunch livestream https://t.co/fXaGl0zS1K https://t.co/cARhSj62Pn

View on X →

BROWSE BY

United Launch Alliance92 launches Atlas311 launches Cape Canaveral SFS, FL, USALaunch Site

Mission Profile

Amazon Leo (LA-07) was a Atlas V 551 mission operated by United Launch Alliance that lifted off from Space Launch Complex 41, Cape Canaveral SFS, FL, USA on May 29, 2026. The flight carried its payload on a communications mission to Low Earth Orbit. It was flown as part of the Amazon Leo program. The launch was a success.

Atlas V 551 | Amazon Leo (LA-07)

Mission Profile

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