STARLINK-34139, 63975
Orbit data source: Space-Track
STARLINK-34139, 63975 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Tue, 13 May 2025 UTC via an FALCON 9 launch vehicle from the Air Force Eastern Test Range (AFETR). 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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63975 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
SpaceX/Seattle
Mission
Operational Commercial Communications
Bus & Motor
STARLINK V2MO, Unknown motor
Mass
575 kg wet, ~530 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 17.7 m
Radar Cross Section
36.964 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 15 hours ago
TLE from 15 hours ago
0 STARLINK-34139
1 63975U 25099Z 26093.85551544 .00035364 00000-0 12876-2 0 9999
2 63975 43.0086 30.7499 0007439 291.2878 68.7179 15.27580048 51133Epoch: 2026-04-03T20:31Z
TLE epoch observation values (Epoch: 2026-04-03T20:31:56.534Z)
Latitude
-0.00001°
Longitude
-109.41933°
Altitude
480.976 km
Speed
7.628 km/s
True Right ascension
02h 02m 59s
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
17:27:37
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
490.098 km
Perigee altitude
479.887 km
Semi-major axis
6,863.13 km
Eccentricity
0.00074
Inclination
43.0086°
RAAN
30.7499°
Arg. of periapsis
291.2878°
True anomaly
68.79736°
Mean anomaly
68.7179°
Eccentric anomaly
68.75763°
Mean motion
3.81733 °/min
Orbital period
94.31 mins
BSTAR
0.0012876
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Other satellites on launch #99 in the year 2025 (2025-05-13 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.STARLINK-34139 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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2026-04-04 23:26:52.897Z | 234.59° WSW | 2026-04-04 23:29:52.897Z | 118.226° SE | 40.402° | 2026-04-04 23:32:52.897Z | 75.721° E |
| 6 mins | 2026-04-05 01:05:52.897Z | 279.757° WNW | 2026-04-05 01:08:52.897Z | 20.545° NNE | 38.055° | 2026-04-05 01:11:52.897Z | 71.678° E |
| 5 mins | 2026-04-05 02:45:52.897Z | 297.518° NW | 2026-04-05 02:47:52.897Z | 30.316° NE | 41.813° | 2026-04-05 02:50:52.897Z | 93.115° ESE |
| 5 mins | 2026-04-05 04:24:52.897Z | 262.58° W | 2026-04-05 04:26:52.897Z | 194.831° SSW | 32.769° | 2026-04-05 04:29:52.897Z | 139.096° SSE |
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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