As for the Little Dipper, it is circumpolar â always above the horizon â as far south as the tropic of Cancer (23.5 degrees north latitude). Stars in the Big Dipper via EarthSky Facebook friend Ken Christison. He captured this photo on September 9, 2013.
dwell time (usually uncountable, plural dwell times) (chiefly engineering) The period of time that a system or element of a system remains in a given state. The drone has a dwell time of about six hours when operating from an in-theater airfield. The part needs a total dwell time in the autoclave of 95 minutes. (military) The duty time soldiers have at their domestic home base between foreign deployments.
Currently, dwell time is measured for active service members as the median ratio of time deployed against time not deployed. Itâs measured at the start of a deployment, with the clock stopping when the service memberâs deployment ends. Generally speaking, officials strive for a median ratio dwell time of 1:2. This means that roughly half of the service members who deploy on a second tour or duty will spent two years or more at home for every year spent deployed. To recap, dwell time is the simply âtime offâ from deployment. More specifically, itâs the amount of time a service member spends home by the amount he spends deployed in a war zone or restricted tour. The Department of Defense now has strict rules requiring dwell time for all active service members.