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: 20 hours ago
TLE from 20 hours ago
0 ORBCOMM FM 15
1 25418U 98046F 26259.20092832 .00000662 00000-0 25422-3 0 9999
2 25418 44.9956 171.3169 0004433 48.9182 311.2049 14.39823929469945Epoch: 2026-09-16T04:49Z
TLE epoch observation values (Epoch: 2026-09-16T04:49:20.206Z)
Latitude
-0.00005°
Longitude
103.82673°
Altitude
756.995 km
Speed
7.479 km/s
True Right ascension
11h 25m 16s
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
17:30:45
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
763.793 km
Perigee altitude
757.464 km
Semi-major axis
7,138.765 km
Eccentricity
0.00044
Inclination
44.9956°
RAAN
171.3169°
Arg. of periapsis
48.9182°
True anomaly
311.16667°
Mean anomaly
311.2049°
Eccentric anomaly
311.18579°
Mean motion
3.59839 °/min
Orbital period
100.04 mins
BSTAR
0.00025422
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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 | 2026-09-17 01:11:20.012Z | 294.036° NW | 2026-09-17 01:16:20.012Z | 25.941° NE | 51.785° | 2026-09-17 01:20:20.012Z | 83.912° E |
| 9 mins | 2026-09-17 02:57:20.012Z | 289.818° WNW | 2026-09-17 03:01:20.012Z | 198.276° SSW | 72.966° | 2026-09-17 03:06:20.012Z | 124.648° SE |
| 6 mins | 2026-09-17 04:43:20.012Z | 255.732° W | 2026-09-17 04:45:20.012Z | 229.602° WSW | 18.912° | 2026-09-17 04:49:20.012Z | 180.35° SSW |
| 8 mins | 2026-09-17 20:59:20.012Z | 218.657° SW | 2026-09-17 21:03:20.012Z | 130.684° SE | 53.076° | 2026-09-17 21:07:20.012Z | 73.826° E |
| 9 mins | 2026-09-17 22:44:20.012Z | 270.155° WNW | 2026-09-17 22:48:20.012Z | 0.437° NNE | 58.97° | 2026-09-17 22:53:20.012Z | 66.095° ENE |
| 8 mins | 2026-09-18 00:30:20.012Z | 298.134° NW | 2026-09-18 00:33:20.012Z | 351.628° N | 49.087° | 2026-09-18 00:38:20.012Z | 79.592° E |
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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