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OSCAR 31 (19420)
COSPAR: 1988-074B | Alt Name: NNS 30310-60
Image
Additional Sources
Launch Details
Launch Date
August 25, 1988
Launch Site
AFWTR
Launch Pad
SLC5
Launch Vehicle
Scout G-1
Orbital Elements
NORAD ID
19420
International Designator
1988-074B
Epoch
Sat, 04 Jul 2026 00:31:32 GMT
Apogee
Calculating...
Perigee
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Inclination
90.04°
Right Ascension
21.41°
Eccentricity
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Argument of Perigee
21.77°
Period
107.25 min
Mean Motion
13.43 rev/day
Latitude
Calculating...
Longitude
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Altitude
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Velocity
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Polar Plot
3D Visualization
Basic Satellite Info
Name
OSCAR 31
Alternative Name
NNS 30310-60
Type
Payload
Status
Unknown
Owner
NAVAIR
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 19420U 88074B 26185.02190374 .00000082 00000-0 12580-3 0 9990
2 19420 90.0414 21.4107 0095085 21.7744 130.1433 13.42614491853784
Source: Celestrak
Summary
The OSCAR 31 satellite, also known as NNS 30310-60, was launched on August 25, 1988, from AFWTR SLC5 using a Scout G-1 launch vehicle. It is part of the Transit-Bus series and operates for navigation purposes under the ownership of NAVAIR. The satellite has a configuration of Gravity Stabilized with dimensions of 0.3 meters in length and 0.5 meters in diameter, featuring a span of 30 meters. Its dry mass is 64 kilograms, which is also its launch mass. OSCAR 31 was manufactured by GEEW and powered by four deployable fixed solar arrays along with batteries. The satellite's shape consists of an octagonal cylinder with four panels and antennas, and it has a radar cross-section (RCS) value of 1.3326 square meters.
Physical Characteristics
Length
0.3
Diameter
0.5
Span
30
Dry Mass
64
Launch Mass
64
Shape
Oct Cyl + 4 Pan + Ant
Radar Cross Section
1.3326
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
NNS O-31
Purpose
Navigation
Mission
Navigation
Manufacturer
GEEW
Life Expectancy
Unknown
Bus
Transit 5
Configuration
Transit-Bus, Gravity Stabilized
Motor
?
Equipment
?
Power System
4 deployable fixed 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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