Amazon's LE-03 mission will deploy a record 36 Leo satellites on Ariane 6 using upgraded P160C boosters, marking the heaviest payload ever for an Ariane rocket. The launch advances the constellation past 330 satellites already in orbit while delivering €2.8 billion in projected EU GDP impact and supporting thousands of jobs.
Amazon's next launch on Ariane 6, known as LE-03, is scheduled for Wednesday, June 17 at 7:53 a.m. ET / 11:53 a.m. UTC from Europe's Spaceport in Kourou, French Guiana. The flight will carry a record payload of 36 Amazon Leo satellites, marking the heaviest lift yet performed by any Ariane rocket while bringing the total number of satellites orbited via Arianespace to 100 after three missions wrapped up in under five months.
This upcoming LE-03 flight represents the largest cargo an Ariane vehicle has ever delivered to orbit. It will add another 36 satellites to the more than 330 already circling the Earth from prior launches.
A positive outcome for LE-03 would push Europe's contribution past 25% of the expanding Amazon Leo network. The mission follows Amazon's first heavy-lift outing on Ariane 64, which placed 32 additional satellites into low Earth orbit.
The upcoming LE-03 mission will see the heaviest payload ever launched by an Ariane rocket.
LE-03 relies on Ariane 6's enhanced P160C solid rocket boosters, produced by ArianeGroup. These units hold extra solid propellant and feature longer burn durations, boosting the vehicle's low Earth orbit capacity by more than two metric tons compared with the earlier P120C design.
The performance gain allows four more satellites per flight than the two previous Ariane 6 outings, each of which released 32 satellites, and establishes a new maximum payload size for both Amazon Leo and Arianespace.
Melissa Wuerl, director of Launch Systems for Amazon Leo, highlighted the joint efforts. "Increasing our payload capacity to 36 satellites per mission is the result of extensive engineering collaboration between our team and Arianespace. Every additional satellite we can safely deploy on a single launch accelerates the pace at which we scale our constellation and bring reliable connectivity to customers around the world. The upgraded P160C boosters give us the performance margin to do that confidently, and we're already looking ahead to further optimizations as we continue building out Amazon Leo," she said.
Manufacturing of the P160C boosters occurs entirely in Europe, bolstering the region's space sector and underscoring the importance of European rocketry within the worldwide market. Under an initial agreement covering 18 Ariane 6 flights, Amazon Leo stands as Arianespace's biggest individual client, reflecting a sustained partnership that benefits local communities and industries.
Every additional satellite we can safely deploy on a single launch accelerates the pace at which we scale our constellation and bring reliable connectivity to customers around the world.
According to Oxford Economics, Amazon Leo's investments across the EU are projected to add €2.8 billion to GDP. The activity is also expected to sustain an average of 3,270 jobs each year while generating more than €790 million for EU government revenues through related launch operations.
LE-03 continues the rapid pace set during Amazon Leo's initial year of operational deployments. From the first complete production launch in April 2025, the project has placed more than 330 satellites in orbit through 12 flights spanning two continents.
Amazon Leo pursues a diversified launch approach to expand its low Earth orbit network, having booked over 100 missions on five separate vehicles—Atlas V, Ariane 6, Falcon 9, Vulcan Centaur, and New Glenn.
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