JS Hibiki (AOS-5201) is a Hibiki-class ocean surveillance ship of Japan Maritime Self-Defense Force (JMSDF).

Hibiki-class vessels have a beam of 30 metres (98 ft 5 in), a top speed of 11 knots (20 km/h; 13 mph), and a standard range of 3,800 nautical miles (7,000 km; 4,400 mi).

[2] Each vessel has a crew of 40, including five American civilian technicians, and a flight deck for helicopters to operate off of.

[5][4] Data from the sensors is relayed through the Defense Satellite Communications System and processed and shared with the United States.

[citation needed] After deployment, from 9 March 1991, she was circulated to Oakland, California, USA for proficiency training after service, and, after learning the SURTASS system, she was equipped with a sonar array in Pearl Harbor, Hawaii.