Name of Satellite, Alternate Names | Keyhole 4 (Advanced KH-11, Advanced Keyhole, Improved Crystal, EIS-2, 8X Enhanced Imaging System, NROL 14, USA 161) |
Country of Operator/Owner | USA |
Operator/Owner | National Reconnaissance Office (NRO) |
Users | Military |
Purpose | Reconnaissance |
Class of Orbit | LEO |
Type of Orbit | Sun-Synchronous |
Longitude of GEO (degrees) | 0 |
Perigee (km) | 202 |
Apogee (km) | 1041 |
Eccentricity | 0.0600014303082314 |
Inclination (degrees) | 97.8 |
Period (minutes) | 97.13 |
Launch Mass (kg.) | 18000 |
Dry Mass (kg.) | 10000 |
Power (watts) | |
Date of Launch | 05-10-2001 |
Expected Lifetime | 5+ yrs. |
Contractor | Lockheed Martin |
Country of Contractor | USA |
Launch Site | Vandenberg AFB |
Launch Vehicle | Titan IV |
COSPAR Number | 2001-044A |
NORAD Number | 26934 |
Comments | $1 billion satellite; high resolution surveillance; can resolve square or circular objects as small as 10 cm but linear structures of 5-8 cm can also be detected. Reported to have reduced capacity due to electrical problems. |