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: 6 hours ago
TLE from 6 hours ago
0 STARLINK-1231
1 45212U 20012AL 26048.42971640 .00038106 00000-0 17881-2 0 9997
2 45212 53.0457 108.6981 0003378 1.7957 358.3049 15.19308190332145Epoch: 2026-02-17T10:18Z
TLE epoch observation values (Epoch: 2026-02-17T10:18:47.496Z)
Latitude
-0.00005°
Longitude
166.59033°
Altitude
506.488 km
Speed
7.613 km/s
True Right ascension
07h 14m 47s
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
18:50:10
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
510.53 km
Perigee altitude
505.878 km
Semi-major axis
6,886.341 km
Eccentricity
0.00034
Inclination
53.0457°
RAAN
108.6981°
Arg. of periapsis
1.7957°
True anomaly
358.30375°
Mean anomaly
358.3049°
Eccentric anomaly
358.30433°
Mean motion
3.79805 °/min
Orbital period
94.79 mins
BSTAR
0.0017881
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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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2026-02-18 05:25:04.854Z | 159.921° S | 2026-02-18 05:27:04.854Z | 122.658° SE | 16.966° | 2026-02-18 05:29:04.854Z | 88.847° E |
| 5 mins | 2026-02-18 07:03:04.854Z | 252.662° W | 2026-02-18 07:05:04.854Z | 319.263° NNW | 40.084° | 2026-02-18 07:08:04.854Z | 40.412° NE |
| 5 mins | 2026-02-18 12:02:04.854Z | 341.939° N | 2026-02-18 12:04:04.854Z | 22.81° NE | 22.099° | 2026-02-18 12:07:04.854Z | 78.443° E |
| 5 mins | 2026-02-18 13:41:04.854Z | 295.907° NW | 2026-02-18 13:43:04.854Z | 223.771° SW | 41.303° | 2026-02-18 13:46:04.854Z | 145.4° 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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