Space Brief 28 Nov 2024
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USA 75 (DSP 16) (21805)
COSPAR: 1991-080B | Alt Name: DSP F16
Image
Additional Sources
Launch Details
Launch Date
November 24, 1991
Launch Site
Launch Pad
LC39A
Launch Vehicle
Space Shuttle
Orbital Elements
NORAD ID
21805
International Designator
1991-080B
Epoch
Fri, 03 Jul 2026 08:31:57 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
13.99°
Right Ascension
345.39°
Eccentricity
Calculating...
Argument of Perigee
103.20°
Period
1451.80 min
Mean Motion
0.99 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
USA 75 (DSP 16)
Alternative Name
DSP F16
Type
Payload
Status
Partially operational
Owner
AFSSD2
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 21805U 91080B 26184.35552858 -.00000215 00000-0 00000-0 0 9995
2 21805 13.9944 345.3887 0004583 103.2031 264.6332 0.99187520 25875
Source: Celestrak
Summary
USA 75 (DSP 16), also known as DSP F16, is an Early Warning satellite manufactured by TRW and operated by AFSSD2 for the United States military. Launched on November 24, 1991, from Launch Pad LC39A at Kennedy Space Center using a Space Shuttle launch vehicle, it measures approximately 10 meters in length with a diameter of 3.3 meters and a span of 11.5 meters. The satellite has a dry mass of 2,200 kilograms and weighed 2,360 kilograms at launch. It is equipped with four deployable fixed solar arrays to power the spacecraft, along with batteries for energy storage. The mission purpose is Early Warning, utilizing an MRE-4 motor and a configuration described as Cyl + 4 Pan (Cylinder with Four Panels).
Physical Characteristics
Length
10
Diameter
3.3
Span
11.5
Dry Mass
2200
Launch Mass
2360
Shape
Cyl + 4 Pan
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
DSP 16
Purpose
Early Warning
Mission
Early Warning
Manufacturer
TRW
Life Expectancy
Unknown
Bus
DSP B14
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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