ORBCOMM FM 20, 25416
Orbit data source: Space-Track
ORBCOMM FM 20, 25416 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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25416 intel report (Beta)
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Identifier
Orbit
Country
US / ORBRelated business
Manufacturer
OSC-Germantown
Mission
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: 1 day ago
TLE from 1 day ago
0 ORBCOMM FM 20
1 25416U 98046D 26259.08517005 .00000509 00000-0 21274-3 0 9998
2 25416 44.9932 180.3747 0002099 355.0859 4.9969 14.38172306469872Epoch: 2026-09-16T02:02Z
TLE epoch observation values (Epoch: 2026-09-16T02:02:38.692Z)
Latitude
0.00004°
Longitude
154.6717°
Altitude
763.048 km
Speed
7.475 km/s
True Right ascension
12h 01m 29s
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
18:36:24
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
767.59 km
Perigee altitude
764.591 km
Semi-major axis
7,144.228 km
Eccentricity
0.00021
Inclination
44.9932°
RAAN
180.3747°
Arg. of periapsis
355.0859°
True anomaly
4.999°
Mean anomaly
4.9969°
Eccentric anomaly
4.99795°
Mean motion
3.59427 °/min
Orbital period
100.16 mins
BSTAR
0.00021274
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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 20 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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2026-09-17 03:32:47.598Z | 288.445° WNW | 2026-09-17 03:35:47.598Z | 245.424° WSW | 68.047° | 2026-09-17 03:40:47.598Z | 125.98° SE |
| 5 mins | 2026-09-17 05:18:47.598Z | 251.516° W | 2026-09-17 05:20:47.598Z | 224.489° SW | 18.807° | 2026-09-17 05:23:47.598Z | 186.639° SSW |
| 8 mins | 2026-09-17 21:35:47.598Z | 219.222° SW | 2026-09-17 21:38:47.598Z | 168.53° S | 54.59° | 2026-09-17 21:43:47.598Z | 72.803° E |
| 9 mins | 2026-09-17 23:20:47.598Z | 271.372° WNW | 2026-09-17 23:24:47.598Z | 2.308° NNE | 58.119° | 2026-09-17 23:29:47.598Z | 66.311° ENE |
| 8 mins | 2026-09-18 01:06:47.598Z | 297.858° NW | 2026-09-18 01:09:47.598Z | 348.334° N | 49.152° | 2026-09-18 01:14:47.598Z | 79.929° 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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