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NAVSTAR 31 (USA 90) (22581)
COSPAR: 1993-017A | Alt Name: GPS IIA-10
Image
Additional Sources
Launch Details
Launch Date
March 30, 1993
Launch Site
Launch Pad
LC17A
Launch Vehicle
Delta 7925
Orbital Elements
NORAD ID
22581
International Designator
1993-017A
Epoch
Fri, 03 Jul 2026 19:33:14 GMT
Apogee
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Perigee
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Inclination
54.12°
Right Ascension
297.54°
Eccentricity
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Argument of Perigee
115.20°
Period
762.12 min
Mean Motion
1.89 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
NAVSTAR 31 (USA 90)
Alternative Name
GPS IIA-10
Type
Payload
Status
Non-operational
Owner
AFSMC
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 22581U 93017A 26184.81474681 -.00000054 00000-0 00000-0 0 9998
2 22581 54.1215 297.5421 0003115 115.2037 235.8292 1.88946912 89496
Source: Celestrak
Summary
NAVSTAR 31 (USA 90), also known as GPS IIA-10, is a navigation satellite launched by the United States on March 30, 1993, from Cape Canaveral Air Force Station using a Delta 7925 launch vehicle. The satellite has dimensions of 2.4 meters in length and 1.8 meters in diameter with a span of 5.3 meters and operates within the GPS constellation. It features a 3-axis stabilized configuration and has a dry mass of 860 kilograms, which is identical to its launch mass. NAVSTAR 31 is powered by two deployable solar arrays along with batteries and was manufactured by RWISB for AFSMC (Air Force Space Command). The satellite's mission is navigation, and it uses Star 37XFP as its motor. It has a box shape with two panels and an RCS of 0.976. The operational lifetime of NAVSTAR 31 is approximately 7.5 years.
Physical Characteristics
Length
2.4
Diameter
1.8
Span
5.3
Dry Mass
860
Launch Mass
860
Shape
Box + 2 Pan
Radar Cross Section
0.976
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
GPS SVN 31
Purpose
Navigation
Mission
Navigation
Manufacturer
RWISB
Life Expectancy
7.5 years
Bus
GPS
Configuration
3-Axis stabilized
Motor
Star 37XFP
Equipment
?
Power System
2 deployable solar arrays, 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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