STARLINK-3261, 50193
Orbit data source: Space-Track
STARLINK-3261, 50193 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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50193 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: 5 hours ago
TLE from 5 hours ago
0 STARLINK-3261
1 50193U 21125AP 26170.19080904 .00000087 00000-0 23581-4 0 9994
2 50193 53.1603 143.3574 0001219 95.1053 265.0077 15.08841760252108Epoch: 2026-06-19T04:34Z
TLE epoch observation values (Epoch: 2026-06-19T04:34:45.901Z)
Latitude
-0.00005°
Longitude
167.24278°
Altitude
540.703 km
Speed
7.593 km/s
True Right ascension
09h 33m 25s
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
20:17:31
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
540.835 km
Perigee altitude
539.149 km
Semi-major axis
6,918.129 km
Eccentricity
0.00012
Inclination
53.1603°
RAAN
143.3574°
Arg. of periapsis
95.1053°
True anomaly
264.99378°
Mean anomaly
265.0077°
Eccentric anomaly
265.00074°
Mean motion
3.7719 °/min
Orbital period
95.44 mins
BSTAR
0.000023581
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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-3261 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 23:48:29.865Z | 172.567° S | 2026-06-19 23:50:29.865Z | 139.199° SSE | 19.781° | 2026-06-19 23:53:29.865Z | 84.128° E |
| 6 mins | 2026-06-20 01:27:29.865Z | 254.268° W | 2026-06-20 01:30:29.865Z | 349.695° N | 37.054° | 2026-06-20 01:33:29.865Z | 40.129° NE |
| 5 mins | 2026-06-20 06:29:29.865Z | 345.705° N | 2026-06-20 06:31:29.865Z | 31.611° NE | 24.689° | 2026-06-20 06:34:29.865Z | 84.404° E |
| 6 mins | 2026-06-20 08:08:29.865Z | 293.424° NW | 2026-06-20 08:10:29.865Z | 246.453° WSW | 37.625° | 2026-06-20 08:14:29.865Z | 149.351° SSE |
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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