Mission log
A mission log was a log which recorded the events of a specific mission.

Gabrielle Burnham kept a mission log of her time travel experiences using the red angel suit, recorded on two mission log drones, saved to a data module within the suit. Lieutenant Paul Stamets and Ensign Sylvia Tilly were able to download the logs in 2257, for Michael Burnham to review. ()

In 2367, Data ordered the computer to scan all isolinear chips containing mission logs aboard the Onizuka, but found no discrepancies. ()

In 2368, in order to discover a connection between a group of Ullians and cases of unexplained comas, Geordi La Forge searched the Ullians' mission logs; he discovered that when two such cases had occurred in the Epsilon Nel system, Tarmin had been on the Ullian homeworld, so could not be responsible. ()

In 2369, an explosion aboard the  scrambled all logs aboard the ship, including mission logs, science logs and medical logs. ()

In 2375, the Silver Blood copy of the  planned to launch a probe containing the ship's records, but the probe was destroyed before its launch, so everything including personal logs and mission logs was gone. ()

Logs