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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https://www.satcat.com/sats-embedded/46173?theme=dark&initialShowStats=false

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Identifier

46173, 2020-057BJ

Orbit

LEO

Country

Related business

SpaceX (US)

Manufacturer

SpaceX/Seattle

Mission

Partially operational Commercial Communications

Bus & Motor

STARLINK, Unknown motor

Mass

260 kg wet, ~248 kg dry

Launch date (UTC)

2020-08-18 (6 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, 10.1 m

Radar Cross Section

13.562 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 4 hours ago

TLE from 4 hours ago

0 STARLINK-1640
1 46173U 20057BJ  26123.17278050  .00095707  00000-0  92273-3 0  9993
2 46173  53.0458  33.7638 0002272  60.1319 299.9921 15.65753611314819

Epoch: 2026-05-03T04:08Z

TLE epoch observation values (Epoch: 2026-05-03T04:08:48.235Z)

Latitude

-0.00003°

Longitude

110.48266°

Altitude

371.207 km

Speed

7.689 km/s

True Right ascension

02h 15m 03s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

15:46:28

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

372.885 km

Perigee altitude

369.818 km

Semi-major axis

6,749.488 km

Eccentricity

0.00023

Inclination

53.0458°

RAAN

33.7638°

Arg. of periapsis

60.1319°

True anomaly

299.96955°

Mean anomaly

299.9921°

Eccentric anomaly

299.98082°

Mean motion

3.91414 °/min

Orbital period

91.97 mins

BSTAR

0.00092273

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Other satellites on launch #57 in the year 2020 (2020-08-18 UTC)

STARLINK-1610, 46163 (Decayed)

SKYSAT C19, 46235 (Decayed)

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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.
4 mins	2026-05-03 21:12:59.347Z	262.055° W	2026-05-03 21:13:59.347Z	297.677° NW	35.034°	2026-05-03 21:16:59.347Z	38.83° NE
4 mins	2026-05-04 03:38:59.347Z	298.23° NW	2026-05-04 03:39:59.347Z	228.665° WSW	43.822°	2026-05-04 03:42:59.347Z	136.563° SSE

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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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Check out STARLINK-1640, 46173 on other resources

View STARLINK-1640, 46173 on NASA - NSSDCA Website

View STARLINK-1640, 46173 on Heavens-Above

View STARLINK-1640, 46173 on Keep Track

View STARLINK-1640, 46173 on Celestrak

View STARLINK-1640, 46173 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

STARLINK-1640, 46173

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 4 hours ago

TLE from 4 hours ago

TLE epoch observation values (Epoch: 2026-05-03T04:08:48.235Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #57 in the year 2020 (2020-08-18 UTC)

STARLINK-1640 Visibility forecast

Co-orbital & Co-planar RSOs

Check out STARLINK-1640, 46173 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 4 hours ago