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: 11 hours ago
TLE from 11 hours ago
0 STARLINK-1231
1 45212U 20012AL 26304.84402235 .00030433 00000-0 83067-3 0 9992
2 45212 53.0346 357.0532 0001867 76.8380 283.2830 15.37192228371362Epoch: 2026-10-31T20:15Z
TLE epoch observation values (Epoch: 2026-10-31T20:15:23.531Z)
Latitude
-0.00003°
Longitude
13.06121°
Altitude
455.013 km
Speed
7.641 km/s
True Right ascension
23h 48m 12s
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
02:35:18
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
455.97 km
Perigee altitude
453.419 km
Semi-major axis
6,832.831 km
Eccentricity
0.00019
Inclination
53.0346°
RAAN
357.0532°
Arg. of periapsis
76.838°
True anomaly
283.26218°
Mean anomaly
283.283°
Eccentric anomaly
283.27259°
Mean motion
3.84275 °/min
Orbital period
93.68 mins
BSTAR
0.00083067
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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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-11-01 07:24:27.823Z | 272.949° WNW | 2026-11-01 07:26:27.823Z | 318.136° NNW | 30.813° | 2026-11-01 07:29:27.823Z | 29.468° NE |
| 5 mins | 2026-11-01 12:20:27.823Z | 341.535° N | 2026-11-01 12:22:27.823Z | 36.623° NE | 30.624° | 2026-11-01 12:25:27.823Z | 94.558° ESE |
| 4 mins | 2026-11-01 13:58:27.823Z | 267.572° W | 2026-11-01 13:59:27.823Z | 237.731° WSW | 32.027° | 2026-11-01 14:02:27.823Z | 166.354° S |
| 4 mins | 2026-11-02 05:11:27.823Z | 170.061° S | 2026-11-02 05:13:27.823Z | 122.669° SE | 23.077° | 2026-11-02 05:15:27.823Z | 82.638° E |
| 5 mins | 2026-11-02 06:48:27.823Z | 267.015° W | 2026-11-02 06:50:27.823Z | 326.073° NNW | 39.513° | 2026-11-02 06:53:27.823Z | 35.368° NE |
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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