Atlas V 551 | Amazon Leo (KA-01)

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.

Communications · Low Earth Orbit (LEO)

No booster details available.

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1. T−2.7SIgnition
2. T+1SLiftoff
3. T+4.1SSupersonic
4. T+34.6SMax-Q
5. T+45.6SBoosters Separation
6. T+3M4.8SFairing Separation
7. T+4M23.1SBECO
8. T+4M29.1SStage 2 Separation
9. T+4M39SSES-1
10. T+18M14.9SSECO-1

• Launch success.

  Cosmic_Penguin · 4/29/2025 · source

• Liftoff.

  Cosmic_Penguin · 4/28/2025 · source

• New T-0.

  Cosmic_Penguin · 4/28/2025 · source

• Updated launch weather.

  Cosmic_Penguin · 4/27/2025 · source

• Rescheduled for April 28.

  Cosmic_Penguin · 4/18/2025 · source

• NET April 28.

  Cosmic_Penguin · 4/12/2025 · source

• Reverted back to April TBD.

  Cosmic_Penguin · 4/12/2025 · source

• NET April 14 per marine navigation warnings, TBC.

  Cosmic_Penguin · 4/10/2025 · source

• Scrubbed for the day, next attempt TBD.

  Cosmic_Penguin · 4/10/2025 · source

• New T-0.

  Cosmic_Penguin · 4/10/2025 · source