ORBCOMM FM 24, 25478
Orbit data source: Space-Track
ORBCOMM FM 24, 25478 is a payload satellite owned by Orbcomm (US) in LEO that was launched on Wed, 23 Sep 1998 UTC via a PEGASUS XL/HAPS launch vehicle from the Pegasus Launch, Eastern Range Air Space (ERAS). Payload-class satellites include a variety of spacecraft equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.
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25478 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
US / ORBRelated business
Manufacturer
OSC-Germantown
Mission
Non-operational Commercial Communications
Bus & Motor
MICROSTAR, Unknown motor
Mass
42 kg wet, 42 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Cyl + 2 Pan, 2.1 m
Radar Cross Section
1.484 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 19 hours ago
TLE from 19 hours ago
0 ORBCOMM FM 24
1 25478U 98053D 25348.82641524 .00001058 00000-0 38816-3 0 9998
2 25478 45.0056 132.2775 0001803 90.1311 269.9744 14.38659773423454Epoch: 2025-12-14T19:50Z
TLE epoch observation values (Epoch: 2025-12-14T19:50:02.276Z)
Latitude
-0.00004°
Longitude
111.03422°
Altitude
762.93 km
Speed
7.474 km/s
True Right ascension
08h 49m 06s
True Declination
0° 00' 00"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
13:22:49
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
765.763 km
Perigee altitude
763.188 km
Semi-major axis
7,142.613 km
Eccentricity
0.00018
Inclination
45.0056°
RAAN
132.2775°
Arg. of periapsis
90.1311°
True anomaly
269.95374°
Mean anomaly
269.9744°
Eccentric anomaly
269.96407°
Mean motion
3.59549 °/min
Orbital period
100.13 mins
BSTAR
0.00038816
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Other satellites on launch #53 in the year 1998 (1998-09-23 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.ORBCOMM FM 24 Visibility forecast
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Span | Click to sort rows by Start time (UTC) header in descending order | Start Az. | Max El. time (UTC) | Max El. Az. | Max El. | End time (UTC) | End Az. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2025-12-15 16:11:14.928Z | 289.522° WNW | 2025-12-15 16:16:14.928Z | 10.319° NNE | 37.191° | 2025-12-15 16:20:14.928Z | 75.593° E |
| 8 mins | 2025-12-15 17:58:14.928Z | 294.673° NW | 2025-12-15 18:01:14.928Z | 310.729° NW | 44.306° | 2025-12-15 18:06:14.928Z | 112.547° SE |
| 7 mins | 2025-12-15 19:43:14.928Z | 268.003° W | 2025-12-15 19:46:14.928Z | 223.452° SW | 25.296° | 2025-12-15 19:50:14.928Z | 166.423° S |
| 8 mins | 2025-12-16 12:01:14.928Z | 199.685° SSW | 2025-12-16 12:04:14.928Z | 147.416° SSE | 31.598° | 2025-12-16 12:09:14.928Z | 76.966° E |
| 9 mins | 2025-12-16 13:45:14.928Z | 257.665° W | 2025-12-16 13:49:14.928Z | 327.577° NNW | 43.547° | 2025-12-16 13:54:14.928Z | 65.151° ENE |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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