STARLINK-1231, 45212
Orbit data source: Space-Track
STARLINK-1231, 45212 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Mon, 17 Feb 2020 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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45212 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
SpaceX/Seattle
Mission
Partially 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, 4.4 m
Radar Cross Section
13.562 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 1 day ago
TLE from 1 day ago
0 STARLINK-1231
1 45212U 20012AL 25257.25865079 .00015268 00000-0 98374-3 0 9998
2 45212 53.0528 98.2961 0003850 141.5696 218.5569 15.08516371308488Epoch: 2025-09-14T06:12Z
TLE epoch observation values (Epoch: 2025-09-14T06:12:27.428Z)
Latitude
0.00002°
Longitude
11.7016°
Altitude
543.696 km
Speed
7.59 km/s
True Right ascension
06h 33m 11s
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
00:54:08
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
543.668 km
Perigee altitude
538.34 km
Semi-major axis
6,919.141 km
Eccentricity
0.00039
Inclination
53.0528°
RAAN
98.2961°
Arg. of periapsis
141.5696°
True anomaly
218.52941°
Mean anomaly
218.5569°
Eccentric anomaly
218.54316°
Mean motion
3.77107 °/min
Orbital period
95.46 mins
BSTAR
0.00098374
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Other satellites on launch #12 in the year 2020 (2020-02-17 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-1231 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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2025-09-15 15:46:24.592Z | 217.437° SW | 2025-09-15 15:49:24.592Z | 144.83° SSE | 42.698° | 2025-09-15 15:53:24.592Z | 55.018° ENE |
| 5 mins | 2025-09-15 17:27:24.592Z | 298.409° NW | 2025-09-15 17:29:24.592Z | 341.496° N | 22.213° | 2025-09-15 17:32:24.592Z | 30.287° NE |
| 7 mins | 2025-09-15 22:27:24.592Z | 317.071° NNW | 2025-09-15 22:30:24.592Z | 37.531° NE | 42.435° | 2025-09-15 22:34:24.592Z | 120.609° 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 ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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