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: 8 hours ago
TLE from 8 hours ago
0 STARLINK-3181
1 51461U 22010F 26084.60127141 .00000742 00000-0 64695-4 0 9991
2 51461 53.2168 207.6918 0001455 86.2863 273.8295 15.08839003229225Epoch: 2026-03-25T14:25Z
TLE epoch observation values (Epoch: 2026-03-25T14:25:49.849Z)
Latitude
-0.00008°
Longitude
168.1718°
Altitude
540.577 km
Speed
7.593 km/s
True Right ascension
13h 50m 46s
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
04:02:10
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
540.998 km
Perigee altitude
538.985 km
Semi-major axis
6,918.128 km
Eccentricity
0.00015
Inclination
53.2168°
RAAN
207.6918°
Arg. of periapsis
86.2863°
True anomaly
273.81286°
Mean anomaly
273.8295°
Eccentric anomaly
273.82118°
Mean motion
3.7719 °/min
Orbital period
95.44 mins
BSTAR
0.000064695
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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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-03-26 09:39:01.228Z | 175.015° S | 2026-03-26 09:42:01.228Z | 126.085° SE | 18.931° | 2026-03-26 09:44:01.228Z | 90.331° ESE |
| 6 mins | 2026-03-26 11:18:01.228Z | 249.176° W | 2026-03-26 11:21:01.228Z | 327.589° NNW | 39.366° | 2026-03-26 11:24:01.228Z | 39.23° NE |
| 5 mins | 2026-03-26 16:20:01.228Z | 340.987° N | 2026-03-26 16:22:01.228Z | 21.079° NNE | 23.615° | 2026-03-26 16:25:01.228Z | 78.856° E |
| 6 mins | 2026-03-26 17:59:01.228Z | 298.517° NW | 2026-03-26 18:02:01.228Z | 207.857° SW | 39.788° | 2026-03-26 18:05:01.228Z | 148.003° 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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