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
History of The Weather Channel history, there was no slogan or unifying theme. "WeatherScope" was replaced with "Weather Center", a program which essentially comprised The Weather Channel's entire 24-hour daily programming schedule at the time in the form of three separate programs ("Weather Center AM", a morning program focusing primarily on business, commuter and leisure travel weather; "Weather Center PM", an evening program with a focus on forecasts for the day ahead; and an afternoon broadcast simply using the "Weather Center" title, which focused on ongoing weather conditions). April 1998 saw updates to "The Front" image campaign; one of the new advertisements specifically mentioned the