STARLINK-5900, 55948

Orbit data source: Space-Track

STARLINK-5900, 55948 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Fri, 17 Mar 2023 UTC via an FALCON 9 launch vehicle from the Air Force Western Test Range (AFWTR). 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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Iframe URL

https://www.satcat.com/sats-embedded/55948?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

55948, 2023-037AL

Orbit

LEO

Last TLE update

9 hours ago

Origin

SpaceX (US)

Manufacturer

SpaceX/Seattle

Mission

Operational Commercial Communications

Bus & Motor

STARLINK, Unknown motor

Mass

305 kg wet, ~290 kg dry

Launch date (UTC)

2023-03-17 (2 years ago)

Launch vehicle

FALCON 9

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 1 Pan, 9 m

Radar Cross Section

11.087 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 9 hours ago

0 STARLINK-5900
1 55948U 23037AL  25197.18095579  .00000520  00000-0  51333-4 0  9990
2 55948  70.0003 140.8925 0003369 263.3008  96.7768 14.98332976129383

Epoch: 2025-07-16T04:20Z

TLE epoch observation values (Epoch: 2025-07-16T04:20:34.58Z)

Latitude

0.00002°

Longitude

141.48361°

Altitude

574.748 km

Speed

7.574 km/s

True Right ascension

09h 23m 34s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-5.81193°

Longitude

-37.33303°

Altitude

574.868 km

Speed

7.574 km/s

Apparent Right ascension

18h 38m 29s

Apparent Declination

-35° 54' 59"

Sunlit

Object is in full shadow

Visualization observer readout

Local Sidereal Time

01:48:57

Azimuth

249.236° W

Elevation

-34.358°

Doppler factor

Orbital elements

Apogee altitude

572.336 km

Perigee altitude

567.654 km

Semi-major axis

6,948.132 km

Eccentricity

0.00034

Inclination

70.0003°

RAAN

140.8925°

Arg. of periapsis

263.3008°

True anomaly

Unknown

Mean anomaly

96.7768°

Eccentric anomaly

Unknown

Mean motion

3.7475 °/min

Orbital period

96.06 mins

BSTAR

0.000051333

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Other satellites on launch #37 in the year 2023 (2023-03-17 UTC)

STARLINK-5900 Visibility forecast

Observer location: undefined°, undefined°

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	2025-07-16 22:07:54.868Z	233.517° WSW	2025-07-16 22:09:54.868Z	291.435° WNW	37.466°	2025-07-16 22:13:54.868Z	13.413° NNE
5 mins	2025-07-17 06:31:54.868Z	11.047° NNE	2025-07-17 06:33:54.868Z	51.615° ENE	25.44°	2025-07-17 06:36:54.868Z	111.408° ESE
4 mins	2025-07-17 08:10:54.868Z	283.54° WNW	2025-07-17 08:11:54.868Z	263.516° W	21.282°	2025-07-17 08:14:54.868Z	208.596° SW

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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Authenticating...

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Check out STARLINK-5900, 55948 on other resources

View STARLINK-5900, 55948 on NASA - NSSDCA Website

View STARLINK-5900, 55948 on Heavens-Above

View STARLINK-5900, 55948 on Keep Track

View STARLINK-5900, 55948 on Celestrak

View STARLINK-5900, 55948 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.