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: 4 hours ago
TLE from 4 hours ago
0 STARLINK-33959
1 63817U 25092P 26125.27550368 .00040083 00000-0 14580-2 0 9990
2 63817 43.0020 212.5531 0003996 293.7996 66.2436 15.27579203 57322Epoch: 2026-05-05T06:36Z
TLE epoch observation values (Epoch: 2026-05-05T06:36:43.517Z)
Latitude
-0.00007°
Longitude
-109.78098°
Altitude
481.724 km
Speed
7.627 km/s
True Right ascension
14h 10m 12s
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
18:55:42
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
487.739 km
Perigee altitude
482.254 km
Semi-major axis
6,863.133 km
Eccentricity
0.0004
Inclination
43.002°
RAAN
212.5531°
Arg. of periapsis
293.7996°
True anomaly
66.28552°
Mean anomaly
66.2436°
Eccentric anomaly
66.26456°
Mean motion
3.81733 °/min
Orbital period
94.31 mins
BSTAR
0.001458
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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 | 2026-05-05 11:37:50.576Z | 277.11° WNW | 2026-05-05 11:40:50.576Z | 333.789° NNW | 38.324° | 2026-05-05 11:43:50.576Z | 68.692° E |
| 6 mins | 2026-05-05 13:17:50.576Z | 292.907° NW | 2026-05-05 13:20:50.576Z | 57.624° ENE | 40.226° | 2026-05-05 13:23:50.576Z | 95.167° ESE |
| 5 mins | 2026-05-05 14:56:50.576Z | 269.988° W | 2026-05-05 14:58:50.576Z | 224.752° SW | 31.446° | 2026-05-05 15:01:50.576Z | 145.559° SSE |
| 6 mins | 2026-05-06 09:31:50.576Z | 234.955° WSW | 2026-05-06 09:33:50.576Z | 199.553° SSW | 40.27° | 2026-05-06 09:37:50.576Z | 75.252° 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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