STARLINK-34137, 63953
Orbit data source: Space-Track
STARLINK-34137, 63953 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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63953 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: 12 hours ago
TLE from 12 hours ago
0 STARLINK-34137
1 63953U 25099B 26171.46360234 .00013584 00000-0 50215-3 0 9993
2 63953 43.0061 315.8664 0002136 284.4871 75.5744 15.27586326 63052Epoch: 2026-06-20T11:07Z
TLE epoch observation values (Epoch: 2026-06-20T11:07:35.242Z)
Latitude
0.00002°
Longitude
-119.70828°
Altitude
482.441 km
Speed
7.626 km/s
True Right ascension
21h 03m 27s
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
10:20:21
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
486.44 km
Perigee altitude
483.508 km
Semi-major axis
6,863.111 km
Eccentricity
0.00021
Inclination
43.0061°
RAAN
315.8664°
Arg. of periapsis
284.4871°
True anomaly
75.59811°
Mean anomaly
75.5744°
Eccentric anomaly
75.58625°
Mean motion
3.81735 °/min
Orbital period
94.31 mins
BSTAR
0.00050215
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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-34137 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 | 2026-06-21 12:26:06.510Z | 198.716° SSW | 2026-06-21 12:28:06.510Z | 157.506° S | 24.712° | 2026-06-21 12:31:06.510Z | 92.755° ESE |
| 5 mins | 2026-06-21 14:05:06.510Z | 259.128° W | 2026-06-21 14:07:06.510Z | 328.952° NNW | 44.463° | 2026-06-21 14:10:06.510Z | 70.181° E |
| 5 mins | 2026-06-21 15:44:06.510Z | 292.244° WNW | 2026-06-21 15:46:06.510Z | 346.791° N | 37.68° | 2026-06-21 15:49:06.510Z | 74.943° E |
| 6 mins | 2026-06-21 17:23:06.510Z | 287.437° WNW | 2026-06-21 17:25:06.510Z | 279.576° WNW | 43.575° | 2026-06-21 17:29:06.510Z | 110.776° ESE |
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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