USNS Capable (T-AGOS-16) was a Stalwart-class modified tactical auxiliary general ocean surveillance ship of the United States Navy in service from 1989 to 2004.

In 2008, she was commissioned into service in the National Oceanic and Atmospheric Administration as the oceanographic research ship NOAAS Okeanos Explorer (R 337).

Designed to collect underwater acoustical data in support of anti-submarine warfare operations, Capable spent the final years of the Cold War towing Surveillance Towed Array Sensor System (SURTASS) sonar equipment to hunt for Soviet Navy submarines.

After the Cold War ended with the collapse of the Soviet Union in late December 1991, requirements for such surveillance declined.

It struck her from the Naval Vessel Register and transferred her to the National Oceanic and Atmospheric Administration (NOAA) the same day.