STARLINK-33811, 63504
Orbit data source: Space-Track
STARLINK-33811, 63504 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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63504 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: 10 hours ago
TLE from 10 hours ago
0 STARLINK-33811
1 63504U 25071M 26103.03546531 .00007568 00000-0 26742-3 0 9992
2 63504 53.1603 340.7294 0001444 85.8891 274.2274 15.30196848 57969Epoch: 2026-04-13T00:51Z
TLE epoch observation values (Epoch: 2026-04-13T00:51:04.202Z)
Latitude
-0.0001°
Longitude
126.72997°
Altitude
476.051 km
Speed
7.629 km/s
True Right ascension
22h 42m 55s
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
17:08:39
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
476.471 km
Perigee altitude
474.491 km
Semi-major axis
6,853.618 km
Eccentricity
0.00014
Inclination
53.1603°
RAAN
340.7294°
Arg. of periapsis
85.8891°
True anomaly
274.2109°
Mean anomaly
274.2274°
Eccentric anomaly
274.21915°
Mean motion
3.82528 °/min
Orbital period
94.11 mins
BSTAR
0.00026742
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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-33811 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 | 2026-04-13 18:15:35.351Z | 215.72° SW | 2026-04-13 18:18:35.351Z | 160.45° S | 40.321° | 2026-04-13 18:21:35.351Z | 59.305° ENE |
| 4 mins | 2026-04-13 19:55:35.351Z | 301.441° NW | 2026-04-13 19:56:35.351Z | 323.383° NNW | 20.44° | 2026-04-13 19:59:35.351Z | 23.872° NE |
| 5 mins | 2026-04-14 00:51:35.351Z | 325.657° NNW | 2026-04-14 00:53:35.351Z | 17.476° NNE | 37.383° | 2026-04-14 00:56:35.351Z | 109.247° ESE |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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