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: 7 hours ago
TLE from 7 hours ago
0 STARLINK-34142
1 63957U 25099F 26094.25378355 .00054561 00000-0 19780-2 0 9992
2 63957 43.0019 32.0542 0001855 244.5250 115.5410 15.27572350 51242Epoch: 2026-04-04T06:05Z
TLE epoch observation values (Epoch: 2026-04-04T06:05:26.898Z)
Latitude
-0.00002°
Longitude
108.1159°
Altitude
483.396 km
Speed
7.625 km/s
True Right ascension
02h 08m 13s
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
19:13:37
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
486.29 km
Perigee altitude
483.744 km
Semi-major axis
6,863.154 km
Eccentricity
0.00019
Inclination
43.0019°
RAAN
32.0542°
Arg. of periapsis
244.525°
True anomaly
115.56018°
Mean anomaly
115.541°
Eccentric anomaly
115.55059°
Mean motion
3.81731 °/min
Orbital period
94.31 mins
BSTAR
0.001978
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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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-04-04 23:35:35.562Z | 228.905° WSW | 2026-04-04 23:37:35.562Z | 172.52° S | 40.341° | 2026-04-04 23:40:35.562Z | 78.905° E |
| 5 mins | 2026-04-05 01:14:35.562Z | 280.871° WNW | 2026-04-05 01:16:35.562Z | 337.725° N | 39.295° | 2026-04-05 01:19:35.562Z | 68.609° E |
| 6 mins | 2026-04-05 02:53:35.562Z | 293.823° NW | 2026-04-05 02:55:35.562Z | 335.315° NNW | 39.961° | 2026-04-05 02:59:35.562Z | 92.417° ESE |
| 5 mins | 2026-04-05 04:32:35.562Z | 272.172° WNW | 2026-04-05 04:34:35.562Z | 223.589° SW | 34.329° | 2026-04-05 04:37:35.562Z | 139.921° 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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