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ORBCOMM FM24 (25478)
COSPAR: 1998-053D | Alt Name: Orbcomm C4
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
25478
International Designator
1998-053D
Epoch
Sat, 04 Jul 2026 04:01:14 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
45.01°
Right Ascension
256.32°
Eccentricity
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Argument of Perigee
286.13°
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 FM24
Alternative Name
Orbcomm C4
Type
Payload
Status
Non-operational
Owner
ORBC
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 25478U 98053D 26185.16752937 .00000819 00000-0 30781-3 0 9993
2 25478 45.0072 256.3202 0002693 286.1324 73.9229 14.39167619452451
Source: Celestrak
Summary
The ORBCOMM FM24 satellite, also known as Orbcomm C4, was launched on September 23, 1998, from ERAS launch site using a Pegasus XL/HAPS launch vehicle. It is part of the Microstar configuration and was manufactured by OSCG for US-based communication purposes related to M2M/IoT applications. The satellite measures 0.2 meters in length with a diameter of 1 meter and has a span of 4.3 meters, featuring two deployable solar arrays and batteries for power supply. Its dry mass is recorded at 42 kilograms and it was designed with an expected lifetime of 4 years. Equipped with an Orbcomm payload, the satellite's shape consists of a cylindrical body with two panels and antennas, and its radar cross-section (RCS) value is 0.6458 square meters. The satellite was owned by ORBC and operated under the Microstar bus system.
Physical Characteristics
Length
0.2
Diameter
1
Span
4.3
Dry Mass
42
Launch Mass
42
Shape
Cyl + 2 Pan + Ant
Radar Cross Section
0.6458
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
Orbcomm FM24
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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