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 + 1 Pan, 14.5 m
Radar Cross Section
41.120 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 25259.91905807 .00036297 00000-0 13221-2 0 9993
2 63817 43.0024 73.4778 0001725 260.2894 99.7763 15.27577692 22097Epoch: 2025-09-16T22:03Z
TLE epoch observation values (Epoch: 2025-09-16T22:03:26.617Z)
Latitude
0°
Longitude
106.51444°
Altitude
483.033 km
Speed
7.626 km/s
True Right ascension
04h 53m 54s
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
11:16:39
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
486.185 km
Perigee altitude
483.817 km
Semi-major axis
6,863.138 km
Eccentricity
0.00017
Inclination
43.0024°
RAAN
73.4778°
Arg. of periapsis
260.2894°
True anomaly
99.79578°
Mean anomaly
99.7763°
Eccentric anomaly
99.78604°
Mean motion
3.81732 °/min
Orbital period
94.31 mins
BSTAR
0.0013221
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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 | 2025-09-17 18:51:21.668Z | 291.15° WNW | 2025-09-17 18:54:21.668Z | 14.336° NNE | 42.184° | 2025-09-17 18:57:21.668Z | 93.01° ESE |
| 5 mins | 2025-09-17 20:31:21.668Z | 264.421° W | 2025-09-17 20:33:21.668Z | 201.659° SSW | 32.665° | 2025-09-17 20:36:21.668Z | 140.456° SSE |
| 5 mins | 2025-09-18 15:06:21.668Z | 230.204° WSW | 2025-09-18 15:08:21.668Z | 147.672° SSE | 41.743° | 2025-09-18 15:11:21.668Z | 76.797° E |
| 5 mins | 2025-09-18 16:45:21.668Z | 284.896° WNW | 2025-09-18 16:47:21.668Z | 358.494° N | 39.213° | 2025-09-18 16:50:21.668Z | 70.262° E |
| 5 mins | 2025-09-18 18:24:21.668Z | 295.175° NW | 2025-09-18 18:26:21.668Z | 356.662° N | 41.801° | 2025-09-18 18:29:21.668Z | 91.765° ESE |
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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