ESSA-8 was a weather satellite launched by NASA on December 15, 1968. A weather satellite is a type of Satellite that is primarily used to monitor the Weather and Climate of the Earth. The National Aeronautics and Space Administration ( NASA, ˈnæsə is an agency of the United States government, responsible for the nation's public space program It operated for 2,644 days until it was deactivated on March 12, 1976. ESSA-8 was launched from Vandenberg Air Force Base, CA. Vandenberg Air Force Base is a United States military installation with a Spaceport, in Santa Barbara County, California, United States.
ESSA-8 was an 18-sided polygon. It was 42 inches (1,100 mm) in diameter, 22 inches high, and weighed 290 pounds. It was made of aluminum alloy and stainless steel covered with 10,020 solar cells. WikipediaNaming In Metallurgy, stainless steel is defined as a Steel Alloy with a minimum of 11 The cells charged 63 nickel-cadmium batteries which served as a power source. The nickel-cadmium battery (commonly abbreviated NiCd and ˈnɑɪˌkæd "nye-cad" is a type of Rechargeable battery using Nickel oxide hydroxide The satellite could take 8 to 10 pictures every 24 hours. Each photo covered a 2,000-square-mile (5,200 km²) area at a 2 mile per pixel resolution.
ESSA-8's mission was to replace ESSA-6, and provide detailed cloud pattern photography to ground stations worldwide. Partners in the project included the ASA, ESSA, RCA, the US Weather Bureau, and the NMC. Essa may refer to Essa Ontario, an alternate stage name sometimes used by British rapper Yungun, Environmental Science RCA Corporation, founded as Radio Corporation of America, was an electronics company in existence from 1919 to 1986