Launch Vehicles & Space Transportation  

Atlas V LA-05 to lift program's heaviest-ever payload at 1:45 a.m. ET on April 4

Liftoff of United Launch Alliance's Atlas V LA‑05 is scheduled for 1:45 a.m. ET on Saturday, April 4. The flight will carry the heaviest payload ever launched on an Atlas V, demonstrating the vehicle's performance near its upper mission capability and adding to a busy launch week.

Discovered 2026-04-03T09:10:45.297317-07:00 | 2026-04-03T09:10:45.297317-07:00

Briefing

What Hype is tracking

  • The flight carries the heaviest payload ever flown on an Atlas V, a concrete demonstration of the vehicle's upper performance envelope.
  • Scheduled for 1:45 a.m. ET April 4, the launch increases near-term traffic and range coordination during a week of high orbital activity.
  • The mission occurs while ULA targets an elevated 2026 cadence and readies Vulcan operations, providing near-term operational context for manifest planning and resource allocation.

Reported By

Spaceflight Now spacecoastdaily.com Space.com
Sources Tracked
3
First Seen
2026-04-03T09:10:45.297317-07:00
Latest Update
2026-04-03T15:18:08.201148-07:00
Coverage
Space

Sources

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