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 + 2 Pan, 17.7 m
Radar Cross Section
36.964 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 12 hours ago
TLE from 12 hours ago
0 STARLINK-33959
1 63817U 25092P 26087.35135414 .00022426 00000-0 82119-3 0 9992
2 63817 43.0021 66.7301 0001005 279.3676 80.7062 15.27612199 51525Epoch: 2026-03-28T08:25Z
TLE epoch observation values (Epoch: 2026-03-28T08:25:56.997Z)
Latitude
-0.00003°
Longitude
114.46974°
Altitude
482.617 km
Speed
7.626 km/s
True Right ascension
04h 26m 55s
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
01:55:51
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
485.587 km
Perigee altitude
484.208 km
Semi-major axis
6,863.035 km
Eccentricity
0.0001
Inclination
43.0021°
RAAN
66.7301°
Arg. of periapsis
279.3676°
True anomaly
80.71757°
Mean anomaly
80.7062°
Eccentric anomaly
80.71188°
Mean motion
3.81741 °/min
Orbital period
94.3 mins
BSTAR
0.00082119
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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 | 2026-03-29 01:54:14.901Z | 217.526° SW | 2026-03-29 01:57:14.901Z | 143.796° SSE | 32.715° | 2026-03-29 02:00:14.901Z | 83.036° E |
| 6 mins | 2026-03-29 03:33:14.901Z | 268.27° W | 2026-03-29 03:36:14.901Z | 18.176° NNE | 41.303° | 2026-03-29 03:39:14.901Z | 69.852° E |
| 5 mins | 2026-03-29 05:13:14.901Z | 297.791° NW | 2026-03-29 05:15:14.901Z | 12.63° NNE | 39.075° | 2026-03-29 05:18:14.901Z | 82.661° E |
| 5 mins | 2026-03-29 06:52:14.901Z | 278.231° WNW | 2026-03-29 06:54:14.901Z | 196.674° SSW | 42.088° | 2026-03-29 06:57:14.901Z | 123.325° 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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