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: 14 hours ago
TLE from 14 hours ago
0 STARLINK-34142
1 63957U 25099F 26171.40977916 .00020464 00000-0 75087-3 0 9991
2 63957 43.0013 316.3218 0001589 269.8498 90.2172 15.27590413 63047Epoch: 2026-06-20T09:50Z
TLE epoch observation values (Epoch: 2026-06-20T09:50:04.919Z)
Latitude
0.00001°
Longitude
-99.82349°
Altitude
482.798 km
Speed
7.626 km/s
True Right ascension
21h 05m 17s
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
10:20:18
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
486.053 km
Perigee altitude
483.872 km
Semi-major axis
6,863.1 km
Eccentricity
0.00016
Inclination
43.0013°
RAAN
316.3218°
Arg. of periapsis
269.8498°
True anomaly
90.23541°
Mean anomaly
90.2172°
Eccentric anomaly
90.2263°
Mean motion
3.81736 °/min
Orbital period
94.31 mins
BSTAR
0.00075087
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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 | 2026-06-21 12:43:02.819Z | 212.594° SW | 2026-06-21 12:46:02.819Z | 140.724° SSE | 30.101° | 2026-06-21 12:49:02.819Z | 84.246° E |
| 6 mins | 2026-06-21 14:22:02.819Z | 265.552° W | 2026-06-21 14:25:02.819Z | 30.767° NE | 41.302° | 2026-06-21 14:28:02.819Z | 70.205° E |
| 5 mins | 2026-06-21 16:02:02.819Z | 298.766° NW | 2026-06-21 16:04:02.819Z | 19.337° NNE | 38.33° | 2026-06-21 16:07:02.819Z | 81.192° E |
| 5 mins | 2026-06-21 17:41:02.819Z | 280.697° WNW | 2026-06-21 17:43:02.819Z | 179.644° S | 43.263° | 2026-06-21 17:46:02.819Z | 119.123° SE |
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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