We are engaged on a mapping mission.

Spock said, "Sir, a polar orbit suggests a detailed mapping mission."

"Commander Riker, what is the current status of our mapping mission?"

"Maybe I'll sign up for one of the mapping missions to other gas giants," BeBob muttered.

This mission was a complete success, having finished its primary mapping mission in early 2001.

The probe finished a one-year mapping mission, and is now on a one-year extended mission expected to end in 2013.

On June 16, 1943 a request went out for a special mission: an unescorted, single-ship mapping mission over hostile territory.

After about 100 days of the mapping mission, the boom was deployed and remained in this position for the duration of the mission.

Something was occupying a good deal of the captain's attention, and it had nothing to do with their current mapping mission or its recent odd permutation.

"Data, how is Captain Solok doing with the mapping mission?"