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| | TIROS (Television Infrared Observation System) |
 | | It began with 10 experimental spacecraft, TIROS 1 to 10, launched between 1960 and 1965, which represented the first generation of American weather satellites. |
 | | This gave way to the ITOS (Improved TIROS), beginning with TIROS-M and continuing with five satellites of the same design with the NOAA (National Oceanic and Atmospheric Administration) designation-NOAA having by this time absorbed ESSA and taken over management of the TIROS program. |
 | | TIROS 1-10, ESSA 1-2, and ESSA 9 were launched from Cape Canaveral, while ESSA 3-8, TIROS-M, TIROS-N, and NOAA 1-16 were launched from Vandenberg. |
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