← Artemis II
LIVE OPS MODE
NASA•SLS + Orion
Artemis II — Wet Dress Rehearsal
We’re running this like a real mission: live countdown, live phases, and milestone callouts as the clock advances.
Countdown & Operations
Live ops HUD driven by the rehearsal clock
Time to Simulated T-0
+318:31:49
LIVE OPS HUD
ClockT+ 318:31:49
POST-T0 OPERATIONS
WX LOADING…
PREV: T-0 — Booster ignition, umbilical separation, liftoff • PREV: T-0 — Booster ignition, umbilical separation, liftoff • PREV: T-0 — Booster ignition, umbilical separation, liftoff
NASA LIVE
Active Now
No active operation at this time.
Just Completed
T-0 — Booster ignition, umbilical separation, liftoff
DONE
RS-25 engines start
DONE
GLS command for core stage engine start
DONE
Up Next
What this rehearsal validates
Run exactly like a launch day.
- Cryogenic loading under winter thermal constraints
- Ground systems performance over extended timelines
- Countdown discipline, holds, and recovery
- Team coordination across launch control positions
Watch Hub
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