Amazon Leo (LE-04)

Ariane 64 Block 2 · Arianespace

Monday, November 23, 2026 at 12:00 AM UTC

Mission brief

What is happening

Arianespace is launching Amazon Leo (LE-04) on a Ariane 64 Block 2 from Ariane Launch Area 4 at Guiana Space Centre, French Guiana. It is a communications mission heading to Low Earth Orbit.

Why it matters

Constellation launches fly in batches and repeat often, which is what makes the cadence rather than any single flight the thing worth watching.

At a glance
Destination
Low Earth Orbit
Payload
Amazon Leo (LE-04)
Mission type
Communications
Rocket
Ariane 64 Block 2
Provider
Arianespace
Launch site
Ariane Launch Area 4
Programme
Amazon 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.

What changed

Every change to this schedule, logged as it happened. Most trackers only ever show you today's date.

  1. OCT 14 · 2:45 PM UTC
    Launch time announced
    Detected by RocketRune
  2. OCT 14 · 2:45 PM UTC
    Window closes 7 days earlier
    2026-11-30 00:00 UTC → 2026-11-23 00:00 UTC
    Detected by RocketRune
  3. OCT 14 · 2:45 PM UTC
    Window opens 7 days earlier
    2026-11-30 00:00 UTC → 2026-11-23 00:00 UTC
    Detected by RocketRune
  4. OCT 14 · 2:45 PM UTC
    Moved 7 days earlier
    2026-11-30 00:00 UTC → 2026-11-23 00:00 UTC
    Detected by RocketRune

11 more entries in the full history of this launch. RocketRune Pro shows every change and every dated note.

Schedule confidence

LOW

Treat this date as provisional.

Why does RocketRune rate it this way?
  • A launch date is set but no time has been published.
  • The provider has not committed to this date.
  • No launch window has been published, only a target time.
  • The launch time has held for 12 days.

This is a RocketRune assessment of how firm the published schedule is, not a prediction of launch success. It is calculated from the date precision and status published by the launch provider, plus the schedule changes RocketRune has recorded for this mission.

Where you can see it

BEST NEARBY VIEW
Kourou
Excellent · Look almost straight up
  • Nearly overhead, 83° above your horizon
  • Night launch, no lit plume but maximum contrast
  • 12 miles to the pad, northwest
CityDistanceLookElevation
KourouFrench Guiana12 mioverhead83°
CayenneFrench Guiana40 minorthwest66°

Direction and elevation are calculated from the pad position and the published launch time. Cloud cover is not included here because a forecast changes faster than this page updates. The live tracker scores the sky over your own location.

Launch site
Ariane Launch Area 4, Guiana Space Centre, French Guiana
Vehicle
Ariane 64 Block 2
Provider
Arianespace
Orbit
LEO
Payload
Amazon Leo (LE-04)
Status
To Be Determined
Vehicle height
63 m
Vehicle type flights
1
Vehicle type success rate
100.0%
Programme
Amazon Leo

Can you see this launch from where you are?

RocketRune works out the direction to look, how high the rocket will sit in your sky, the cloud forecast over you and whether the plume will be lit, then scores it out of 100.

Open the live tracker

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