STARLINK-2555, 48291

Orbit data source: Space-Track

STARLINK-2555, 48291 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Thu, 29 Apr 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/48291?theme=dark&initialShowStats=false

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Identifier

48291, 2021-036R

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)

2021-04-29 (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: 20 hours ago

TLE from 20 hours ago

0 STARLINK-2555
1 48291U 21036R   26092.03075884  .00008152  00000-0  28712-3 0  9999
2 48291  53.1594 329.3999 0001326  96.2813 263.8339 15.30194078271943

Epoch: 2026-04-02T00:44Z

TLE epoch observation values (Epoch: 2026-04-02T00:44:17.563Z)

Latitude

-0.00002°

Longitude

127.94162°

Altitude

476.23 km

Speed

7.629 km/s

True Right ascension

21h 57m 35s

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

02:22:48

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

476.398 km

Perigee altitude

474.58 km

Semi-major axis

6,853.626 km

Eccentricity

0.00013

Inclination

53.1594°

RAAN

329.3999°

Arg. of periapsis

96.2813°

True anomaly

263.81879°

Mean anomaly

263.8339°

Eccentric anomaly

263.82635°

Mean motion

3.82527 °/min

Orbital period

94.11 mins

BSTAR

0.00028712

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Other satellites on launch #36 in the year 2021 (2021-04-29 UTC)

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STARLINK-2555 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	2026-04-03 00:44:28.120Z	326.664° NNW	2026-04-03 00:46:28.120Z	11.977° NNE	34.832°	2026-04-03 00:49:28.120Z	104.585° ESE
5 mins	2026-04-03 17:40:28.120Z	196.277° SSW	2026-04-03 17:42:28.120Z	131.593° SE	35.232°	2026-04-03 17:45:28.120Z	63.607° ENE
5 mins	2026-04-03 19:18:28.120Z	285.998° WNW	2026-04-03 19:20:28.120Z	332.45° NNW	23.763°	2026-04-03 19:23:28.120Z	29.746° 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-2555, 48291 on other resources

View STARLINK-2555, 48291 on NASA - NSSDCA Website

View STARLINK-2555, 48291 on Heavens-Above

View STARLINK-2555, 48291 on Keep Track

View STARLINK-2555, 48291 on Celestrak

View STARLINK-2555, 48291 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-2555, 48291

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 20 hours ago

TLE from 20 hours ago

TLE epoch observation values (Epoch: 2026-04-02T00:44:17.563Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #36 in the year 2021 (2021-04-29 UTC)

STARLINK-2555 Visibility forecast

Co-orbital & Co-planar RSOs

Check out STARLINK-2555, 48291 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 20 hours ago