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INMARSAT 2-F3 (21814)
COSPAR: 1991-084B | Alt Name: INMARSAT II F-3
Image
Additional Sources
Launch Details
Launch Date
December 16, 1991
Launch Site
FRGUI
Launch Pad
ELA2
Launch Vehicle
Ariane 44L
Orbital Elements
NORAD ID
21814
International Designator
1991-084B
Epoch
Fri, 03 Jul 2026 19:51:48 GMT
Apogee
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Perigee
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Inclination
14.15°
Right Ascension
13.34°
Eccentricity
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Argument of Perigee
80.79°
Period
1499.02 min
Mean Motion
0.96 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
INMARSAT 2-F3
Alternative Name
INMARSAT II F-3
Type
Payload
Status
Non-operational
Owner
INMAR
Country
INMARSAT
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 21814U 91084B 26184.82764325 -.00000155 00000-0 00000-0 0 9998
2 21814 14.1466 13.3426 0014663 80.7913 294.0397 0.96062556123332
Source: Celestrak
Summary
INMARSAT 2-F3 is a communication satellite launched on December 16, 1991, from ELA2 launch pad at Guiana Space Centre using an Ariane 44L launch vehicle. This satellite has a bus configuration of Eurostar-1000 and was manufactured by BAES. It measures 2 meters in length with a diameter of 1.5 meters and a span of 14.9 meters, featuring a box shape with two panels. The satellite's dry mass is 624 kilograms, and it had an initial launch mass of 1310 kilograms. INMARSAT 2-F3 is equipped with 4 (+2) L-band transponders and 1 (+1) C-band transponders for communication purposes. Its power system includes two deployable solar arrays and batteries. The satellite's expected lifetime was 10 years, and it serves the purpose of providing communication services under ownership by INMAR (International Mobile Satellite Organization).
Physical Characteristics
Length
2
Diameter
1.5
Span
14.9
Dry Mass
624
Launch Mass
1310
Shape
Box + 2 Pan
Radar Cross Section
7.9051
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
INMARSAT II F-3
Purpose
Communication
Mission
Communication
Manufacturer
BAES
Life Expectancy
10 years
Bus
Eurostar 1000
Configuration
Eurostar-1000
Motor
R-4D-11
Equipment
4 (+2) L-band transponders, 1 (+1) C-band 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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