STARLINK-2135, 47408
Orbit data source: Space-Track
STARLINK-2135, 47408 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Wed, 20 Jan 2021 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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47408 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
SpaceX/Seattle
Mission
Operational Commercial Communications
Bus & Motor
STARLINK, Unknown motor
Mass
260 kg wet, ~248 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 1 Pan, 10.1 m
Radar Cross Section
13.562 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 2 days ago
TLE from 2 days ago
0 STARLINK-2135
1 47408U 21005BM 26171.44377898 -.00000141 00000-0 72170-5 0 9997
2 47408 53.1573 279.1576 0001014 83.7140 276.3977 15.31689759299123Epoch: 2026-06-20T10:39Z
TLE epoch observation values (Epoch: 2026-06-20T10:39:02.503Z)
Latitude
-0.00003°
Longitude
-149.26117°
Altitude
471.593 km
Speed
7.632 km/s
True Right ascension
18h 36m 37s
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
21:28:13
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
471.722 km
Perigee altitude
470.333 km
Semi-major axis
6,849.165 km
Eccentricity
0.0001
Inclination
53.1573°
RAAN
279.1576°
Arg. of periapsis
83.714°
True anomaly
276.38615°
Mean anomaly
276.3977°
Eccentric anomaly
276.39193°
Mean motion
3.82901 °/min
Orbital period
94.02 mins
BSTAR
0.000007217
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Other satellites on launch #5 in the year 2021 (2021-01-20 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-2135 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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2026-06-22 14:47:12.435Z | 346.852° N | 2026-06-22 14:49:12.435Z | 28.792° NE | 19.033° | 2026-06-22 14:51:12.435Z | 67.126° ENE |
| 5 mins | 2026-06-22 16:25:12.435Z | 302.185° NW | 2026-06-22 16:27:12.435Z | 213.264° SW | 43.615° | 2026-06-22 16:30:12.435Z | 138.825° SSE |
| 5 mins | 2026-06-23 09:19:12.435Z | 239.117° WSW | 2026-06-23 09:21:12.435Z | 274.279° WNW | 42.077° | 2026-06-23 09:24:12.435Z | 44.36° NE |
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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