Success
Amazon Leo (KF-02)
Communications
SpaceX(SpX)CommercialFalcon 9 Block 5
LEOorbit
Second of a three launches contract for Amazon's Kuiper low Earth orbit satellite internet constellation, with 24 satellites on board. 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.
Monday, August 11, 2025 at 12:35 PM
Replay
Flight Timeline
- T-38:00GO for Prop Load
- T-35:00Prop Load
- T-35:00Stage 1 LOX Load
- T-16:00Stage 2 LOX Load
- T-07:00Engine Chill
- T-01:00Tank Press
- T-01:00Startup
- T-00:45GO for Launch
- T-00:03Ignition
- T+00:00Liftoff
- T+01:12Max-Q
- T+02:25MECO
- T+02:29Stage 2 Separation
- T+02:37SES-1
- T+03:30Fairing Separation
- T+06:01Entry Burn Startup
- T+06:27Entry Burn Shutdown
- T+07:42Stage 1 Landing Burn
- T+08:13Stage 1 Landing
- T+08:31SECO-1
- T+52:43SES-2
- T+52:46SECO-2
- T+56:18Payload Deployment Sequence Start
- T+1:03:58Payload Deployment Sequence End
Links
Mission details
Amazon Leo is a satellite internet constellation aimed at providing high-speed, low-latency broadband connectivity to underserved and remote areas globally. The project involves deploying a constellation of low Earth orbit (LEO) satellites to create a satellite internet network capable of delivering reliable internet access.
Oct 16, 2023 — ongoing
Orbital Attempt
#7,025
SpX Mission
#549
Pad Launch
#327
Location Launch
#1,044
Designator
2025-171
Weather GO
90%
Weather Concerns
Cumulus Cloud Rule, Anvil Rules
Launch Window
NET
Aug 11, 2025, 12:35 PM
Precision
Minute
Schedule Changes
1 update
Falcon 9 Block 5 Specs
Falcon 9 is a two-stage rocket designed and manufactured by SpaceX for the reliable and safe transport of satellites and the Dragon spacecraft into orbit. The Block 5 variant is the fifth major interval aimed at improving upon the ability for rapid reusability.
Length
70 m
Diameter
3.65 m
Launch Mass
549 t
Thrust
7,607 kN
LEO Capacity
22,800 kg
GTO Capacity
8,300 kg
Launch Cost
$52M
Reusable
Yes
Maiden Flight
2018
Fastest Turnaround
1h 5m
Total Launches
586
Successful
585
Failed
1
Consecutive Success
288
Maiden flight: May 11, 2018
Social Flight Log
- Aug 11, 2025, 1:49 PM
Launch success.
Source - Aug 11, 2025, 12:35 PM
Liftoff.
Source - Aug 11, 2025, 12:18 PM
Unofficial Re-stream by SPACE AFFAIRS has started
Source - Aug 10, 2025, 5:27 PM
Setting GO.
Source - Aug 10, 2025, 1:30 PM
Scrubbed for the day due to recovery zone weather.
Source - Aug 10, 2025, 1:12 PM
Hold at T-30s.
Source - Aug 10, 2025, 12:56 PM
Unofficial Re-stream by SPACE AFFAIRS has started
Source - Aug 10, 2025, 12:20 PM
Now targeting Aug 10 at 13:13 UTC
Source - Aug 9, 2025, 5:44 PM
Setting GO.
Source - Aug 9, 2025, 4:20 PM
Updated launch weather, 55% GO.
Source - Aug 9, 2025, 1:59 PM
Adjusted launch window
Source - Aug 9, 2025, 1:46 PM
Scrubbed due to weather
Source - Aug 9, 2025, 1:29 PM
Unofficial Re-stream by SPACE AFFAIRS has started
Source - Aug 9, 2025, 12:49 PM
New T-0.
Source - Aug 9, 2025, 12:46 PM
New T-0.
Source - Aug 8, 2025, 12:48 PM
Tweaked T-0.
Source - Aug 8, 2025, 10:44 AM
Scrubbed for the day.
Source - Aug 8, 2025, 8:49 AM
New T-0.
Source - Aug 7, 2025, 3:42 PM
Updated launch weather, 40% GO.
Source - Aug 7, 2025, 1:51 PM
Scrubbed for the day.
Source - Aug 7, 2025, 1:44 PM
Holding at T-45:29.
Source - Aug 7, 2025, 1:19 PM
New T-0.
Source - Aug 7, 2025, 10:39 AM
Tweaked T-0.
Source - Aug 6, 2025, 5:09 PM
Weather is 80% favorable for launch.
Source - Aug 5, 2025, 6:37 PM
Weather is 85% favorable for launch.
Source - Jul 30, 2025, 8:32 PM
GO for launch.
Source - Jul 30, 2025, 2:54 PM
NET August 7.
Source - Jul 22, 2025, 3:32 PM
NET August.
Source - Dec 2, 2023, 7:28 AM
Adding launch NET 2025
Source
SpaceX
Space Exploration Technologies Corp., known as SpaceX, is an American aerospace manufacturer and space transport services company headquartered in Hawthorne, California. It was founded in 2002 by entrepreneur Elon Musk with the goal of reducing space transportation costs and enabling the colonization of Mars. SpaceX operates from many pads, on the East Coast of the US they operate from SLC-40 at Cape Canaveral Space Force Station and historic LC-39A at Kennedy Space Center. They also operate from SLC-4E at Vandenberg Space Force Base, California, usually for polar launches. Another launch site is being developed at Boca Chica, Texas.
Founded
2002
Administrator
CEO: Elon Musk
Total Launches
681
Successful
666
Failed
15
Pending
120
Consecutive Success
166
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.
Timezone
America/New_York
Local Launch Time
Aug 11, 2025, 8:35 AM
Total Launches
1,109
Total Landings
75
Coordinates
28.4889, -80.5778