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USA 58 (20562)
COSPAR: 1990-031C | Alt Name: SCE
Image
Additional Sources
Launch Details
Launch Date
April 11, 1990
Launch Site
AFWTR
Launch Pad
SLC3W
Launch Vehicle
Atlas E Altair
Orbital Elements
NORAD ID
20562
International Designator
1990-031C
Epoch
Fri, 03 Jul 2026 15:06:23 GMT
Apogee
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Perigee
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Inclination
89.86°
Right Ascension
263.01°
Eccentricity
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Argument of Perigee
244.41°
Period
97.53 min
Mean Motion
14.76 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
USA 58
Alternative Name
SCE
Type
Payload
Status
Unknown
Owner
AFSSD2/USN
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 20562U 90031C 26184.62943491 .00000812 00000-0 11111-3 0 9996
2 20562 89.8592 263.0082 0060250 244.4120 115.0868 14.76462925116079
Source: Celestrak
Summary
USA 58, also known as SCE (Satellite Celestial Environment), is a technology satellite launched on April 11, 1990, from AFWTR using the Atlas E Altair launch vehicle from SLC3W. The spacecraft has a cylindrical shape with antennas and measures 0.4 meters in length, 0.6 meters in diameter, and spans 6.1 meters. It was manufactured by DSI (Defense Systems Inc.) and had a dry mass of 55 kg at launch. Equipped with solar cells and batteries for power supply, the satellite's purpose is technology demonstration, utilizing the MAESTRO Bus configuration. The satellite was operated by AFSSD2/USN (Air Force Space Test and Evaluation Directorate/United States Navy). Its designed lifetime was one year with a goal of three years.
Physical Characteristics
Length
0.4
Diameter
0.6
Span
6.1
Dry Mass
55
Launch Mass
55
Shape
Cyl + Ant
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
SCE
Purpose
Technology
Mission
Technology
Manufacturer
DSI
Life Expectancy
1 year (design); 3 years (goal)
Bus
Ministar
Configuration
MAESTRO Bus
Motor
None
Equipment
see above
Power System
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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