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: 2 days ago
TLE from 2 days ago
0 ORBCOMM FM 15
1 25418U 98046F 26171.21617829 .00000448 00000-0 18691-3 0 9994
2 25418 44.9953 229.7007 0004225 314.6849 45.3655 14.39689721457263Epoch: 2026-06-20T05:11Z
TLE epoch observation values (Epoch: 2026-06-20T05:11:17.804Z)
Latitude
-0.00002°
Longitude
-116.55749°
Altitude
757.404 km
Speed
7.478 km/s
True Right ascension
15h 18m 48s
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
00:51:09
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
764.088 km
Perigee altitude
758.055 km
Semi-major axis
7,139.209 km
Eccentricity
0.00042
Inclination
44.9953°
RAAN
229.7007°
Arg. of periapsis
314.6849°
True anomaly
45.39997°
Mean anomaly
45.3655°
Eccentric anomaly
45.38273°
Mean motion
3.59806 °/min
Orbital period
100.05 mins
BSTAR
0.00018691
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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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-06-23 04:58:35.362Z | 167.067° S | 2026-06-23 05:00:35.362Z | 138.187° SSE | 19.681° | 2026-06-23 05:03:35.362Z | 97.883° ESE |
| 8 mins | 2026-06-23 06:41:35.362Z | 236.742° WSW | 2026-06-23 06:45:35.362Z | 107.107° ESE | 43.725° | 2026-06-23 06:49:35.362Z | 68.614° E |
| 9 mins | 2026-06-23 08:26:35.362Z | 279.736° WNW | 2026-06-23 08:30:35.362Z | 353.769° N | 38.29° | 2026-06-23 08:35:35.362Z | 68.383° E |
| 8 mins | 2026-06-23 10:12:35.362Z | 298.707° NW | 2026-06-23 10:16:35.362Z | 30.833° NE | 39.395° | 2026-06-23 10:20:35.362Z | 88.418° E |
| 9 mins | 2026-06-23 11:57:35.362Z | 286.43° WNW | 2026-06-23 12:01:35.362Z | 199.368° SSW | 41.414° | 2026-06-23 12:06:35.362Z | 130.824° SE |
| 4 mins | 2026-06-23 13:44:35.362Z | 240.982° WSW | 2026-06-23 13:45:35.362Z | 228.259° WSW | 14.771° | 2026-06-23 13:48:35.362Z | 192.861° SSW |
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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