Titan 401A Centaur | NROL-4
United States Air Force · Titan 401A Centaur · Space Launch Complex 41, Cape Canaveral SFS, FL, USA
United States Air Force's 985th launch · 13th this year · humanity's 4,189th orbital launch attempt
The launch vehicle successfully inserted its payload(s) into the target orbit(s).
Window: Nov 8, 02:05 – Nov 8, 02:05 UTC
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NROL-4 (Trumpet 3)
Trumpet signal intelligence satellites were launched by Titan-4(01)A Centaur-T into highly elliptic Molniya-type orbits. In their elliptical orbits they would move very slowly over the northern hemisphere for most of their orbital period, allowing interception of microwave line-of-sight communications beams. Since they would move slowly through the beams during their orbit, a constellation of such satellites was required to monitor Soviet communications throughout the day.
Government/Top Secret · Geostationary Orbit (Direct-GEO)
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