Atlas SLV-3A Agena D | Canyon 4
Launch Failure
L - -- : -- : -- : --
Instantaneous launch window.
Launch Window
Dec. 4, 1971, 10:33 p.m. - Dec. 4, 1971, 10:33 p.m.
Instantaneous launch window.
Dec. 4, 1971, 10:33 p.m. - Dec. 4, 1971, 10:33 p.m.
Canyon was the first series of NRO's near geostationary ELINT/SIGINT satellites launched under the designation AFP-827 or Program 7500 for NRO's Program A. They were focussed on communications intelligence (COMINT).
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