L minus' indicates how far away we are from actual liftoff& doesn't include built-in holds.- NASALSP a 2010 Mission News post on the NASA website for the EPOXI Mission, Jet Propulsion Laboratory media relations specialist DC Agle explained that the t in t-minus stands for time: “When a rocket is getting ready for liftoff, it will be lifting off at a specific time. Keep in mind that a launch isn’t just a ten-second chant, but rather the multiple hours of preparation that take place before the crowd yells “Liftoff!”'L Minus' time is different from 'T Minus' time.' T-time, on the other hand, can be stopped and started.During a launch, t-time will be used for specific tasks that need to be completed before the rest of the launch can proceed, whereas l-time is used as a countdown to the end of the overall mission. L-time consists of actual time that has, meaning that it is a continuous countdown that cannot be modified. Make a MemeWhen conducting space launches, the United States National Aeronautics and Space Administration (NASA) uses what are called l-time and t-time.
For example, if you made a checklist for producing the monthly newsletter at work, the event date would be the publication date. The date is set relative to the event that is at the end, and you schedule the tasks based on the lead time for the event. A T-minus list is a checklist of items with a date attached. I guess you could use d-day minus # but i've always heard it used when talking about the days after d-day. When referring to d-day, its d-day plus one.
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