ArianespaceAriane 64 Block 2Ariane Launch Area 4, Guiana Space Centre, French Guiana
Amazon Leo (LE-04)
Launch window
No countdown — this launch time is not yet known to the minute.November 23, 2026Add to calendar
Image: ESA\CNES\ArianespaceArianeGroup\Optique Vidéo du CSG–T. Leduc
Summary
Arianespace's Ariane 64 Block 2 launches the Amazon Leo (LE-04) mission, carrying 35-40 satellites for a planned 3,276-satellite broadband constellation managed by Kuiper Systems LLC. The satellites will occupy three orbital layers between 590 and 630 kilometers.
- Watch
- No webcast announced yet.
- Vehicle
- Ariane 64 Block 2 · ArianespaceAmazon Leo
- Booster
- No booster details available.
- Mission
- Communications · Low Earth Orbit (LEO)for Amazon
- Milestone
- Planned as the 2nd Ariane 64 Block 2 flightArianespace's 329th launch5th this yearhumanity's 7,431st orbital launch attempt258th orbital launch attempt this year
Flight preview
Orbit: representative
Target from this vehicle's flown siblings at this pad. Not a catalogued object; this panel switches to the tracked orbit once the object is catalogued. Ascent drawn from padside's representative profile.
About this launch
Amazon Leo (LE-04) is expected to launch on an Arianespace Ariane 64 Block 2 from Ariane Launch Area 4, Guiana Space Centre, French Guiana on November 23, 2026. It is Arianespace's 329th launch, 5th this year and humanity's 7,431st orbital launch attempt. It is planned as the 2nd Ariane 64 Block 2 flight. The payload is bound for low Earth orbit (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. 35-40 satellites will be carried on each Ariane 6 launch.
News
Arianespace Targets 23 Nov Ariane 6 Return Following Reported Turbopump FixArianespace has announced that the next Ariane 6 launch will take place no earlier than 23 November, marking the rocket’s return to flight after ground testing reportedly revealed an issue with one of its turbopumps. The flight will carry 36 Amazon Leo satellites aboard an Ariane 64, the rocket’s four-booster configuration. It will be the […]
Rocket Report: Era of cheap launch is over? Astra sets early 2027. target for return"The customer got comfortable with a high reliability and a low price."
ESA Acknowledges Ariane 6 Delays Following Reports of Turbopump IssueThe European Space Agency (ESA) has confirmed that it is aware of delays affecting the Ariane 6 launch schedule following reports of an engine turbopump anomaly. French news outlet La Tribune first reported an issue with an unspecified Ariane 6 component on 17 September. According to the report, the additional checks were expected to disrupt […]
Pad
Ariane Launch Area 4, Guiana Space Centre, French Guiana
Planned as the 10th launch from Ariane Launch Area 4, 5th this year · 337th from Guiana Space Centre, French Guiana
9 launches from this pad · 336 from Guiana Space Centre, French Guiana
87 days after the previous launch from this pad
All launches from Guiana Space Centre, French GuianaOpen in maps
Updates
Questions
When does Amazon Leo (LE-04) launch?
Amazon Leo (LE-04) is scheduled on November 23, 2026.
Where can I watch Amazon Leo (LE-04) live?
No webcast has been announced yet.
What rocket is launching Amazon Leo (LE-04)?
Ariane 64 Block 2, flown by Arianespace. Ariane 64 Block 2 spec sheet
Where is Amazon Leo (LE-04) launching from?
Ariane Launch Area 4, Guiana Space Centre, French Guiana.
What orbit is Amazon Leo (LE-04) going to?
Low Earth Orbit (LEO), a communications mission.
Which program is Amazon Leo (LE-04) part of?
Amazon Leo. About Amazon Leo