STARLINK-33940, 63831
Orbit data source: Space-Track
STARLINK-33940, 63831 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Sun, 04 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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63831 intel report (Beta)
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Edit Public Description
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 + 1 Pan, 14.5 m
Radar Cross Section
41.120 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 1 day ago
TLE from 1 day ago
0 STARLINK-33940
1 63831U 25092AD 25255.90108403 .00010155 00000-0 37783-3 0 9996
2 63831 42.9999 96.6418 0001872 265.6215 94.4423 15.27596305 21477Epoch: 2025-09-12T21:37Z
TLE epoch observation values (Epoch: 2025-09-12T21:37:33.66Z)
Latitude
0.00001°
Longitude
140.10941°
Altitude
482.875 km
Speed
7.626 km/s
True Right ascension
06h 26m 34s
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
14:37:25
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
486.23 km
Perigee altitude
483.661 km
Semi-major axis
6,863.082 km
Eccentricity
0.00019
Inclination
42.9999°
RAAN
96.6418°
Arg. of periapsis
265.6215°
True anomaly
94.46369°
Mean anomaly
94.4423°
Eccentric anomaly
94.45299°
Mean motion
3.81737 °/min
Orbital period
94.31 mins
BSTAR
0.00037783
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Other satellites on launch #92 in the year 2025 (2025-05-04 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-33940 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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2025-09-13 23:16:18.847Z | 250.101° W | 2025-09-13 23:18:18.847Z | 214.466° SW | 15.531° | 2025-09-13 23:20:18.847Z | 180.693° SSW |
| 4 mins | 2025-09-14 16:13:18.847Z | 195.265° SSW | 2025-09-14 16:14:18.847Z | 167.985° S | 29.129° | 2025-09-14 16:17:18.847Z | 90.158° ESE |
| 6 mins | 2025-09-14 17:51:18.847Z | 266.376° W | 2025-09-14 17:53:18.847Z | 311.354° NW | 42.206° | 2025-09-14 17:57:18.847Z | 70.83° E |
| 6 mins | 2025-09-14 19:30:18.847Z | 292.082° WNW | 2025-09-14 19:32:18.847Z | 333.236° NNW | 36.842° | 2025-09-14 19:36:18.847Z | 82.2° E |
| 6 mins | 2025-09-14 21:09:18.847Z | 283.859° WNW | 2025-09-14 21:12:18.847Z | 150.481° SSE | 41.671° | 2025-09-14 21:15:18.847Z | 118.204° SE |
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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