Payload
USA 139
OperationalPayloadGEO
USA 139 is a National Reconnaissance Office (NRO) payload satellite, launched on May 9, 1998 into GEO.
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Launch
- Launch date
- May 9, 1998 at 01:38 AM UTC
- Launch site
- Cape Canaveral SFS, USA
- Launched by
- Titan IVB/Centaur →
- Operator
- United States Air Force
- Mission
- NROL-6 (Orion 4)
- Launch record
- View full launch →
Orbit
- Orbit regime
- GEO
- Apoapsis
- 35,998 km
- Periapsis
- 35,576 km
- Inclination
- 7.33°
- Orbital period
- 1436.13 min
Spacecraft
- Operator
- National Reconnaissance Office (NRO)
- Manufacturer
- TRW Space and Electronics
- Users
- Military
- Launch mass
- 4,499.5 kg
- Detailed purpose
- Electronic Intelligence
Identity
- COSPAR (Int'l)
- 1998-029A
- NORAD catalog №
- 25336
- Object type
- Payload
- Owner / operator
United States- Status
- Operational