Live coverage
Stream links and embedded coverage.
Launch Detail
Pulling launch timing, vehicle context, weather signals, and mission evidence.
Launch detail
United Launch Alliance • Atlas V 551 • Space Launch Complex 41 (FL)

United Launch Alliance • Atlas V 551 • SLC-41
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. 29 satellites are carried on this launch.

Live targets are highlighted across the sequence.
Enhanced forecast insights (select launches).
Premium adds the higher-signal weather shell for select Eastern Range launches, including the extra launch criteria and fast-read risk rows.
Stream links and embedded coverage.
Open the launch pad in Google Maps satellite mode using the pad coordinates.
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. 29 satellites are carried on this launch.
Atlas V is an expendable launch system in the Atlas rocket family. It was formerly operated by Lockheed Martin and is now operated by United Launch Alliance (ULA), a joint venture with Boeing. Each Atlas V rocket uses a Russian-built RD-180 engine burning kerosene and liquid oxygen to power its first stage and an American-built RL10 engine burning liquid hydrogen and liquid oxygen to power its Centaur upper stage. The RD-180 engines are provided by RD Amross, while Aerojet Rocketdyne provides both the RL10 engines and the strap-on boosters used in some configurations. The standard payload fairing sizes are 4 or 5 meters in diameter and of various lengths. Fairings sizes as large as 7.2 m in diameter and up to 32.3 m in length have been considered. The rocket is assembled in Decatur, Alabama and Harlingen, Texas.
United Launch Alliance (ULA) is a joint venture of Lockheed Martin Space Systems and Boeing Defense, Space & Security. ULA was formed in December 2006 by combining the teams at these companies which provide spacecraft launch services to the government of the United States. ULA launches from both coasts of the US. They launch their Atlas V vehicle from LC-41 in Cape Canaveral and LC-3E at Vandeberg. Their Delta IV launches from LC-37 at Cape Canaveral and LC-6 at Vandenberg.
5defb63fad2b0e1ebf6a03a766b6763e8616a7e8e0e6fd29e554a16b1487c0cePremium keeps the launch-by-launch change log visible so you can review slips, window edits, and status changes without waiting for an error-driven upgrade prompt.
Linked via Spaceflight News API (SNAPI).
Article“As space becomes increasingly strategic, access is no longer a luxury."
ArticleAn Atlas 5 launched the latest set of satellites for Amazon’s broadband constellation April 4 as the company seeks to accelerate deployment of its spacecraft...
ArticleLiftoff from pad 41 at Cape Canaveral Space Force Station is scheduled for Saturday at 1:45 a.m. EDT (0545 UTC), weather permitting.
ArticleNine launches are scheduled this week, with rockets expected to liftoff from Florida, California, Russia,… The post Launch Preview: SLS, Falcon 9, Atlas V,...
ArticleThe United States, Russia, China, New Zealand, and Norway are all set to host launches… The post Launch Preview: Russia to debut Soyuz-5; Falcon 9 and Atlas...
ArticleAmazon vowed to double the annual launch rate for its low Earth orbit broadband constellation to more than 20 missions, hinging largely on rockets yet to pro...
Provider, rocket, pad, and booster history tied to this launch.
Temporary flight restrictions and NOTAM matches tied to this launch.
Advisory data is informational. Confirm operational constraints with official FAA publications.
0-100 score for how likely the jellyfish effect is to be visible from your location.
A visible jellyfish plume is unlikely from this location.
0 = very unlikely to see it. 100 = best setup.
No visible jellyfish plume is currently expected from this location.