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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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: 1 day ago
TLE from 1 day ago
0 STARLINK-1231
1 45212U 20012AL 26253.28703509 .00033948 00000-0 10380-2 0 9992
2 45212 53.0352 239.0911 0003964 23.9284 336.1900 15.33569721363443Epoch: 2026-09-10T06:53Z
TLE epoch observation values (Epoch: 2026-09-10T06:53:19.831Z)
Latitude
-0.00005°
Longitude
146.43152°
Altitude
463.578 km
Speed
7.637 km/s
True Right ascension
15h 56m 21s
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
00:12:39
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
468.162 km
Perigee altitude
462.736 km
Semi-major axis
6,843.586 km
Eccentricity
0.0004
Inclination
53.0352°
RAAN
239.0911°
Arg. of periapsis
23.9284°
True anomaly
336.17165°
Mean anomaly
336.19°
Eccentric anomaly
336.18083°
Mean motion
3.8337 °/min
Orbital period
93.9 mins
BSTAR
0.001038
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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 | 2026-09-11 08:23:43.467Z | 314.016° NW | 2026-09-11 08:27:43.467Z | 82.643° E | 61.365° | 2026-09-11 08:30:43.467Z | 121.958° SE |
| 5 mins | 2026-09-12 01:18:43.467Z | 211.099° SW | 2026-09-12 01:20:43.467Z | 99.402° ESE | 60.388° | 2026-09-12 01:23:43.467Z | 55.635° ENE |
| 4 mins | 2026-09-12 02:56:43.467Z | 299.868° NW | 2026-09-12 02:58:43.467Z | 344.758° N | 20.846° | 2026-09-12 03:00:43.467Z | 21.674° NNE |
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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