OPS 3899, 14139
Orbit data source: Space-Track
OPS 3899, 14139 is an American payload satellite in SSO that was launched on Mon, 20 Jun 1983 UTC via a TITAN 34D 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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14139 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
LMSC
Mission
Spacecraft
Bus & Motor
SSU C, Unknown motor
Mass
~120 kg wet, ~100 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 13 hours ago
TLE from 13 hours ago
0 OPS 3899
1 14139U 83060C 26094.80381870 -.00000203 00000-0 -66567-3 0 9991
2 14139 96.6803 16.8417 0001061 133.0217 227.0983 12.93984768326340Epoch: 2026-04-04T19:17Z
TLE epoch observation values (Epoch: 2026-04-04T19:17:29.935Z)
Latitude
-0.00004°
Longitude
-105.65137°
Altitude
1,289.097 km
Speed
7.211 km/s
True Right ascension
01h 07m 22s
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
14:19:03
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,283.811 km
Perigee altitude
1,282.185 km
Semi-major axis
7,661.135 km
Eccentricity
0.00011
Inclination
96.6803°
RAAN
16.8417°
Arg. of periapsis
133.0217°
True anomaly
227.08939°
Mean anomaly
227.0983°
Eccentric anomaly
227.09385°
Mean motion
3.23671 °/min
Orbital period
111.22 mins
BSTAR
-0.00066567
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Other satellites on launch #60 in the year 1983 (1983-06-20 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.OPS 3899 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. |
|---|---|---|---|---|---|---|---|
| 11 mins | 2026-04-05 08:52:53.688Z | 346.945° N | 2026-04-05 08:58:53.688Z | 290.971° WNW | 24.458° | 2026-04-05 09:03:53.688Z | 245.505° WSW |
| 11 mins | 2026-04-05 17:41:53.688Z | 123.023° SE | 2026-04-05 17:46:53.688Z | 71.53° E | 29.871° | 2026-04-05 17:52:53.688Z | 9.625° NNE |
| 13 mins | 2026-04-05 19:30:53.688Z | 197.199° SSW | 2026-04-05 19:36:53.688Z | 263.599° W | 35.673° | 2026-04-05 19:43:53.688Z | 336.249° NNW |
| 14 mins | 2026-04-06 07:09:53.688Z | 17.168° NNE | 2026-04-06 07:16:53.688Z | 122.895° SE | 42.67° | 2026-04-06 07:23:53.688Z | 182.041° SSW |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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