Behind the scenes as prep continues for Leo Vulcan 1 (LV-01), the first of 38 Vulcan missions on contract with @ULAlaunch.
Teams have completed integration of the first LEO-optimized Centaur upper stage with Vulcan inside Amazon's dedicated Vertical Integration Facility (VIF-A), allowing ULA to begin the next phase of testing ahead of upcoming Leo Vulcan launches from SLC-41.
The first low Earth orbit (LEO)-optimized Centaur upper stage is now integrated atop the Vulcan rocket at ULA's @AmazonLeo Integration Facility!
Integrating the vehicle with the new LEO 85K Centaur upper stage allows the team to perform first time procedures, validate stage and ground support equipment interfaces with a planned Wet Dress Rehearsal to validate new technologies in advance of the first Vulcan Leo mission.
Learn more in our blog:
https://t.co/thnd65wusQ
Look back at Leo Atlas 7 (LA-07).
With 300+ satellites on orbit, we're continuing to grow our constellation ahead of an initial service rollout this year.
Leo will be back on the pad soon for LA-08, our final launch on Atlas V before transitioning to @ULALaunch's new heavy-lift Vulcan rocket.
Atlas V has delivered another 29 Leo satellites to low Earth orbit, adding coverage and capacity to the network and bringing Leo one step closer to connecting customers around the world.
Next up: Leo Europe 3 (LE-03) and Leo Atlas 8 (LA-08).
More updates here: https://t.co/nrA441PyOK
See our full photo album capturing the Amazon Leo 7 mission launched tonight by the United Launch Alliance Atlas V 551 rocket.
Photos: https://t.co/873Ausskgo
Launch info: https://t.co/8kjGxH9cYg
Successful Atlas staging is confirmed as the rocket passes off the coast of North Carolina Outer Banks at an altitude of 125 miles. The Centaur upper stage continues the ascent by accelerating the Amazon Leo payload to orbit. The vehicle now weighs less than seven percent of its liftoff mass. https://t.co/5bAKrECLty
United Launch Alliance successfully completed today's launch of the Amazon Leo 7 mission by the Atlas V rocket! All 29 advanced broadband satellites have been deployed into low Earth orbit, bringing the total number launched by ULA to 197. Atlas V has delivered the majority of Amazon satellites into space.
Next up, Leo 8 with another 29 satellites in July.
https://t.co/5bAKrECLty
The United Launch Alliance Atlas V rocket heads to space carrying 29 broadband satellites for @AmazonLeo, a network that will bring fast, reliable internet to customers and communities around the world. This is the Atlas V's seventh mission to help deplpy the Leo constellation.
Atlas V has exited Earth's atmosphere and crossed the Karman line, allowing the payload fairing to be jettisoned. The rocket is over 115 miles downrange from the launch pad and traveling more than 7,000 mph. https://t.co/8kjGxH9cYg
Solid rocket booster burnout and jettison is confirmed. The five GEM 63s consumed a half-million pounds (227,000 kg) of propellant to augment the initial liftoff power of the Atlas V. The rocket now weighs half of what it did at liftoff less than two minutes ago. https://t.co/5bAKrECLty
GO for launch! The final readiness poll by Launch Conductor Scott Barney is complete and Launch Director Bryan Titus has given final permission to launch our fifth Amazon Leo mission!
GO ATLAS! GO CENTAUR! GO AMAZON LEO!
Watch the launch livestream here: https://t.co/5bAKrECLty
NEW LAUNCH TIME. ULA Launch Director Bryan Titus has instructed the team to coordinate a new launch time of 7:53 p.m. EDT (2353 UTC). Live launch blog and livestream: https://t.co/8kjGxH9cYg
Weather conditions have gone NO GO due to anvil clouds moving too close to the launch pad.
We will be extending this hold an additional few minutes to await improvement.
https://t.co/8kjGxH9cYg
The launch weather officer confirms that all conditions remain observed GO for liftoff of the Atlas V rocket at 7:35 p.m. EDT (2335 UTC).
Launch livestream is about to begin. Tune in! https://t.co/8kjGxH9cYg