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NROL-4 (Trumpet 3)
Titan 401A CentaurUnited States Air ForceSpace Launch Complex 41
Saturday, November 8, 1997 · 02:05 AM UTCAdd to Calendar
This mission is complete.
Mission Brief
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.
PayloadNROL-4 (Trumpet 3)
OrbitGeostationary Orbit
CustomerUnited States Air Force
Stages0
PadSpace Launch Complex 41, Cape Canaveral SFS, FL, USA
Mission Timeline
14 / 14100%Site lock
Launch Site
Space Launch Complex 41, Cape Canaveral SFS, FL, USA
28.583°N, 80.583°W
Schedule History
No delays or schedule changes recorded.
