STARLINK-33959, 63817
Orbit data source: Space-Track
STARLINK-33959, 63817 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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63817 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: 16 hours ago
TLE from 16 hours ago
0 STARLINK-33959
1 63817U 25092P 26038.18076341 .00043645 00000-0 15865-2 0 9991
2 63817 43.0023 344.4168 0004928 240.4905 119.5456 15.27565468 44004Epoch: 2026-02-07T04:20Z
TLE epoch observation values (Epoch: 2026-02-07T04:20:17.958Z)
Latitude
0.00001°
Longitude
142.03401°
Altitude
484.537 km
Speed
7.624 km/s
True Right ascension
22h 57m 40s
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
22:36:42
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
488.42 km
Perigee altitude
481.655 km
Semi-major axis
6,863.174 km
Eccentricity
0.00049
Inclination
43.0023°
RAAN
344.4168°
Arg. of periapsis
240.4905°
True anomaly
119.59471°
Mean anomaly
119.5456°
Eccentric anomaly
119.57016°
Mean motion
3.81729 °/min
Orbital period
94.31 mins
BSTAR
0.0015865
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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-33959 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 | 2026-02-07 23:22:18.788Z | 207.608° SW | 2026-02-07 23:25:18.788Z | 136.894° SSE | 27.709° | 2026-02-07 23:28:18.788Z | 84.999° E |
| 6 mins | 2026-02-08 01:01:18.788Z | 262.918° W | 2026-02-08 01:03:18.788Z | 293.339° NW | 41.779° | 2026-02-08 01:07:18.788Z | 70.637° E |
| 6 mins | 2026-02-08 02:40:18.788Z | 290.485° WNW | 2026-02-08 02:43:18.788Z | 27.162° NE | 37.382° | 2026-02-08 02:46:18.788Z | 80.159° E |
| 6 mins | 2026-02-08 04:19:18.788Z | 285.645° WNW | 2026-02-08 04:22:18.788Z | 150.815° SSE | 43.531° | 2026-02-08 04:25:18.788Z | 115.445° 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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