STARLINK-5857, 55946

Orbit data source: Space-Track

STARLINK-5857, 55946 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.

Loading next visibility...

Iframe embed code

<iframe src="https://www.satcat.com/sats-embedded/55946?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/55946?theme=dark&initialShowStats=false

Optional Secondary NORAD IDs

Max 10 NORAD IDs; Separated by commas

Initial load time (optional)

ISO8601 Format

TLE date request (optional)

ISO8601 Format

Identifier

55946, 2023-037AJ

Orbit

LEO

Last TLE update

22 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 22 hours ago

0 STARLINK-5857
1 55946U 23037AJ  25196.63457969 -.00002024  00000-0 -16197-3 0  9993
2 55946  69.9998 162.0734 0003117 268.6605  91.4197 14.98318593128473

Epoch: 2025-07-15T15:13Z

TLE epoch observation values (Epoch: 2025-07-15T15:13:47.685Z)

Latitude

-0.00001°

Longitude

-0.10157°

Altitude

574.569 km

Speed

7.574 km/s

True Right ascension

10h 48m 17s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-40.37231°

Longitude

-164.46785°

Altitude

585.41 km

Speed

7.567 km/s

Apparent Right ascension

19h 23m 27s

Apparent Declination

-73° 55' 09"

Sunlit

Object is in full shadow

Visualization observer readout

Local Sidereal Time

01:41:11

Azimuth

200.899° SSW

Elevation

-39.27°

Doppler factor

Orbital elements

Apogee altitude

572.205 km

Perigee altitude

567.874 km

Semi-major axis

6,948.176 km

Eccentricity

0.00031

Inclination

69.9998°

RAAN

162.0734°

Arg. of periapsis

268.6605°

True anomaly

Unknown

Mean anomaly

91.4197°

Eccentric anomaly

Unknown

Mean motion

3.74746 °/min

Orbital period

96.07 mins

BSTAR

-0.00016197

Loading maneuver chart data...

Loading SW <> Apogee altitude chart data...

Loading historical data...

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

STARLINK-5857 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 23:26:10.034Z	231.502° WSW	2025-07-16 23:28:10.034Z	281.22° WNW	37.033°	2025-07-16 23:32:10.034Z	12.605° NNE
6 mins	2025-07-17 07:50:10.034Z	8.531° NNE	2025-07-17 07:52:10.034Z	46.298° ENE	25.127°	2025-07-17 07:56:10.034Z	118.45° SE
4 mins	2025-07-17 09:29:10.034Z	286.935° WNW	2025-07-17 09:31:10.034Z	245.562° WSW	21.278°	2025-07-17 09:33:10.034Z	210.933° SW

Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

Click to sort rows by RSO header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Type header in ascending order	Click to sort rows by Inclination Δ header in ascending order	Click to sort rows by RAAN Δ header in ascending order	Click to sort rows by Coplanar Angle header in ascending order	Click to sort rows by SMA Δ header in ascending order	Click to sort rows by Orbital period header in ascending order	Click to sort rows by <5km Md TCA header in ascending order

Authenticating...

Click to sort rows by Secondary header in ascending order	Click to sort rows by Secondary name header in ascending order	Click to sort rows by Country header in ascending order	Click to sort rows by Owner header in ascending order	Click to sort rows by Obj. Type header in ascending order	Click to sort rows by Miss dist. header in ascending order	Click to sort rows by Rel. speed header in ascending order	Click to sort rows by Apr. angle header in ascending order	Click to sort rows by TCA header in ascending order

Check out STARLINK-5857, 55946 on other resources

View STARLINK-5857, 55946 on NASA - NSSDCA Website

View STARLINK-5857, 55946 on Heavens-Above

View STARLINK-5857, 55946 on Keep Track

View STARLINK-5857, 55946 on Celestrak

View STARLINK-5857, 55946 on Gunter's Space Page

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