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INMARSAT 3-F3 (24674)
COSPAR: 1996-070A | Alt Name: INMARSAT III F-3
Image
Additional Sources
Launch Details
Launch Date
December 18, 1996
Launch Site
Launch Pad
LC36A
Launch Vehicle
Atlas IIA
Orbital Elements
NORAD ID
24674
International Designator
1996-070A
Epoch
Fri, 03 Jul 2026 19:11:20 GMT
Apogee
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Perigee
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Inclination
10.35°
Right Ascension
49.49°
Eccentricity
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Argument of Perigee
59.13°
Period
1440.14 min
Mean Motion
1.00 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 3-F3
Alternative Name
INMARSAT III F-3
Type
Payload
Status
Backup
Owner
INMAR
Country
INMARSAT
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 24674U 96070A 26184.79954300 .00000108 00000-0 00000-0 0 9992
2 24674 10.3533 49.4928 0003337 59.1293 126.4527 0.99990411108076
Source: Celestrak
Summary
INMARSAT 3-F3, also known as INMARSAT III F-3, is a communication satellite operated by INMAR and launched on December 18, 1996, from the Atlas East Test Range (AFETR), specifically Launch Complex 36A (LC36A). It was carried into orbit by an Atlas IIA launch vehicle. The satellite has dimensions of 7.6 meters in length, 2.1 meters in diameter, and a span of 20.7 meters, with a dry mass of 792 kilograms and a launch mass of 1035 kilograms. It is equipped with 22 (+11) L-band transponders (with 22W power amplifiers) and a C-band uplink for communication purposes. The satellite's primary power source consists of two deployable solar arrays and batteries, and it features a box shape with two panels. Its manufacturer is LMTEW, and the propulsion system uses a Star 37FM motor. INMARSAT 3-F3 was intended to have an operational lifetime of approximately 13 years.
Physical Characteristics
Length
7.6
Diameter
2.1
Span
20.7
Dry Mass
792
Launch Mass
1035
Shape
Box + 2 Pan
Radar Cross Section
28.1837
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
INMARSAT III F-3
Purpose
Communication
Mission
Communication
Manufacturer
LMTEW
Life Expectancy
13 years
Bus
AS4000
Configuration
AS-4000
Motor
Star 37FM
Equipment
22 (+11) L-band transponders (22W Power amplifiers), C-band uplink
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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