ORBCOMM FM 15, 25418
Orbit data source: Space-Track
ORBCOMM FM 15, 25418 is a payload satellite owned by Orbcomm (US) in LEO that was launched on Sun, 02 Aug 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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25418 intel report (Beta)
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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, 4.2 m
Radar Cross Section
1.484 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 5 hours ago
TLE from 5 hours ago
0 ORBCOMM FM 15
1 25418U 98046F 26085.85895520 .00001064 00000-0 38331-3 0 9992
2 25418 44.9961 275.4860 0003460 277.5017 82.5438 14.39502168444965Epoch: 2026-03-26T20:36Z
TLE epoch observation values (Epoch: 2026-03-26T20:36:53.729Z)
Latitude
-0.00005°
Longitude
141.96022°
Altitude
759.823 km
Speed
7.476 km/s
True Right ascension
18h 21m 56s
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
07:19:42
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
764.162 km
Perigee altitude
759.221 km
Semi-major axis
7,139.828 km
Eccentricity
0.00035
Inclination
44.9961°
RAAN
275.486°
Arg. of periapsis
277.5017°
True anomaly
82.58312°
Mean anomaly
82.5438°
Eccentric anomaly
82.56346°
Mean motion
3.59759 °/min
Orbital period
100.07 mins
BSTAR
0.00038331
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Other satellites on launch #46 in the year 1998 (1998-08-02 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 15 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 | 2026-03-27 15:06:04.602Z | 205.232° SW | 2026-03-27 15:10:04.602Z | 151.611° SSE | 29.93° | 2026-03-27 15:15:04.602Z | 78.804° E |
| 9 mins | 2026-03-27 16:51:04.602Z | 255.245° W | 2026-03-27 16:55:04.602Z | 312.424° NW | 43.801° | 2026-03-27 17:00:04.602Z | 65.184° ENE |
| 8 mins | 2026-03-27 18:37:04.602Z | 289.992° WNW | 2026-03-27 18:41:04.602Z | 6.969° NNE | 36.877° | 2026-03-27 18:45:04.602Z | 70.806° E |
| 8 mins | 2026-03-27 20:23:04.602Z | 298.114° NW | 2026-03-27 20:26:04.602Z | 345.594° N | 42.944° | 2026-03-27 20:31:04.602Z | 102.845° ESE |
| 8 mins | 2026-03-27 22:08:04.602Z | 274.347° WNW | 2026-03-27 22:11:04.602Z | 225.121° WSW | 31.734° | 2026-03-27 22:16:04.602Z | 150.197° SSE |
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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