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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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, 4.2 m
Radar Cross Section
1.484 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 9 hours ago
TLE from 9 hours ago
0 ORBCOMM FM 15
1 25418U 98046F 25344.59369845 .00002153 00000-0 73439-3 0 9994
2 25418 44.9968 60.4453 0003268 139.8406 220.2684 14.39150216429656Epoch: 2025-12-10T14:14Z
TLE epoch observation values (Epoch: 2025-12-10T14:14:55.546Z)
Latitude
-0.00004°
Longitude
127.15203°
Altitude
763.086 km
Speed
7.473 km/s
True Right ascension
04h 01m 46s
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
21:06:45
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
765.189 km
Perigee altitude
760.521 km
Semi-major axis
7,140.992 km
Eccentricity
0.00033
Inclination
44.9968°
RAAN
60.4453°
Arg. of periapsis
139.8406°
True anomaly
220.2442°
Mean anomaly
220.2684°
Eccentric anomaly
220.2563°
Mean motion
3.59671 °/min
Orbital period
100.09 mins
BSTAR
0.00073439
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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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2025-12-11 07:03:35.292Z | 178.74° S | 2025-12-11 07:06:35.292Z | 142.485° SSE | 18.468° | 2025-12-11 07:10:35.292Z | 92.649° ESE |
| 9 mins | 2025-12-11 08:47:35.292Z | 234.799° WSW | 2025-12-11 08:51:35.292Z | 145.835° SSE | 43.932° | 2025-12-11 08:56:35.292Z | 68.548° E |
| 8 mins | 2025-12-11 10:33:35.292Z | 281.902° WNW | 2025-12-11 10:36:35.292Z | 338.093° N | 38.312° | 2025-12-11 10:41:35.292Z | 66.781° ENE |
| 9 mins | 2025-12-11 12:18:35.292Z | 296.792° NW | 2025-12-11 12:22:35.292Z | 11.475° NNE | 39.483° | 2025-12-11 12:27:35.292Z | 88.938° E |
| 8 mins | 2025-12-11 14:04:35.292Z | 285.582° WNW | 2025-12-11 14:07:35.292Z | 228.37° WSW | 42.038° | 2025-12-11 14:12:35.292Z | 129.578° SE |
| 4 mins | 2025-12-11 15:50:35.292Z | 247.337° WSW | 2025-12-11 15:52:35.292Z | 221.249° SW | 15.69° | 2025-12-11 15:54:35.292Z | 196.476° 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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