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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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, 17.7 m
Radar Cross Section
41.120 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 2 days ago
TLE from 2 days ago
0 STARLINK-33959
1 63817U 25092P 26252.25596214 .00014270 00000-0 52639-3 0 9996
2 63817 42.9990 215.4346 0001852 246.8029 113.2627 15.27621518 76746Epoch: 2026-09-09T06:08Z
TLE epoch observation values (Epoch: 2026-09-09T06:08:35.128Z)
Latitude
-0.00008°
Longitude
134.97751°
Altitude
483.202 km
Speed
7.625 km/s
True Right ascension
14h 21m 44s
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
19:44:44
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
486.141 km
Perigee altitude
483.599 km
Semi-major axis
6,863.007 km
Eccentricity
0.00019
Inclination
42.999°
RAAN
215.4346°
Arg. of periapsis
246.8029°
True anomaly
113.2822°
Mean anomaly
113.2627°
Eccentric anomaly
113.27245°
Mean motion
3.81743 °/min
Orbital period
94.3 mins
BSTAR
0.00052639
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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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2026-09-11 04:01:31.717Z | 289.818° WNW | 2026-09-11 04:04:31.717Z | 343.777° N | 54.282° | 2026-09-11 04:08:31.717Z | 88.085° E |
| 5 mins | 2026-09-11 05:41:31.717Z | 276.959° WNW | 2026-09-11 05:43:31.717Z | 227.257° WSW | 53.13° | 2026-09-11 05:46:31.717Z | 131.431° SE |
| 5 mins | 2026-09-12 00:16:31.717Z | 220.296° SW | 2026-09-12 00:18:31.717Z | 171.665° S | 46.551° | 2026-09-12 00:21:31.717Z | 83.211° E |
| 6 mins | 2026-09-12 01:55:31.717Z | 275.411° WNW | 2026-09-12 01:57:31.717Z | 328.325° NNW | 57.919° | 2026-09-12 02:01:31.717Z | 71.033° 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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