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: 4 hours ago
TLE from 4 hours ago
0 STARLINK-1635
1 46172U 20057BH 25345.25003471 .00147479 00000-0 35669-2 0 9998
2 46172 53.0539 322.3738 0011282 43.3205 167.2199 15.40063691 5854Epoch: 2025-12-11T06:00Z
TLE epoch observation values (Epoch: 2025-12-11T06:00:02.998Z)
Latitude
-24.17734°
Longitude
-8.22799°
Altitude
460.398 km
Speed
7.632 km/s
True Right ascension
10h 47m 58s
True Declination
-24° 02' 37"
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
08:46:05
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
453.895 km
Perigee altitude
438.497 km
Semi-major axis
6,824.333 km
Eccentricity
0.00113
Inclination
53.0539°
RAAN
322.3738°
Arg. of periapsis
43.3205°
True anomaly
167.24846°
Mean anomaly
167.2199°
Eccentric anomaly
167.23418°
Mean motion
3.84993 °/min
Orbital period
93.51 mins
BSTAR
0.0035669
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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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2025-12-12 01:32:00.269Z | 237.163° WSW | 2025-12-12 01:34:00.269Z | 271.997° WNW | 42.801° | 2025-12-12 01:37:00.269Z | 46.012° ENE |
| 5 mins | 2025-12-12 08:05:00.269Z | 312.071° NW | 2025-12-12 08:07:00.269Z | 119.517° SE | 43.155° | 2025-12-12 08:10:00.269Z | 129.372° SE |
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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Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in descending order |
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