UNITED LAUNCH ALLIANCE

Atlas V 551 | Amazon Leo (LA-06)

SUCCESSApr 28, 2026 at 00:53 UTCAtlas V 551 →
PADSpace Launch Complex 41
SITECape Canaveral SFS, FL, USA →
ORBITLow Earth Orbit
TYPECommunications
PROGRAMAmazon Leo

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.

MISSION
Amazon Leo (LA-06)
MISSION TYPE
Communications
TARGET ORBIT
Low Earth Orbit
PROGRAM
Amazon Leo
COUNTRY
USA
CONFIRMEDPrecision: Half-year
LAUNCH LIBRARY 2 PRIMARY
API ID: 7e89e423-6f47-40a0-b075-c6fc1d9cf228
Reported date: Apr 28, 2026 at 00:53 UTC
Last synced: 43 seconds ago
X (TWITTER) SEARCH
HOLD reported by @MikeCiannilli
This launch date and time are confirmed by the launch provider. Countdown is active.
SCHEDULE & STATUS HISTORY
STATUS CHANGEApr 28, 2026 at 12:58 UTC
IN FLIGHTSUCCESS
Source: Launch Library 2
STATUS CHANGEApr 28, 2026 at 01:07 UTC
GOIN FLIGHT
Source: Launch Library 2
STATUS CHANGEApr 20, 2026 at 14:55 UTC
TBDGO
Source: Launch Library 2
DELAYED(24.9 hrs)
Apr 20, 2026 at 14:55 UTC
Apr 27, 2026 00:00Apr 28, 2026 00:52 UTC
Source: Launch Library 2
DELAYED(3 days)
Apr 4, 2026 at 15:48 UTC
Apr 24, 2026 00:00Apr 27, 2026 00:00 UTC
Source: Launch Library 2
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MANUFACTURER
United Launch Alliance
VARIANT
551
FLIGHTS
21
SUCCESSES
21
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.

When is the Atlas V 551 | Amazon Leo (LA-06) launch?
The Atlas V 551 | Amazon Leo (LA-06) is scheduled for Tuesday, April 28, 2026 at 12:53 AM 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-06)?
The Atlas V 551 | Amazon Leo (LA-06) mission uses the Atlas V 551 rocket, manufactured by United Launch Alliance. The Atlas V 551 has flown 21 times with a 100% success rate.
Where is the Atlas V 551 | Amazon Leo (LA-06) launching from?
The launch takes place from Space Launch Complex 41 at Cape Canaveral SFS, FL, USA.
What orbit is Amazon Leo (LA-06) going to?
The Amazon Leo (LA-06) mission is targeting Low Earth Orbit.
Who is launching Amazon Leo (LA-06)?
The Atlas V 551 | Amazon Leo (LA-06) is operated by United Launch Alliance. It is part of the Amazon Leo program.
Can I watch the Atlas V 551 | Amazon Leo (LA-06) 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.
May 4, 2026 19:13 UTC
Launch completed successfully
Updated via Launch Library 2
Apr 28, 2026 12:58 UTC
Status changed: IN FLIGHT u2192 SUCCESS
Launch completed successfully (via Launch Library 2)
Apr 28, 2026 01:07 UTC
Status changed: GO u2192 IN FLIGHT
Launch IN FLIGHT (via Launch Library 2)
Apr 20, 2026 14:55 UTC
Launch delayed by 24.9 hours
Apr 27, 2026 00:00 UTC u2192 Apr 28, 2026 00:52 UTC (via Launch Library 2)
Apr 20, 2026 14:55 UTC
Status changed: TBD u2192 GO
Launch GO for launch (via Launch Library 2)
Apr 4, 2026 15:48 UTC
Launch delayed by 3 days
Apr 24, 2026 00:00 UTC u2192 Apr 27, 2026 00:00 UTC (via Launch Library 2)
Mar 23, 2026 18:10 UTC
Launch added to tracker
Imported from Launch Library 2 API
Mar 23, 2026 18:10 UTC
Launch date set: Apr 28, 2026 at 00:53 UTC
NET (No Earlier Than) confirmed by United Launch Alliance
Last data sync: 43 seconds ago
HOLD reported by @MikeCiannilli on X
Launch Library 243 seconds ago
Launch ID: 7e89e423-6f47-40a0-b075-c6fc1d9cf228
Open-Meteo Weather18 hours ago
Pad weather at 28.58, -80.58
YouTube Video Search2 weeks ago
3 videos discovered
X (Twitter) Search3 minutes ago
10 tweets
RECENT FROM X
@RocketLaunchOrg ✓1 month ago
ud83dude80 Atlas V 551 launch in T-1 hour! nud83cudff7ufe0f Amazon Leo (LA-06)nud83dudccd Cape Canaveral Space Force Stationnud83cudfaf Low Earth Orbit nn Find out more and watch livenhttps://t.co/UOyK59gBPd
1 ♥  1 ↻
View on X →
@space_traveller ✓1 month ago
Next up: An Atlas V 551 by United Launch Alliance will launch the Amazon LEO (LA-06) mission from SLC-41, Cape Canaveral Space Force Station. The launch is scheduled for 8:52 p.m. EDT (April 28, 0052 UTC, 02:52 CEST).nSee you, Spacers!nhttps://t.co/b3BRNidQlD
1 ♥  1 ↻
View on X →
@SpaceNewsFL ✓1 month ago
ud83dude80LAUNCH SCHEDULEDud83dude80FLORIDA ud83cudf34Amazon Leo (LA-06) GO Atlas! GO Centaur! GO Amazon Leo! n8:52 PM ET Monday 2026-April-27 nAtlas V 551 | United Launch Alliance, Cape Canaveral SFS, Florida, USAnnULA's Atlas V rocket will deliver another batch of satellite
2 ♥
View on X →
@SpaceNewsFL ✓1 month ago
ud83dude80LAUNCH SCHEDULEDud83dude80FLORIDA ud83cudf34Amazon Leo (LA-06) n8:52 PM ET Monday 2026-April-27 nLIVE: https://t.co/Rm8ktXMj1S nNew Glenn | Blue Origin Cape Canaveral SFS, Florida, USA
1 ♥
View on X →
@SpaceNewsFL ✓1 month ago
ud83dude80LAUNCH ud83dude80FLORIDA ud83cudf34Amazon Leo (LA-06) n8:52 PM ET Monday 2026-April-27 nLIVE: https://t.co/sPMTZQIbQ9 nNew Glenn | Blue Origin Cape Canaveral SFS, Florida, USAnnULA's Atlas V rocket will deliver another batch of satellites into low Earth orbit for
View on X →
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