STARLINK-1635, 46172
Orbit data source: Space-Track
STARLINK-1635, 46172 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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46172 intel report (Beta)
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Edit Public Description
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-1635
1 46172U 20057BH 25300.95832539 .00084239 00000-0 27115-2 0 9992
2 46172 53.0552 170.3484 0001504 112.4888 247.6271 15.31511645287627Epoch: 2025-10-27T22:59Z
TLE epoch observation values (Epoch: 2025-10-27T22:59:59.313Z)
Latitude
-0.00006°
Longitude
148.79852°
Altitude
472.583 km
Speed
7.631 km/s
True Right ascension
11h 21m 23s
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
03:58:12
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
472.605 km
Perigee altitude
470.545 km
Semi-major axis
6,849.712 km
Eccentricity
0.00015
Inclination
53.0552°
RAAN
170.3484°
Arg. of periapsis
112.4888°
True anomaly
247.61116°
Mean anomaly
247.6271°
Eccentric anomaly
247.61913°
Mean motion
3.82855 °/min
Orbital period
94.03 mins
BSTAR
0.0027115
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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-1635 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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2025-10-28 17:57:54.427Z | 219.916° SW | 2025-10-28 18:00:54.427Z | 155.281° SSE | 42.879° | 2025-10-28 18:03:54.427Z | 56.033° ENE |
| 4 mins | 2025-10-28 19:37:54.427Z | 307.14° NW | 2025-10-28 19:38:54.427Z | 329.258° NNW | 19.483° | 2025-10-28 19:41:54.427Z | 25.714° NE |
| 5 mins | 2025-10-29 00:33:54.427Z | 326.267° NNW | 2025-10-29 00:35:54.427Z | 56.712° ENE | 40.074° | 2025-10-29 00:38:54.427Z | 116.419° SE |
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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