STARLINK-33531, 63399
Orbit data source: Space-Track
STARLINK-33531, 63399 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Mon, 31 Mar 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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63399 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: 1 day ago
TLE from 1 day ago
0 STARLINK-33531
1 63399U 25065A 26170.51446136 .00011765 00000-0 43625-3 0 9997
2 63399 43.0004 251.9537 0001375 271.4499 88.6195 15.27589667 68419Epoch: 2026-06-19T12:20Z
TLE epoch observation values (Epoch: 2026-06-19T12:20:49.461Z)
Latitude
-0.00003°
Longitude
159.00524°
Altitude
482.773 km
Speed
7.626 km/s
True Right ascension
16h 47m 48s
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
07:23:36
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
485.909 km
Perigee altitude
484.022 km
Semi-major axis
6,863.102 km
Eccentricity
0.00014
Inclination
43.0004°
RAAN
251.9537°
Arg. of periapsis
271.4499°
True anomaly
88.63525°
Mean anomaly
88.6195°
Eccentric anomaly
88.62738°
Mean motion
3.81735 °/min
Orbital period
94.31 mins
BSTAR
0.00043625
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Other satellites on launch #65 in the year 2025 (2025-03-31 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-33531 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 08:29:50.372Z | 227.018° WSW | 2026-06-21 08:32:50.372Z | 171.228° S | 36.149° | 2026-06-21 08:35:50.372Z | 83.057° E |
| 5 mins | 2026-06-21 10:09:50.372Z | 275.565° WNW | 2026-06-21 10:11:50.372Z | 329.317° NNW | 40.349° | 2026-06-21 10:14:50.372Z | 67.905° E |
| 6 mins | 2026-06-21 11:48:50.372Z | 293.609° NW | 2026-06-21 11:50:50.372Z | 334.825° NNW | 38.404° | 2026-06-21 11:54:50.372Z | 87.974° E |
| 6 mins | 2026-06-21 13:27:50.372Z | 277.438° WNW | 2026-06-21 13:29:50.372Z | 234.472° WSW | 37.643° | 2026-06-21 13:33:50.372Z | 128.032° 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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