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INMARSAT 3-F5 (25153)
COSPAR: 1998-006B | Alt Name: INMARSAT III F-5
Image
Additional Sources
Launch Details
Launch Date
February 4, 1998
Launch Site
FRGUI
Launch Pad
ELA2
Launch Vehicle
Ariane 44LP
Orbital Elements
NORAD ID
25153
International Designator
1998-006B
Epoch
Sat, 04 Jul 2026 03:56:37 GMT
Apogee
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Perigee
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Inclination
9.73°
Right Ascension
53.09°
Eccentricity
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Argument of Perigee
51.11°
Period
1436.13 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-F5
Alternative Name
INMARSAT III F-5
Type
Payload
Status
Operational
Owner
INMAR
Country
INMARSAT
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 25153U 98006B 26185.16432610 -.00000283 00000-0 00000-0 0 9998
2 25153 9.7284 53.0878 0004136 51.1136 183.1494 1.00269705104061
Source: Celestrak
Summary
INMARSAT 3-F5, also known as INMARSAT III F-5, is a communication satellite with NORAD catalog ID 25153 and OBJECT_ID 1998-006B. Launched on February 4, 1998, from ELA2 launch pad at the Guiana Space Centre using an Ariane 44LP vehicle, it has a configuration of AS-4000 with dimensions of 7.6 meters in length and 2.1 meters in diameter, and a span of 20.7 meters. Its dry mass is 827 kg, and the launch mass was 964 kg. Equipped with 22 (+11) L-band transponders and C-band uplink, it is powered by two deployable solar arrays and batteries. The satellite's manufacturer is LMEW and its purpose is communication. It has a lifetime of 13 years and a radar cross-section (RCS) of 14.5 square meters. INMARSAT 3-F5 belongs to the INMAR operator for communication purposes.
Physical Characteristics
Length
7.6
Diameter
2.1
Span
20.7
Dry Mass
827
Launch Mass
964
Shape
Box + 2 Pan
Radar Cross Section
14.5
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
INMARSAT III F-5
Purpose
Communication
Mission
Communication
Manufacturer
LMEW
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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