STARLINK-34142, 63957
Orbit data source: Space-Track
STARLINK-34142, 63957 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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63957 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-34142
1 63957U 25099F 26093.86146027 .00051554 00000-0 18721-2 0 9990
2 63957 43.0003 34.2710 0001146 243.3862 116.6872 15.27542216 51180Epoch: 2026-04-03T20:40Z
TLE epoch observation values (Epoch: 2026-04-03T20:40:30.167Z)
Latitude
-0.00003°
Longitude
-108.04424°
Altitude
483.291 km
Speed
7.625 km/s
True Right ascension
02h 17m 05s
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
17:28:53
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
485.894 km
Perigee altitude
484.321 km
Semi-major axis
6,863.244 km
Eccentricity
0.00011
Inclination
43.0003°
RAAN
34.271°
Arg. of periapsis
243.3862°
True anomaly
116.69893°
Mean anomaly
116.6872°
Eccentric anomaly
116.69307°
Mean motion
3.81724 °/min
Orbital period
94.31 mins
BSTAR
0.0018721
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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-34142 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 23:35:08.700Z | 231.465° WSW | 2026-04-04 23:38:08.700Z | 126.266° SE | 39.521° | 2026-04-04 23:41:08.700Z | 76.857° E |
| 6 mins | 2026-04-05 01:14:08.700Z | 277.84° WNW | 2026-04-05 01:17:08.700Z | 19.131° NNE | 38.541° | 2026-04-05 01:20:08.700Z | 71.145° E |
| 5 mins | 2026-04-05 02:54:08.700Z | 297.842° NW | 2026-04-05 02:56:08.700Z | 25.576° NE | 41.266° | 2026-04-05 02:59:08.700Z | 91.087° ESE |
| 5 mins | 2026-04-05 04:33:08.700Z | 265.482° W | 2026-04-05 04:35:08.700Z | 194.626° SSW | 34.521° | 2026-04-05 04:38:08.700Z | 136.389° SSE |
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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