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USA 139 (25336)
COSPAR: 1998-029A | Alt Name: USA 139
DECAYED
Image
Additional Sources
Launch Details
Launch Date
May 9, 1998
Launch Site
Launch Pad
LC40
Launch Vehicle
Titan 401B/Centaur
Orbital Elements
NORAD ID
25336
International Designator
1998-029A
Decay Date
Unknown
Basic Satellite Info
Name
USA 139
Alternative Name
USA 139
Type
Payload
Status
Operational
Owner
NROC/NSA
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Summary
The USA 139 satellite, also known as Adv ORION, was launched on May 9, 1998, from Air Force Eastern Test Range (AFETR) Launch Complex 40 using a Titan 401B/Centaur launch vehicle. It has dimensions of 6 meters in length and 4 meters in diameter with an overall span of 30 meters. The satellite's dry mass is 4,600 kg and it was launched with a total mass of 5,000 kg. Equipped with large dish antennas and utilizing 3-axis stabilization for orientation control, the spacecraft is powered by solar arrays and batteries. Its primary mission involves SIGINT (Signals Intelligence), ELINT (Electronic Intelligence), and COMINT (Communications Intelligence) activities on behalf of its owners NROC/NSA. The satellite was built in the United States but the specific manufacturer is unknown ("UNKUS"). It reached a stable orbit by May 13, 1998.
Physical Characteristics
Length
6
Diameter
4
Span
30
Dry Mass
4600
Launch Mass
5000
Shape
Box + 2 Pan
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
ORION 4
Purpose
SIGINT, ELINT, COMINT
Mission
SIGINT, ELINT, COMINT
Manufacturer
UNKUS
Life Expectancy
?
Bus
Adv ORION
Configuration
Large Dish Antenna, 3-Axis-Stabilization
Motor
?
Equipment
?
Power System
Solar arrays, batteries
ADCS
Unknown
Transmitter Frequency
Unknown
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