STARLINK-33999, 63857
Orbit data source: Space-Track
STARLINK-33999, 63857 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Wed, 07 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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63857 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: 8 hours ago
TLE from 8 hours ago
0 STARLINK-33999
1 63857U 25093X 25349.86416232 .00012387 00000-0 45885-3 0 9997
2 63857 42.9983 191.1370 0001133 268.0020 92.0702 15.27583544 35152Epoch: 2025-12-15T20:44Z
TLE epoch observation values (Epoch: 2025-12-15T20:44:23.624Z)
Latitude
-0.00001°
Longitude
155.28195°
Altitude
482.842 km
Speed
7.626 km/s
True Right ascension
12h 44m 32s
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
03:26:43
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
485.762 km
Perigee altitude
484.206 km
Semi-major axis
6,863.121 km
Eccentricity
0.00011
Inclination
42.9983°
RAAN
191.137°
Arg. of periapsis
268.002°
True anomaly
92.08317°
Mean anomaly
92.0702°
Eccentric anomaly
92.07669°
Mean motion
3.81734 °/min
Orbital period
94.31 mins
BSTAR
0.00045885
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Other satellites on launch #93 in the year 2025 (2025-05-07 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-33999 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 | 2025-12-16 17:22:50.932Z | 231.973° WSW | 2025-12-16 17:24:50.932Z | 187.579° SSW | 40.278° | 2025-12-16 17:28:50.932Z | 75.6° E |
| 6 mins | 2025-12-16 19:01:50.932Z | 280.536° WNW | 2025-12-16 19:03:50.932Z | 327.019° NNW | 38.268° | 2025-12-16 19:07:50.932Z | 72.369° E |
| 6 mins | 2025-12-16 20:40:50.932Z | 292.779° NW | 2025-12-16 20:43:50.932Z | 48.377° ENE | 40.294° | 2025-12-16 20:46:50.932Z | 93.019° ESE |
| 6 mins | 2025-12-16 22:19:50.932Z | 272.673° WNW | 2025-12-16 22:21:50.932Z | 230.261° WSW | 32.623° | 2025-12-16 22:25:50.932Z | 136.698° SSE |
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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