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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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, 10.1 m
Radar Cross Section
13.562 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 14 hours ago
TLE from 14 hours ago
0 STARLINK-1231
1 45212U 20012AL 26097.43503894 .00070037 00000-0 28589-2 0 9990
2 45212 53.0372 243.5117 0002878 225.8149 134.2611 15.23785804339607Epoch: 2026-04-07T10:26Z
TLE epoch observation values (Epoch: 2026-04-07T10:26:27.364Z)
Latitude
-0.00003°
Longitude
-108.81414°
Altitude
496.699 km
Speed
7.617 km/s
True Right ascension
16h 14m 02s
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
06:36:49
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
496.687 km
Perigee altitude
492.731 km
Semi-major axis
6,872.846 km
Eccentricity
0.00029
Inclination
53.0372°
RAAN
243.5117°
Arg. of periapsis
225.8149°
True anomaly
134.28471°
Mean anomaly
134.2611°
Eccentric anomaly
134.27291°
Mean motion
3.80924 °/min
Orbital period
94.51 mins
BSTAR
0.0028589
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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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2026-04-08 11:47:07.845Z | 204.351° SW | 2026-04-08 11:50:07.845Z | 143.166° SSE | 34.344° | 2026-04-08 11:53:07.845Z | 66.556° ENE |
| 4 mins | 2026-04-08 13:27:07.845Z | 290.729° WNW | 2026-04-08 13:29:07.845Z | 342.965° N | 24.885° | 2026-04-08 13:31:07.845Z | 23.608° NE |
| 5 mins | 2026-04-08 18:25:07.845Z | 336.433° NNW | 2026-04-08 18:27:07.845Z | 42.856° NE | 33.762° | 2026-04-08 18:30:07.845Z | 103.935° ESE |
| 5 mins | 2026-04-08 20:03:07.845Z | 272.221° WNW | 2026-04-08 20:05:07.845Z | 228.933° WSW | 22.361° | 2026-04-08 20:08:07.845Z | 175.137° S |
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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