STARLINK-5911, 55950

Orbit data source: Space-Track

STARLINK-5911, 55950 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/55950?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

55950, 2023-037AN

Orbit

LEO

Last TLE update

15 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 15 hours ago

0 STARLINK-5911
1 55950U 23037AN  25196.90974436  .00000310  00000-0  33804-4 0  9990
2 55950  70.0001 141.5503 0003378 261.3328  98.7448 14.98329889129002

Epoch: 2025-07-15T21:50Z

TLE epoch observation values (Epoch: 2025-07-15T21:50:01.912Z)

Latitude

-0.00008°

Longitude

-119.95519°

Altitude

574.838 km

Speed

7.573 km/s

True Right ascension

09h 26m 12s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-14.67268°

Longitude

63.87794°

Altitude

576.528 km

Speed

7.572 km/s

Apparent Right ascension

18h 43m 21s

Apparent Declination

-43° 37' 54"

Sunlit

Object is in full shadow

Visualization observer readout

Local Sidereal Time

01:45:26

Azimuth

239.857° WSW

Elevation

-36.25°

Doppler factor

Orbital elements

Apogee altitude

572.352 km

Perigee altitude

567.657 km

Semi-major axis

6,948.141 km

Eccentricity

0.00034

Inclination

70.0001°

RAAN

141.5503°

Arg. of periapsis

261.3328°

True anomaly

Unknown

Mean anomaly

98.7448°

Eccentric anomaly

Unknown

Mean motion

3.74749 °/min

Orbital period

96.06 mins

BSTAR

0.000033804

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

STARLINK-5911 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 22:01:25.072Z	223.396° SW	2025-07-16 22:03:25.072Z	265.561° W	39.22°	2025-07-16 22:07:25.072Z	15.036° NNE
5 mins	2025-07-17 06:26:25.072Z	23.492° NE	2025-07-17 06:28:25.072Z	67.496° ENE	22.656°	2025-07-17 06:31:25.072Z	113.358° SE
5 mins	2025-07-17 08:04:25.072Z	292.647° NW	2025-07-17 08:06:25.072Z	248.643° W	24.273°	2025-07-17 08:09:25.072Z	198.421° SSW

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-5911, 55950 on other resources

View STARLINK-5911, 55950 on NASA - NSSDCA Website

View STARLINK-5911, 55950 on Heavens-Above

View STARLINK-5911, 55950 on Keep Track

View STARLINK-5911, 55950 on Celestrak

View STARLINK-5911, 55950 on Gunter's Space Page

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