A short hold after T-6 minutes

Astronaut · Who you talk to: The launch director

At T-4 minutes a reading needs a second look. The count stops.

What this case adds

Resolve it within 3 minutes and resume the clock.
Keep track of the remaining launch window.

Critical fails

Answering "Go" with an open problem in your system.
Waiving a mandatory launch constraint after the terminal count has started: it cannot be waived.
Holding more than 3 minutes between T-6 and T-1:30 and pressing on instead of recycling to T-10.
Not knowing the abort or emergency procedure for your role.

The full checklist of this mold, step by step with its official sources: Launch: go / no-go poll and final count.

Sources

NASA, Artemis II Moon mission launch countdown https://www.nasa.gov/general/nasa-releases-artemis-ii-moon-mission-launch-countdown/

Making Synapses is not affiliated with, sponsored by or endorsed by NASA, the FAA or any space company. Artemis and the agencies are named and linked only to describe what this mold practices; real countdowns vary by mission.

Launch: go / no-go poll and final count