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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Identifier

46051, 2020-055AA

Orbit

LEO

Country

Related business

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 (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: 12 hours ago

TLE from 12 hours ago

0 STARLINK-1540
1 46051U 20055AA  26218.49939341 -.00002514  00000-0 -69299-4 0  9992
2 46051  53.1589 137.1044 0001167  84.3961 275.7173 15.31687513332038

Epoch: 2026-08-06T11:59Z

TLE epoch observation values (Epoch: 2026-08-06T11:59:07.590Z)

Latitude

-0.00007°

Longitude

2.28416°

Altitude

471.598 km

Speed

7.632 km/s

True Right ascension

09h 08m 25s

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

14:12:21

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

471.833 km

Perigee altitude

470.235 km

Semi-major axis

6,849.171 km

Eccentricity

0.00012

Inclination

53.1589°

RAAN

137.1044°

Arg. of periapsis

84.3961°

True anomaly

275.70399°

Mean anomaly

275.7173°

Eccentric anomaly

275.71065°

Mean motion

3.82901 °/min

Orbital period

94.02 mins

BSTAR

-0.000069299

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

STARLINK-1582, 46043

STARLINK-1564, 46058

STARLINK-1563, 46078 (Decayed)

STARLINK-1541, 46052 (Decayed)

STARLINK-1549, 46074

STARLINK-1569, 46039

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STARLINK-1540 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	2026-08-07 04:09:40.764Z	316.111° NNW	2026-08-07 04:11:40.764Z	74.067° E	44.041°	2026-08-07 04:14:40.764Z	125.715° SE
5 mins	2026-08-07 21:03:40.764Z	222.716° SW	2026-08-07 21:05:40.764Z	189.231° SSW	43.626°	2026-08-07 21:08:40.764Z	53.256° ENE
4 mins	2026-08-07 22:42:40.764Z	306.104° NW	2026-08-07 22:43:40.764Z	326.449° NNW	18.101°	2026-08-07 22:46:40.764Z	23.159° NE

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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-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.

STARLINK-1540, 46051

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 12 hours ago

TLE from 12 hours ago

TLE epoch observation values (Epoch: 2026-08-06T11:59:07.590Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

STARLINK-1540 Visibility forecast

Co-orbital & Co-planar RSOs

Check out STARLINK-1540, 46051 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 12 hours ago