STARLINK-2406, 47821

Orbit data source: Space-Track

STARLINK-2406, 47821 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/47821?theme=dark&initialShowStats=false

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Identifier

47821, 2021-018AL

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: 9 hours ago

TLE from 9 hours ago

0 STARLINK-2406
1 47821U 21018AL  26120.16667823  .00055137  00000-0  17763-2 0  9991
2 47821  53.1610   3.6110 0001071  81.1827 102.1419 15.31685328  5844

Epoch: 2026-04-30T04:00Z

TLE epoch observation values (Epoch: 2026-04-30T04:00:00.999Z)

Latitude

-2.7667°

Longitude

-92.44707°

Altitude

472.239 km

Speed

7.631 km/s

True Right ascension

12h 22m 41s

True Declination

-2° 44' 58"

Sunlit

Object was in full shadow 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

20:14:22

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

471.774 km

Perigee altitude

470.307 km

Semi-major axis

6,849.177 km

Eccentricity

0.00011

Inclination

53.161°

RAAN

3.611°

Arg. of periapsis

81.1827°

True anomaly

102.1539°

Mean anomaly

102.1419°

Eccentric anomaly

102.1479°

Mean motion

3.829 °/min

Orbital period

94.02 mins

BSTAR

0.0017763

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

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STARLINK-2406 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	2026-04-30 19:03:56.675Z	232.385° WSW	2026-04-30 19:05:56.675Z	24.351° NE	44.487°	2026-04-30 19:08:56.675Z	48.912° ENE
4 mins	2026-04-30 23:59:56.675Z	341.884° N	2026-05-01 00:01:56.675Z	17.352° NNE	16.244°	2026-05-01 00:03:56.675Z	55.16° ENE
6 mins	2026-05-01 01:37:56.675Z	314.034° NW	2026-05-01 01:39:56.675Z	334.774° NNW	41.981°	2026-05-01 01:43:56.675Z	126.429° SE

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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-2406, 47821 on other resources

View STARLINK-2406, 47821 on NASA - NSSDCA Website

View STARLINK-2406, 47821 on Heavens-Above

View STARLINK-2406, 47821 on Keep Track

View STARLINK-2406, 47821 on Celestrak

View STARLINK-2406, 47821 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-2406, 47821

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 9 hours ago

TLE from 9 hours ago

TLE epoch observation values (Epoch: 2026-04-30T04:00:00.999Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

STARLINK-2406 Visibility forecast

Co-orbital & Co-planar RSOs

Check out STARLINK-2406, 47821 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 9 hours ago