Built-in hold
id:
built-in-hold-221-2031441
title:
Built-in hold
text:
A built-in hold is a period in a launch countdown where the countdown clock is stopped. The hold serves as a milestone in the countdown and may be of a fixed or variable duration. Criteria for exiting that hold and restarting the countdown may be based on a fixed time, the completion of a checklist of work items, or a go/no-go decision from mission management. For example, space shuttle launch countdowns included seven holds at T-27 hours, T-19 hours, T-11 hours, T-6 hours, T-3 hours, T-20 minut
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Built-in_hold
date created:
2011-06-29T14:48:14Z
date modified:
2024-09-13T18:23:10Z
main entity:
{"identifier":"Q4986664","url":"https://www.wikidata.org/entity/Q4986664"}
image:
fields total:
13
integrity:
14