launch window

noun

1. a precise time period during which a spacecraft can be launched from a particular site in order to achieve a desired mission, as a rendezvous with another spacecraft.

launch window

noun

1. the limited period during which a spacecraft can be launched on a particular mission

Word History and Origins

Origin of launch window¹

First recorded in 1960–65

Example Sentences

Several countries sent missions to the red planet in June last year, taking advantage of a launch window.

From Singularity Hub 

The broadcast above should begin around 15 minutes prior to the opening of the launch window, so long as everything is tracking on time.

From TechCrunch

The new launch window is December 19, between the hours of 10 AM to 2 PM PST.

From TechCrunch