ORBCOMM FM 4, 25159
Orbit data source: Space-Track
ORBCOMM FM 4, 25159 is a payload satellite owned by Orbcomm (US) in LEO that was launched on Tue, 10 Feb 1998 UTC via a TAURUS 2210 launch vehicle from the Air Force Western Test Range (AFWTR). 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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25159 intel report (Beta)
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Edit Public Description
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: 7 hours ago
TLE from 7 hours ago
0 ORBCOMM FM 4
1 25159U 98007C 25346.98914263 .00002037 00000-0 74859-3 0 9996
2 25159 107.9626 146.3522 0042428 291.5111 68.1509 14.35271975449873Epoch: 2025-12-12T23:44Z
TLE epoch observation values (Epoch: 2025-12-12T23:44:21.923Z)
Latitude
-0°
Longitude
68.338°
Altitude
765.469 km
Speed
7.478 km/s
True Right ascension
09h 45m 24s
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
05:23:55
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
802.304 km
Perigee altitude
741.631 km
Semi-major axis
7,150.104 km
Eccentricity
0.00424
Inclination
107.9626°
RAAN
146.3522°
Arg. of periapsis
291.5111°
True anomaly
68.60305°
Mean anomaly
68.1509°
Eccentric anomaly
68.37689°
Mean motion
3.58984 °/min
Orbital period
100.28 mins
BSTAR
0.00074859
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Other satellites on launch #7 in the year 1998 (1998-02-10 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 4 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 | 2025-12-13 09:55:31.125Z | 135.467° SSE | 2025-12-13 09:58:31.125Z | 78.403° E | 41.312° | 2025-12-13 10:03:31.125Z | 341.657° N |
| 4 mins | 2025-12-13 11:35:31.125Z | 232.351° WSW | 2025-12-13 11:37:31.125Z | 260.253° W | 16.283° | 2025-12-13 11:39:31.125Z | 286.353° WNW |
| 8 mins | 2025-12-13 23:45:31.125Z | 49.098° ENE | 2025-12-13 23:48:31.125Z | 103.189° ESE | 33.962° | 2025-12-13 23:53:31.125Z | 181.357° SSW |
| 7 mins | 2025-12-14 01:23:31.125Z | 354.436° N | 2025-12-14 01:26:31.125Z | 308.537° NW | 25.34° | 2025-12-14 01:30:31.125Z | 252.069° W |
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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