STARLINK-5851, 55947

Orbit data source: Space-Track

STARLINK-5851, 55947 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/55947?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

55947, 2023-037AK

Orbit

LEO

Last TLE update

8 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 8 hours ago

0 STARLINK-5851
1 55947U 23037AK  25197.21888957 -.00000110  00000-0 -14552-5 0  9993
2 55947  69.9998 160.5002 0003346 264.7223  95.3555 14.98328281128906

Epoch: 2025-07-16T05:15Z

TLE epoch observation values (Epoch: 2025-07-16T05:15:12.058Z)

Latitude

0.00002°

Longitude

147.39776°

Altitude

574.703 km

Speed

7.574 km/s

True Right ascension

10h 42m 00s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

69.37931°

Longitude

-107.64286°

Altitude

585.716 km

Speed

7.573 km/s

Apparent Right ascension

15h 25m 02s

Apparent Declination

19° 48' 03"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

02:19:29

Azimuth

342.442° N

Elevation

-28.356°

Doppler factor

Orbital elements

Apogee altitude

572.334 km

Perigee altitude

567.685 km

Semi-major axis

6,948.146 km

Eccentricity

0.00033

Inclination

69.9998°

RAAN

160.5002°

Arg. of periapsis

264.7223°

True anomaly

Unknown

Mean anomaly

95.3555°

Eccentric anomaly

Unknown

Mean motion

3.74748 °/min

Orbital period

96.06 mins

BSTAR

-0.0000014552

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

STARLINK-5851 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.
7 mins	2025-07-16 23:00:22.022Z	201.92° SSW	2025-07-16 23:04:22.022Z	39.16° NE	44.442°	2025-07-16 23:07:22.022Z	25.28° NE
4 mins	2025-07-17 07:26:22.022Z	24.907° NE	2025-07-17 07:28:22.022Z	59.101° ENE	16.553°	2025-07-17 07:30:22.022Z	90.392° ESE
6 mins	2025-07-17 09:04:22.022Z	309.223° NW	2025-07-17 09:06:22.022Z	259.579° W	33.779°	2025-07-17 09:10:22.022Z	180.536° 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-5851, 55947 on other resources

View STARLINK-5851, 55947 on NASA - NSSDCA Website

View STARLINK-5851, 55947 on Heavens-Above

View STARLINK-5851, 55947 on Keep Track

View STARLINK-5851, 55947 on Celestrak

View STARLINK-5851, 55947 on Gunter's Space Page

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