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 + 2 Pan, 17.7 m
Radar Cross Section
36.964 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 11 hours ago
TLE from 11 hours ago
0 STARLINK-33940
1 63831U 25092AD 25354.11151588 .00014925 00000-0 55073-3 0 9992
2 63831 42.9979 262.0086 0001937 273.2232 86.8397 15.27583299 36492Epoch: 2025-12-20T02:40Z
TLE epoch observation values (Epoch: 2025-12-20T02:40:34.972Z)
Latitude
-0.00007°
Longitude
132.91981°
Altitude
482.741 km
Speed
7.626 km/s
True Right ascension
17h 28m 02s
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
13:07:09
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
486.314 km
Perigee altitude
483.655 km
Semi-major axis
6,863.122 km
Eccentricity
0.00019
Inclination
42.9979°
RAAN
262.0086°
Arg. of periapsis
273.2232°
True anomaly
86.86186°
Mean anomaly
86.8397°
Eccentric anomaly
86.85078°
Mean motion
3.81734 °/min
Orbital period
94.31 mins
BSTAR
0.00055073
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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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2025-12-20 21:44:58.502Z | 224.563° SW | 2025-12-20 21:46:58.502Z | 151.556° SSE | 39.786° | 2025-12-20 21:49:58.502Z | 78.679° E |
| 5 mins | 2025-12-20 23:23:58.502Z | 281.926° WNW | 2025-12-20 23:25:58.502Z | 356.632° N | 39.891° | 2025-12-20 23:28:58.502Z | 69.654° E |
| 5 mins | 2025-12-21 01:02:58.502Z | 295.509° NW | 2025-12-21 01:04:58.502Z | 355.19° N | 40.905° | 2025-12-21 01:07:58.502Z | 88.68° E |
| 5 mins | 2025-12-21 02:41:58.502Z | 270.999° WNW | 2025-12-21 02:43:58.502Z | 211.945° SW | 35.951° | 2025-12-21 02:46:58.502Z | 136.473° 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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