Weather satellite of rotation and its elliptical orbit kept it from collecting a notable amount of useful data. The Explorer VI and VII satellites also contained weather-related experiments. The first weather satellite to be considered a success was TIROS-1, launched by NASA on April 1, 1960. TIROS operated for 78 days and proved to be much more successful than Vanguard 2. TIROS paved the way for the Nimbus program, whose technology and findings are the heritage of most of the Earth-observing satellites NASA and NOAA have launched since then. Beginning with the Nimbus 3 satellite in 1969, temperature information through the tropospheric
What Satellite and Digital TV internet-delivered services such as Virgin Media, BT Vision, TalkTalk TV, the BBC iPlayer and 4oD, and digital radio. The magazine incorporated listings for many years, and did so since early editions. It also included features on upcoming TV shows, film reviews and interviews. In April 2002, What Satellite and Digital TV was the first magazine to discover secret military broadcasts of NATO spy planes over Bosnia being broadcast and received using a one metre satellite dish The United States encrypted the transmissions after the security breach was discovered. The magazine was merged with sister title "Satellite TV Monthly" (formerly known