Amazon Leo (LA-08)

Slip history

No changes since we started tracking on Sat 10 Oct 2026, 10:32 UTC.

1. Thu 2 Jul 2026, 05:35 UTCLL2 update

   Launch success.

   Read the source update
2. Thu 2 Jul 2026, 04:30 UTCLL2 update

   Liftoff.

   Read the source update
3. Thu 2 Jul 2026, 04:11 UTCLL2 update

   New T-0.

   Read the source update
4. Thu 2 Jul 2026, 04:03 UTCLL2 update

   Official Webcast by United Launch Alliance has started

   Read the source update
5. Thu 2 Jul 2026, 03:20 UTCLL2 update

   Updated launch weather, 85% GO.

   Read the source update
6. Thu 2 Jul 2026, 02:54 UTCLL2 update

   New T-0.

   Read the source update
7. Thu 18 Jun 2026, 16:14 UTCLL2 update

   Moved up to July 2.

   Read the source update
8. Fri 12 Jun 2026, 16:09 UTCLL2 update

   NET July 3.

   Read the source update

Mission

Amazon Leo (LA-08) on Atlas V 551 from Space Launch Complex 41. Launch time, status and recorded date changes from Launch Library 2.

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 type

Communications

Orbit

Low Earth Orbit

Programmes: Amazon Leo

Launch-site file imagery

Launch timeline

Times are relative to liftoff.

1. T-2.7 sThu 2 Jul, 06:30 CEST

   Ignition

   Start of the engine ignition sequence

2. T+1 sThu 2 Jul, 06:30 CEST

   Liftoff

   First upwards movement of the rocket

3. T+34.9 sThu 2 Jul, 06:30 CEST

   Supersonic

   Vehicle is supersonic

4. T+52.8 sThu 2 Jul, 06:31 CEST

   Max-Q

   Maximum dynamic pressure

5. T+1 min 46.6 sThu 2 Jul, 06:32 CEST

   Boosters Separation

   Separation of the side boosters

6. T+3 min 5.2 sThu 2 Jul, 06:33 CEST

   Fairing Separation

   Separation of the payload fairing

7. T+4 min 21.9 sThu 2 Jul, 06:34 CEST

   BECO

   Booster Engine Cutoff

8. T+4 min 27.9 sThu 2 Jul, 06:34 CEST

   Stage 2 Separation

   Separation of the second stage from the first

9. T+4 min 37.9 sThu 2 Jul, 06:34 CEST

   SES-1

   First start of the second engine

10. T+18 min 21 sThu 2 Jul, 06:48 CEST

    SECO-1

    First cut-off of the second engine

11. T+21 min 10 sThu 2 Jul, 06:51 CEST

    Payload Deployment Sequence Start

    Start of the payload deployment sequence

12. T+37 min 41 sThu 2 Jul, 07:07 CEST

    Payload Deployment Sequence End

    End of the payload deployment sequence.

13. T+54 min 52.6 sThu 2 Jul, 07:25 CEST

    SES-2

    Second start of the second engine

14. T+55 min 2.3 sThu 2 Jul, 07:25 CEST

    SECO-2

    Second cut-off of the second engine

Launch pad

Space Launch Complex 41

Cape Canaveral SFS, FL, USA (US)

Coordinates: 28.58341025, -80.58303644