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.
Focus sentinelFocus sentinel
Request partner network tasking
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
25416 intel report (Beta)
Focus sentinelFocus sentinel
Edit Public Description
Focus sentinelFocus sentinel
Edit Sat Name
Focus sentinelFocus sentinel
Create New Watchlist
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: 16 hours ago
TLE from 16 hours ago
0 ORBCOMM FM 20
1 25416U 98046D 26307.70987003 .00000388 00000-0 17278-3 0 9994
2 25416 44.9945 309.7288 0003390 282.7285 77.3185 14.38231181476876Epoch: 2026-11-03T17:02Z
TLE epoch observation values (Epoch: 2026-11-03T17:02:12.770Z)
Latitude
0.00004°
Longitude
11.20699°
Altitude
763.816 km
Speed
7.474 km/s
True Right ascension
20h 38m 54s
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
04:41:15
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
768.317 km
Perigee altitude
763.474 km
Semi-major axis
7,144.033 km
Eccentricity
0.00034
Inclination
44.9945°
RAAN
309.7288°
Arg. of periapsis
282.7285°
True anomaly
77.3564°
Mean anomaly
77.3185°
Eccentric anomaly
77.33745°
Mean motion
3.59441 °/min
Orbital period
100.16 mins
BSTAR
0.00017278
Loading maneuver chart data...
Computing Atmospheric mass density...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Other satellites on launch #46 in the year 1998 (1998-08-02 UTC)
Did you know?
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
Loading observer location...
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 | 2026-11-04 10:14:15.739Z | 278.372° WNW | 2026-11-04 10:18:15.739Z | 227.899° WSW | 31.084° | 2026-11-04 10:23:15.739Z | 158.249° S |
| 8 mins | 2026-11-05 02:33:15.739Z | 200.097° SSW | 2026-11-05 02:37:15.739Z | 133.248° SE | 34.968° | 2026-11-05 02:41:15.739Z | 80.265° E |
| 9 mins | 2026-11-05 04:18:15.739Z | 256.175° W | 2026-11-05 04:22:15.739Z | 20.352° NNE | 71.203° | 2026-11-05 04:27:15.739Z | 65.751° ENE |
| 8 mins | 2026-11-05 06:04:15.739Z | 293.432° NW | 2026-11-05 06:07:15.739Z | 349.404° N | 48.305° | 2026-11-05 06:12:15.739Z | 72.533° E |
| 9 mins | 2026-11-05 07:49:15.739Z | 297.019° NW | 2026-11-05 07:53:15.739Z | 22.895° NE | 70.731° | 2026-11-05 07:58:15.739Z | 102.819° ESE |
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 |
|---|
CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
Authenticating...
Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in descending order |
|---|