STARLINK-1255, 45399
Orbit data source: Space-Track
STARLINK-1255, 45399 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Wed, 18 Mar 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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45399 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: 8 hours ago
TLE from 8 hours ago
0 STARLINK-1255
1 45399U 20019AR 26313.66668981 .00151279 00000-0 51041-3 0 9996
2 45399 53.0265 332.9649 0002513 72.6827 199.6663 15.89070666 5960Epoch: 2026-11-09T16:00Z
TLE epoch observation values (Epoch: 2026-11-09T16:00:01.999Z)
Latitude
-53.119°
Longitude
-42.00713°
Altitude
324.894 km
Speed
7.712 km/s
True Right ascension
16h 27m 21s
True Declination
-52° 56' 35"
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
20:32:48
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
306.852 km
Perigee altitude
303.493 km
Semi-major axis
6,683.309 km
Eccentricity
0.00025
Inclination
53.0265°
RAAN
332.9649°
Arg. of periapsis
72.6827°
True anomaly
199.65661°
Mean anomaly
199.6663°
Eccentric anomaly
199.66146°
Mean motion
3.97243 °/min
Orbital period
90.62 mins
BSTAR
0.00051041
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Other satellites on launch #19 in the year 2020 (2020-03-18 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-1255 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 | 2026-11-10 04:38:33.364Z | 249.156° W | 2026-11-10 04:40:33.364Z | 304.879° NW | 44.569° | 2026-11-10 04:42:33.364Z | 33.755° NE |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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