Much of the early research into effective OTH systems was carried out under the direction of Dr. William J. Thaler at the Naval Research Laboratory. The work was dubbed "Project Teepee" (for "Thaler's Project"). Their first experimental system, MUSIC (Multiple Storage, Integration, and Correlation), became operational in 1955 and was able to detect rocket launches 600 miles (970 km) away at Cape Canaveral, and nuclear explosions in Nevada at 1,700 miles (2,700 km).[4] A greatly improved system, a testbed for an operational radar, was built in 1961 as MADRE (Magnetic-Drum Radar Equipment) at Chesapeake Bay.