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USA 193

Also called NROL 28


Designation 29651 / 06057A
Launch date 14 Dec 2006
Country of origin United States
Mission Military
Perigee/Apogee 354/376 km
Inclination 58.5°
Launch vehicle Delta 2 #322

The spacecraft carries a sophisticated and secret imaging sensor but the satellite's central computer failed shortly after launch. Mass estimated at 2250 kg

Carried an hydrazine tank that could have survived re-entry (a similar one did on Columbia) with 450 kg of remaining (frozen) fuel. A US Navy Aegis warship fired a single modified tactical Standard Missile-3 (SM-3) hitting the satellite three minutes after in 242 x 257 km x 58.5 deg orbit over the Pacific Ocean.

End of life

Out of service 14 Dec 2006
Cause Could not be contacted, total failure.
Decay Feb 2008, pulverised in 3000 small pieces by an Aegis SM3 missile

External resources

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