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 The Weather Star XL received a graphical refresh for the first time in September 2001, which included the introduction of different colors on text boxes, a new cloud background, improved regional forecast and radar maps, and new title bars and fonts that, as with the previous version, matched the on-air graphics that were used by TWC at the time. In April 2002, the TWC-compiled local forecasts introduced the previous year on Weatherscan replaced the forecasts sourced by the National Weather Service on the WeatherStar systems. As NWS bulletins/warnings were included in the old forecasts, a Weather Bulletins page was introduced