STARLINK-1640, 46173
Orbit data source: Space-Track
STARLINK-1640, 46173 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Tue, 18 Aug 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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46173 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: 10 hours ago
TLE from 10 hours ago
0 STARLINK-1640
1 46173U 20057BJ 26072.56920980 .00134125 00000-0 19539-2 0 9996
2 46173 53.0508 280.3604 0007559 158.1920 201.9413 15.54765272306912Epoch: 2026-03-13T13:39Z
TLE epoch observation values (Epoch: 2026-03-13T13:39:39.726Z)
Latitude
-0.00005°
Longitude
-95.75802°
Altitude
408.487 km
Speed
7.664 km/s
True Right ascension
18h 41m 26s
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
03:36:02
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
408.238 km
Perigee altitude
397.986 km
Semi-major axis
6,781.249 km
Eccentricity
0.00076
Inclination
53.0508°
RAAN
280.3604°
Arg. of periapsis
158.192°
True anomaly
201.90896°
Mean anomaly
201.9413°
Eccentric anomaly
201.92513°
Mean motion
3.88668 °/min
Orbital period
92.62 mins
BSTAR
0.0019539
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Other satellites on launch #57 in the year 2020 (2020-08-18 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-1640 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 | 2026-03-13 23:25:08.557Z | 312.859° NW | 2026-03-13 23:27:08.557Z | 339.339° N | 43.508° | 2026-03-13 23:30:08.557Z | 126.916° SE |
| 5 mins | 2026-03-14 16:04:08.557Z | 206.199° SW | 2026-03-14 16:06:08.557Z | 128.878° SE | 38.256° | 2026-03-14 16:09:08.557Z | 59.214° ENE |
| 4 mins | 2026-03-14 22:33:08.557Z | 342.533° N | 2026-03-14 22:34:08.557Z | 17.408° NNE | 31.68° | 2026-03-14 22:37:08.557Z | 103.516° ESE |
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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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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