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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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: 18 hours ago
TLE from 18 hours ago
0 STARLINK-33999
1 63857U 25093X 26171.15012772 .00012210 00000-0 45238-3 0 9991
2 63857 42.9999 219.0961 0001572 274.9686 85.0986 15.27586641 63648Epoch: 2026-06-20T03:36Z
TLE epoch observation values (Epoch: 2026-06-20T03:36:11.035Z)
Latitude
-0.00001°
Longitude
-103.31877°
Altitude
482.713 km
Speed
7.626 km/s
True Right ascension
14h 36m 23s
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
08:58:01
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
486.053 km
Perigee altitude
483.896 km
Semi-major axis
6,863.111 km
Eccentricity
0.00016
Inclination
42.9999°
RAAN
219.0961°
Arg. of periapsis
274.9686°
True anomaly
85.11655°
Mean anomaly
85.0986°
Eccentric anomaly
85.10757°
Mean motion
3.81735 °/min
Orbital period
94.31 mins
BSTAR
0.00045238
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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 | 2026-06-21 06:29:59.674Z | 219.417° SW | 2026-06-21 06:32:59.674Z | 130.962° SE | 33.944° | 2026-06-21 06:35:59.674Z | 80.249° E |
| 6 mins | 2026-06-21 08:08:59.674Z | 271.937° WNW | 2026-06-21 08:10:59.674Z | 309.733° NW | 39.436° | 2026-06-21 08:14:59.674Z | 70.606° E |
| 5 mins | 2026-06-21 09:48:59.674Z | 300.41° NW | 2026-06-21 09:50:59.674Z | 29.761° NE | 38.904° | 2026-06-21 09:53:59.674Z | 85.481° E |
| 5 mins | 2026-06-21 11:27:59.674Z | 273.156° WNW | 2026-06-21 11:29:59.674Z | 179.772° S | 39.788° | 2026-06-21 11:32:59.674Z | 126.072° 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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