STARLINK-3181, 51461
Orbit data source: Space-Track
STARLINK-3181, 51461 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Thu, 03 Feb 2022 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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51461 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
297 kg wet, ~275 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-3181
1 51461U 22010F 26171.30951751 -.00000287 00000-0 29592-7 0 9992
2 51461 53.1588 178.3282 0001185 82.7052 277.4074 15.08830796242319Epoch: 2026-06-20T07:25Z
TLE epoch observation values (Epoch: 2026-06-20T07:25:42.312Z)
Latitude
-0.00005°
Longitude
158.37588°
Altitude
540.557 km
Speed
7.593 km/s
True Right ascension
11h 53m 18s
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
21:49:13
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
540.846 km
Perigee altitude
539.206 km
Semi-major axis
6,918.163 km
Eccentricity
0.00012
Inclination
53.1588°
RAAN
178.3282°
Arg. of periapsis
82.7052°
True anomaly
277.39393°
Mean anomaly
277.4074°
Eccentric anomaly
277.40067°
Mean motion
3.77187 °/min
Orbital period
95.44 mins
BSTAR
2.9592e-8
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Other satellites on launch #10 in the year 2022 (2022-02-03 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-3181 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 10:52:09.821Z | 269.291° W | 2026-06-22 10:54:09.821Z | 234.609° WSW | 18.128° | 2026-06-22 10:56:09.821Z | 198.438° SSW |
| 6 mins | 2026-06-23 02:23:09.821Z | 222.117° SW | 2026-06-23 02:26:09.821Z | 76.654° E | 42.495° | 2026-06-23 02:29:09.821Z | 52.896° ENE |
| 4 mins | 2026-06-23 04:04:09.821Z | 309.902° NW | 2026-06-23 04:05:09.821Z | 330.77° NNW | 20.674° | 2026-06-23 04:08:09.821Z | 24.7° NE |
| 4 mins | 2026-06-23 07:25:09.821Z | 351.777° N | 2026-06-23 07:27:09.821Z | 29.598° NE | 17.534° | 2026-06-23 07:29:09.821Z | 61.353° ENE |
| 6 mins | 2026-06-23 09:04:09.821Z | 316.616° NNW | 2026-06-23 09:06:09.821Z | 349.414° N | 42.406° | 2026-06-23 09:10:09.821Z | 123.711° 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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