STARLINK-2156, 47742

Orbit data source: Space-Track

STARLINK-2156, 47742 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Thu, 04 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/47742?theme=dark&initialShowStats=false

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Identifier

47742, 2021-017W

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)

2021-03-04 (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-2156
1 47742U 21017W   26170.96560243 -.00004597  00000-0 -13649-3 0  9999
2 47742  53.1599  78.3569 0001388 123.4575 236.6559 15.31692736293703

Epoch: 2026-06-19T23:10Z

TLE epoch observation values (Epoch: 2026-06-19T23:10:28.049Z)

Latitude

-0.00007°

Longitude

-177.44703°

Altitude

472.185 km

Speed

7.631 km/s

True Right ascension

05h 13m 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

21:38:48

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

471.969 km

Perigee altitude

470.068 km

Semi-major axis

6,849.155 km

Eccentricity

0.00014

Inclination

53.1599°

RAAN

78.3569°

Arg. of periapsis

123.4575°

True anomaly

236.64261°

Mean anomaly

236.6559°

Eccentric anomaly

236.64926°

Mean motion

3.82902 °/min

Orbital period

94.02 mins

BSTAR

-0.00013649

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Other satellites on launch #17 in the year 2021 (2021-03-04 UTC)

STARLINK-2172, 47755 (Decayed)

STARLINK-2142, 47732 (Decayed)

STARLINK-2154, 47741 (Decayed)

STARLINK-2160, 47746

STARLINK-2211, 47778

STARLINK-2192, 47769 (Decayed)

STARLINK-2182, 47764 (Decayed)

STARLINK-2141, 47731

STARLINK-2181, 47763 (Decayed)

STARLINK-2125, 47725 (Decayed)

STARLINK-2198, 47775 (Decayed)

STARLINK-2152, 47740 (Decayed)

FALCON 9 DEB, 47784 (Decayed)

STARLINK-2129, 47727 (Decayed)

STARLINK-2210, 47777 (Decayed)

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STARLINK-2156 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	2026-06-22 18:39:46.100Z	173.173° S	2026-06-22 18:41:46.100Z	139.45° SSE	17.46°	2026-06-22 18:44:46.100Z	83.639° E
5 mins	2026-06-22 20:17:46.100Z	257.738° W	2026-06-22 20:19:46.100Z	322.869° NNW	37.248°	2026-06-22 20:22:46.100Z	38.462° NE
4 mins	2026-06-23 01:14:46.100Z	349.914° N	2026-06-23 01:16:46.100Z	36.575° NE	20.591°	2026-06-23 01:18:46.100Z	74.156° E
5 mins	2026-06-23 02:52:46.100Z	291.97° WNW	2026-06-23 02:54:46.100Z	194.574° SSW	39.221°	2026-06-23 02:57:46.100Z	144.901° 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-2156, 47742 on other resources

View STARLINK-2156, 47742 on NASA - NSSDCA Website

View STARLINK-2156, 47742 on Heavens-Above

View STARLINK-2156, 47742 on Keep Track

View STARLINK-2156, 47742 on Celestrak

View STARLINK-2156, 47742 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-2156, 47742

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: 2026-06-19T23:10:28.049Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #17 in the year 2021 (2021-03-04 UTC)

STARLINK-2156 Visibility forecast

Co-orbital & Co-planar RSOs

Check out STARLINK-2156, 47742 on other resources

Documentation

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