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OPS 7350 (DSP 9) (12339)
COSPAR: 1981-025A | Alt Name: DSP F9
Image
Additional Sources
Launch Details
Launch Date
March 16, 1981
Launch Site
Launch Pad
LC40
Launch Vehicle
Titan IIIC
Orbital Elements
NORAD ID
12339
International Designator
1981-025A
Epoch
Fri, 03 Jul 2026 21:50:44 GMT
Apogee
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Perigee
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Inclination
8.06°
Right Ascension
304.92°
Eccentricity
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Argument of Perigee
290.31°
Period
1457.06 min
Mean Motion
0.99 rev/day
Latitude
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Longitude
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Altitude
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Velocity
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Polar Plot
3D Visualization
Basic Satellite Info
Name
OPS 7350 (DSP 9)
Alternative Name
DSP F9
Type
Payload
Status
Unknown
Owner
AFSD
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 12339U 81025A 26184.91023336 -.00000211 00000-0 00000-0 0 9997
2 12339 8.0619 304.9212 0018439 290.3083 143.3028 0.98829083 26001
Source: Celestrak
Summary
OPS 7350 (DSP 9), also known as DSP F9, is an early warning satellite operated by AFSD (Air Force Space Command) and manufactured by TRW. It was launched on March 16, 1981, from LC40 at AFETR using a Titan IIIC launch vehicle. The spacecraft has dimensions of 7 meters in length, with a diameter of 2.8 meters and a span of 7.7 meters. Its dry mass is 1050 kilograms, and it had an operational lifetime of approximately three years. Equipped with four deployable fixed solar arrays, the satellite's power system includes solar cells and batteries for operation. The configuration consists of a cylindrical body with four panels, and its primary mission was to provide early warning capabilities as part of the DSP (Defense Support Program) MOS/PIM bus.
Physical Characteristics
Length
7
Diameter
2.8
Span
7.7
Dry Mass
1050
Launch Mass
1180
Shape
Cyl + 4 Pan
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
DSP 10
Purpose
Early Warning
Mission
Early Warning
Manufacturer
TRW
Life Expectancy
3 years
Bus
DSP MOS/PIM
Configuration
Unknown
Motor
MRE-4
Equipment
?
Power System
4 deployable fixed solar arrays, solar cells, batteries
ADCS
Unknown
Transmitter Frequency
Unknown
Map
Next Pass
Azimuth Elevation Time (Local)
Start Azimuth
Max Elevation
Stop Azimuth
Time Until
Pass Duration
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