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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Identifier
46172, 2020-057BH
Orbit
LEO
Last TLE update
8 hours ago
Origin
Manufacturer
SpaceX/Seattle
Mission
Operational Commercial Communications
Bus & Motor
STARLINK, Unknown motor
Mass
260 kg wet, ~248 kg dry
Launch date (UTC)
2020-08-18 (5 years ago)
Launch vehicle
FALCON 9
Launch site
Air Force Eastern Test Range (AFETR)
Object type
Payload
Rocket body
Debris
Shape & HBR
Box + 1 Pan, 8.86 m
Radar Cross Section
13.562 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 8 hours ago
0 STARLINK-1635
1 46172U 20057BH  25196.53042369 -.00000751  00000-0 -31517-4 0  9995
2 46172  53.0553 281.2675 0001136  86.4032 273.7087 15.06396668271259
Epoch: 2025-07-15T12:43Z
TLE epoch observation values (Epoch: 2025-07-15T12:43:48.606Z)
Latitude
-0.00003°
Longitude
156.69134°
Altitude
548.05 km
Speed
7.589 km/s
True Right ascension
18h 45m 04s
True Declination
0° 00' 00"
Sunlit
Object was in full shadow at epoch
Visualization orbit readout
Latitude
-11.00113°
Longitude
146.85289°
Altitude
550.33 km
Speed
7.587 km/s
Apparent Right ascension
19h 23m 19s
Apparent Declination
-26° 34' 54"
Sunlit
Object is in full shadow
Visualization observer readout
Local Sidereal Time
09:13:10
Azimuth
68.083° E
Elevation
-63.602°
Doppler factor
1
Orbital elements
Apogee altitude
548.279 km
Perigee altitude
546.706 km
Semi-major axis
6,925.629 km
Eccentricity
0.00011
Inclination
53.0553°
RAAN
281.2675°
Arg. of periapsis
86.4032°
True anomaly
Unknown
Mean anomaly
273.7087°
Eccentric anomaly
Unknown
Mean motion
3.76577 °/min
Orbital period
95.6 mins
BSTAR
-0.000031517
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STARLINK-1635 Visibility forecast

Observer location: undefined°, undefined°

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 mins2025-07-16 07:59:51.734Z211.523° SW2025-07-16 08:03:51.734Z110.596° ESE38.083°2025-07-16 08:06:51.734Z60.21° ENE
5 mins2025-07-16 09:40:51.734Z285.383° WNW2025-07-16 09:42:51.734Z324.914° NNW24.555°2025-07-16 09:45:51.734Z25.523° NE
6 mins2025-07-16 14:42:51.734Z327.333° NNW2025-07-16 14:44:51.734Z30.026° NE39.451°2025-07-16 14:48:51.734Z114.504° SE
4 mins2025-07-16 16:22:51.734Z257.514° W2025-07-16 16:23:51.734Z238.186° WSW19.17°2025-07-16 16:26:51.734Z186.84° SSW
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