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ORBCOMM FM25 (25479)
COSPAR: 1998-053E | Alt Name: Orbcomm C5
Image
Additional Sources
Launch Details
Launch Date
September 23, 1998
Launch Site
ERAS
Launch Pad
RW04/22
Launch Vehicle
Pegasus XL/HAPS
Orbital Elements
NORAD ID
25479
International Designator
1998-053E
Epoch
Thu, 02 Jul 2026 11:34:06 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
45.01°
Right Ascension
262.67°
Eccentricity
Calculating...
Argument of Perigee
320.78°
Period
100.06 min
Mean Motion
14.39 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
ORBCOMM FM25
Alternative Name
Orbcomm C5
Type
Payload
Status
Non-operational
Owner
ORBC
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 25479U 98053E 26183.48202266 .00000762 00000-0 28979-3 0 9995
2 25479 45.0066 262.6703 0003693 320.7815 39.2766 14.39111951452507
Source: Celestrak
Summary
ORBCOMM FM25, also known as Orbcomm C5, is a MicroStar configuration satellite owned by ORBC and manufactured by OSCG. It was launched on September 23, 1998, from ERAS using the Pegasus XL/HAPS launch vehicle. The satellite measures 0.2 meters in length with a diameter of 1 meter and has a span of 4.3 meters due to its two deployable solar arrays. Its dry mass is 42 kilograms, matching its launch mass. Equipped for Communication M2M/IoT purposes, the Orbcomm payload on ORBCOMM FM25 uses batteries alongside the solar arrays for power generation. The satellite's shape consists of a cylinder with two panels and an antenna, and it has an RCS of 0.67. Its mission was to last approximately four years following its launch date.
Physical Characteristics
Length
0.2
Diameter
1
Span
4.3
Dry Mass
42
Launch Mass
42
Shape
Cyl + 2 Pan + Ant
Radar Cross Section
0.67
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Orbcomm FM25
Purpose
Communication M2M/IoT
Mission
Communication M2M/IoT
Manufacturer
OSCG
Life Expectancy
4 years
Bus
Microstar
Configuration
MicroStar
Motor
?
Equipment
Orbcomm payload
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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