STARLINK-2431, 47839

Orbit data source: Space-Track

STARLINK-2431, 47839 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Thu, 11 Mar 2021 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/47839?theme=dark&initialShowStats=false

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Identifier

47839, 2021-018BE

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)

2021-03-11 (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, 10.1 m

Radar Cross Section

13.562 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 15 hours ago

TLE from 15 hours ago

0 STARLINK-2431
1 47839U 21018BE  26225.22639130  .00000302  00000-0  21509-4 0  9992
2 47839  53.1598 208.5386 0001319  82.5434 277.5717 15.31705143301084

Epoch: 2026-08-13T05:26Z

TLE epoch observation values (Epoch: 2026-08-13T05:26:00.208Z)

Latitude

-0.00003°

Longitude

165.3687°

Altitude

471.506 km

Speed

7.632 km/s

True Right ascension

13h 54m 09s

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

11:24:04

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

471.885 km

Perigee altitude

470.078 km

Semi-major axis

6,849.118 km

Eccentricity

0.00013

Inclination

53.1598°

RAAN

208.5386°

Arg. of periapsis

82.5434°

True anomaly

277.55672°

Mean anomaly

277.5717°

Eccentric anomaly

277.56421°

Mean motion

3.82905 °/min

Orbital period

94.02 mins

BSTAR

0.000021509

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Other satellites on launch #18 in the year 2021 (2021-03-11 UTC)

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STARLINK-2431 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	2026-08-14 02:00:19.321Z	250.787° W	2026-08-14 02:02:19.321Z	344.98° N	40.57°	2026-08-14 02:05:19.321Z	43.07° NE
4 mins	2026-08-14 06:56:19.321Z	340.534° N	2026-08-14 06:58:19.321Z	17.988° NNE	18.789°	2026-08-14 07:00:19.321Z	60.181° ENE
6 mins	2026-08-14 08:34:19.321Z	304.535° NW	2026-08-14 08:36:19.321Z	275.078° WNW	42.086°	2026-08-14 08:40:19.321Z	137.29° 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-2431, 47839 on other resources

View STARLINK-2431, 47839 on NASA - NSSDCA Website

View STARLINK-2431, 47839 on Heavens-Above

View STARLINK-2431, 47839 on Keep Track

View STARLINK-2431, 47839 on Celestrak

View STARLINK-2431, 47839 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-2431, 47839

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 15 hours ago

TLE from 15 hours ago

TLE epoch observation values (Epoch: 2026-08-13T05:26:00.208Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #18 in the year 2021 (2021-03-11 UTC)

STARLINK-2431 Visibility forecast

Co-orbital & Co-planar RSOs

Check out STARLINK-2431, 47839 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 15 hours ago