STARLINK-3285, 50181
Orbit data source: Space-Track
STARLINK-3285, 50181 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Sat, 18 Dec 2021 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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50181 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
290 kg wet, ~270 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: 12 hours ago
TLE from 12 hours ago
0 STARLINK-3285
1 50181U 21125AB 26169.68667160 .00000497 00000-0 49301-4 0 9991
2 50181 53.1604 155.6331 0001006 90.5666 269.5441 15.08835353251852Epoch: 2026-06-18T16:28Z
TLE epoch observation values (Epoch: 2026-06-18T16:28:48.426Z)
Latitude
0.00001°
Longitude
1.5049°
Altitude
540.655 km
Speed
7.593 km/s
True Right ascension
10h 22m 31s
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
15:37:12
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
540.708 km
Perigee altitude
539.316 km
Semi-major axis
6,918.149 km
Eccentricity
0.0001
Inclination
53.1604°
RAAN
155.6331°
Arg. of periapsis
90.5666°
True anomaly
269.53257°
Mean anomaly
269.5441°
Eccentric anomaly
269.53834°
Mean motion
3.77188 °/min
Orbital period
95.44 mins
BSTAR
0.000049301
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Other satellites on launch #125 in the year 2021 (2021-12-18 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-3285 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 | 2026-06-19 07:14:56.919Z | 344.351° N | 2026-06-19 07:16:56.919Z | 23.942° NE | 21.453° | 2026-06-19 07:19:56.919Z | 75.673° E |
| 6 mins | 2026-06-19 08:53:56.919Z | 304.079° NW | 2026-06-19 08:56:56.919Z | 183.514° SSW | 42.91° | 2026-06-19 08:59:56.919Z | 139.312° SSE |
| 4 mins | 2026-06-20 00:26:56.919Z | 150.329° SSE | 2026-06-20 00:27:56.919Z | 130.047° SE | 19.334° | 2026-06-20 00:30:56.919Z | 80.586° E |
| 6 mins | 2026-06-20 02:04:56.919Z | 255.89° W | 2026-06-20 02:06:56.919Z | 315.185° NNW | 38.924° | 2026-06-20 02:10:56.919Z | 42.417° NE |
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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