STARLINK-2166, 48558

Orbit data source: Space-Track

STARLINK-2166, 48558 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Sat, 15 May 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/48558?theme=dark&initialShowStats=false

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Identifier

48558, 2021-041F

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)

2021-05-15 (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: 2 days ago

TLE from 2 days ago

0 STARLINK-2166
1 48558U 21041F   26171.28875925  .00000921  00000-0  41421-4 0  9999
2 48558  53.1601   9.5356 0001035  81.3402 278.7717 15.31707460280130

Epoch: 2026-06-20T06:55Z

TLE epoch observation values (Epoch: 2026-06-20T06:55:48.799Z)

Latitude

0.00002°

Longitude

-2.92324°

Altitude

471.51 km

Speed

7.632 km/s

True Right ascension

00h 38m 08s

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

21:37:02

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

471.683 km

Perigee altitude

470.265 km

Semi-major axis

6,849.111 km

Eccentricity

0.0001

Inclination

53.1601°

RAAN

9.5356°

Arg. of periapsis

81.3402°

True anomaly

278.75998°

Mean anomaly

278.7717°

Eccentric anomaly

278.76584°

Mean motion

3.82906 °/min

Orbital period

94.02 mins

BSTAR

0.000041421

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Other satellites on launch #41 in the year 2021 (2021-05-15 UTC)

STARLINK-2215, 48567 (Decayed)

FALCON 9 DEB, 48837

STARLINK-2241, 48586

STARLINK-2173, 48560 (Decayed)

STARLINK-2214, 48566

STARLINK-2714, 48603

STARLINK-2167, 48559 (Decayed)

STARLINK-2256, 48598 (Decayed)

STARLINK-2274, 48599 (Decayed)

STARLINK-2249, 48592 (Decayed)

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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.

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STARLINK-2166 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.
6 mins	2026-06-22 15:30:00.689Z	234.81° WSW	2026-06-22 15:32:00.689Z	253.972° W	42.016°	2026-06-22 15:36:00.689Z	47.907° ENE
4 mins	2026-06-22 20:27:00.689Z	346.198° N	2026-06-22 20:29:00.689Z	24.56° NE	16.8°	2026-06-22 20:31:00.689Z	60.846° ENE
5 mins	2026-06-22 22:05:00.689Z	312.418° NW	2026-06-22 22:07:00.689Z	348.914° N	44.656°	2026-06-22 22:10:00.689Z	128.387° 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-2166, 48558 on other resources

View STARLINK-2166, 48558 on NASA - NSSDCA Website

View STARLINK-2166, 48558 on Heavens-Above

View STARLINK-2166, 48558 on Keep Track

View STARLINK-2166, 48558 on Celestrak

View STARLINK-2166, 48558 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-2166, 48558

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 2 days ago

TLE from 2 days ago

TLE epoch observation values (Epoch: 2026-06-20T06:55:48.799Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #41 in the year 2021 (2021-05-15 UTC)

STARLINK-2166 Visibility forecast

Co-orbital & Co-planar RSOs

Check out STARLINK-2166, 48558 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 2 days ago