STARLINK-33837, 63501
Orbit data source: Space-Track
STARLINK-33837, 63501 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Mon, 07 Apr 2025 UTC via an FALCON 9 launch vehicle from the Air Force Western Test Range (AFWTR). 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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63501 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: 14 hours ago
TLE from 14 hours ago
0 STARLINK-33837
1 63501U 25071J 26032.16366389 .00038475 00000-0 13038-2 0 9999
2 63501 53.1615 309.8685 0001028 80.2242 279.8875 15.30216053 47111Epoch: 2026-02-01T03:55Z
TLE epoch observation values (Epoch: 2026-02-01T03:55:40.560Z)
Latitude
0.00001°
Longitude
119.57227°
Altitude
475.946 km
Speed
7.629 km/s
True Right ascension
20h 39m 28s
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
19:59:42
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
476.128 km
Perigee altitude
474.719 km
Semi-major axis
6,853.56 km
Eccentricity
0.0001
Inclination
53.1615°
RAAN
309.8685°
Arg. of periapsis
80.2242°
True anomaly
279.87589°
Mean anomaly
279.8875°
Eccentric anomaly
279.8817°
Mean motion
3.82533 °/min
Orbital period
94.11 mins
BSTAR
0.0013038
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Other satellites on launch #71 in the year 2025 (2025-04-07 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-33837 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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-02-01 21:22:19.361Z | 240.526° WSW | 2026-02-01 21:24:19.361Z | 289.159° WNW | 42.74° | 2026-02-01 21:27:19.361Z | 44.285° NE |
| 4 mins | 2026-02-02 02:19:19.361Z | 344.663° N | 2026-02-02 02:21:19.361Z | 23.383° NE | 17.89° | 2026-02-02 02:23:19.361Z | 61.616° ENE |
| 5 mins | 2026-02-02 03:57:19.361Z | 308.495° NW | 2026-02-02 03:59:19.361Z | 294.188° NW | 43.995° | 2026-02-02 04:02:19.361Z | 133.117° 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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