STARLINK-1540, 46051

Orbit data source: Space-Track

STARLINK-1540, 46051 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Fri, 07 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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Iframe URL

https://www.satcat.com/sats-embedded/46051?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

46051, 2020-055AA

Orbit

LEO

Last TLE update

10 hours ago

Origin

SpaceX (US)

Manufacturer

SpaceX/Seattle

Mission

Operational Commercial Communications

Bus & Motor

STARLINK, Unknown motor

Mass

260 kg wet, ~248 kg dry

Launch date (UTC)

2020-08-07 (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, 4.4 m

Radar Cross Section

13.562 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 10 hours ago

0 STARLINK-1540
1 46051U 20055AA  25224.57489703  .00002224  00000-0  16822-3 0  9998
2 46051  53.0564 335.3714 0001186 100.5603 259.5519 15.06387488277527

Epoch: 2025-08-12T13:47Z

TLE epoch observation values (Epoch: 2025-08-12T13:47:51.103Z)

Latitude

-0.00007°

Longitude

167.14284°

Altitude

548.278 km

Speed

7.589 km/s

True Right ascension

22h 21m 29s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow at epoch

Visualization orbit readout

Latitude

49.84987°

Longitude

-77.17941°

Altitude

552.212 km

Speed

7.592 km/s

Apparent Right ascension

04h 04m 23s

Apparent Declination

8° 18' 37"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

14:15:47

Azimuth

326.256° NNW

Elevation

-35.633°

Doppler factor

Orbital elements

Apogee altitude

548.342 km

Perigee altitude

546.699 km

Semi-major axis

6,925.657 km

Eccentricity

0.00012

Inclination

53.0564°

RAAN

335.3714°

Arg. of periapsis

100.5603°

True anomaly

259.53854°

Mean anomaly

259.5519°

Eccentric anomaly

259.54522°

Mean motion

3.76575 °/min

Orbital period

95.6 mins

BSTAR

0.00016822

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Other satellites on launch #55 in the year 2020 (2020-08-07 UTC)

STARLINK-1561, 46056 (Decayed)

STARLINK-1562, 46057 (Decayed)

STARLINK-1574, 46062 (Decayed)

STARLINK-1577, 46063

STARLINK-1583, 46064

STARLINK-1540 Visibility forecast

Observer location: undefined°, undefined°
Set Observer location

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	2025-08-13 09:03:33.701Z	173.443° S	2025-08-13 09:05:33.701Z	139.312° SSE	20.713°	2025-08-13 09:08:33.701Z	83.47° E
6 mins	2025-08-13 10:42:33.701Z	254.539° W	2025-08-13 10:45:33.701Z	340.382° N	37.34°	2025-08-13 10:48:33.701Z	39.008° NE
6 mins	2025-08-13 15:44:33.701Z	335.653° NNW	2025-08-13 15:47:33.701Z	41.039° NE	25.447°	2025-08-13 15:50:33.701Z	88.639° E
6 mins	2025-08-13 17:24:33.701Z	289.366° WNW	2025-08-13 17:26:33.701Z	235.525° WSW	36.758°	2025-08-13 17:30:33.701Z	151.099° SSE

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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Authenticating...

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Check out STARLINK-1540, 46051 on other resources

View STARLINK-1540, 46051 on NASA - NSSDCA Website

View STARLINK-1540, 46051 on Heavens-Above

View STARLINK-1540, 46051 on Keep Track

View STARLINK-1540, 46051 on Celestrak

View STARLINK-1540, 46051 on Gunter's Space Page

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