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: 20 hours ago
TLE from 20 hours ago
0 STARLINK-33959
1 63817U 25092P 26034.32295173 .00026643 00000-0 97340-3 0 9997
2 63817 43.0035 6.2056 0001273 264.4313 95.6393 15.27607798 43416Epoch: 2026-02-03T07:45Z
TLE epoch observation values (Epoch: 2026-02-03T07:45:03.029Z)
Latitude
-0.00005°
Longitude
116.43738°
Altitude
482.828 km
Speed
7.626 km/s
True Right ascension
00h 24m 49s
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
05:39:59
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
485.784 km
Perigee altitude
484.037 km
Semi-major axis
6,863.047 km
Eccentricity
0.00013
Inclination
43.0035°
RAAN
6.2056°
Arg. of periapsis
264.4313°
True anomaly
95.65382°
Mean anomaly
95.6393°
Eccentric anomaly
95.64656°
Mean motion
3.8174 °/min
Orbital period
94.31 mins
BSTAR
0.0009734
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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 | 2026-02-04 04:31:09.506Z | 290.872° WNW | 2026-02-04 04:34:09.506Z | 25.547° NE | 37.903° | 2026-02-04 04:37:09.506Z | 81.516° E |
| 5 mins | 2026-02-04 06:11:09.506Z | 280.293° WNW | 2026-02-04 06:13:09.506Z | 167.068° S | 42.91° | 2026-02-04 06:16:09.506Z | 118.726° SE |
| 5 mins | 2026-02-05 00:46:09.506Z | 200.82° SSW | 2026-02-05 00:48:09.506Z | 143.871° SSE | 29.541° | 2026-02-05 00:51:09.506Z | 85.265° E |
| 6 mins | 2026-02-05 02:24:09.506Z | 264.39° W | 2026-02-05 02:27:09.506Z | 27.141° NE | 41.979° | 2026-02-05 02:30:09.506Z | 70.088° E |
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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