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UFO 11 (USA 174) (28117)
COSPAR: 2003-057A | Alt Name: UHF F/O F11
Image
Additional Sources
Launch Details
Launch Date
December 18, 2003
Launch Site
Launch Pad
SLC36B
Launch Vehicle
Atlas 3B
Orbital Elements
NORAD ID
28117
International Designator
2003-057A
Epoch
Sat, 04 Jul 2026 02:19:38 GMT
Apogee
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Perigee
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Inclination
8.94°
Right Ascension
33.74°
Eccentricity
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Argument of Perigee
84.98°
Period
1436.08 min
Mean Motion
1.00 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
UFO 11 (USA 174)
Alternative Name
UHF F/O F11
Type
Payload
Status
Operational
Owner
PMW146
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 28117U 03057A 26185.09697672 -.00000097 00000-0 00000-0 0 9999
2 28117 8.9400 33.7406 0002906 84.9794 273.9248 1.00272695 82617
Source: Celestrak
Summary
UFO 11 (USA 174) is a communication satellite launched by PMW146 on December 18, 2003, from SLC36B at AFETR using an Atlas 3B launch vehicle. The spacecraft measures 6.7 meters in length with a diameter of 3.4 meters and a span of 26.2 meters. It has a dry mass of 1350 kilograms and was manufactured by BOES on the HS-601 bus, configured as BSS-601. The satellite is equipped with UHF and EHF transponders for its mission. Its power system consists of two deployable solar arrays and batteries. The operational lifetime of UFO 11 is projected to be 15 years.
Physical Characteristics
Length
6.7
Diameter
3.4
Span
26.2
Dry Mass
1350
Launch Mass
3205
Shape
Box + 2 Pan
Radar Cross Section
10
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
UFO F11
Purpose
Communication
Mission
Communication
Manufacturer
BOES
Life Expectancy
15 years
Bus
HS-601
Configuration
BSS-601
Motor
R-4D-11-300
Equipment
UHF, EHF transponders
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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