The NOAA Ship Okeanos Explorer conducted overnight mapping operations to complement the ship's previous mapping efforts in 2011. At approximately 0915, ship and mission crew launched Little Herc and Seirios for the fourteenth dive of the 2012 field season. This was the fourth remotely operated vehicle (ROV) dive in the vicinity of Deepwater Horizon. The ROV and camera platform were safely recovered by 1700. Mapping operations continued following recovery.