STARLINK-5506, 55651

Orbit data source: Space-Track

STARLINK-5506, 55651 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Fri, 17 Feb 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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https://www.satcat.com/sats-embedded/55651?theme=dark&initialShowStats=false

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Identifier

55651, 2023-021Z

Orbit

LEO

Country

Related business

SpaceX (US)

Manufacturer

SpaceX/Seattle

Mission

Operational Commercial Communications

Bus & Motor

STARLINK, Unknown motor

Mass

305 kg wet, ~290 kg dry

Launch date (UTC)

2023-02-17 (3 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, 10.1 m

Radar Cross Section

13.562 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 9 hours ago

TLE from 9 hours ago

0 STARLINK-5506
1 55651U 23021Z   26091.41735155  .00000772  00000-0  72530-4 0  9996
2 55651  69.9984 127.2408 0003352 267.8721  92.2054 14.98330361172199

Epoch: 2026-04-01T10:00Z

TLE epoch observation values (Epoch: 2026-04-01T10:00:59.173Z)

Latitude

-0.00007°

Longitude

147.21374°

Altitude

574.569 km

Speed

7.574 km/s

True Right ascension

08h 28m 57s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow 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

00:39:38

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

572.332 km

Perigee altitude

567.674 km

Semi-major axis

6,948.14 km

Eccentricity

0.00034

Inclination

69.9984°

RAAN

127.2408°

Arg. of periapsis

267.8721°

True anomaly

92.24378°

Mean anomaly

92.2054°

Eccentric anomaly

92.22459°

Mean motion

3.74749 °/min

Orbital period

96.06 mins

BSTAR

0.00007253

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Other satellites on launch #21 in the year 2023 (2023-02-17 UTC)

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STARLINK-5506 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.
7 mins	2026-04-02 03:46:31.328Z	202.558° SW	2026-04-02 03:49:31.328Z	198.621° SSW	43.699°	2026-04-02 03:53:31.328Z	24.802° NE
4 mins	2026-04-02 12:12:31.328Z	30.088° NE	2026-04-02 12:13:31.328Z	47.286° ENE	16.739°	2026-04-02 12:16:31.328Z	94.897° ESE
6 mins	2026-04-02 13:49:31.328Z	314.778° NW	2026-04-02 13:52:31.328Z	244.659° WSW	33.444°	2026-04-02 13:55:31.328Z	184.771° SSW

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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-5506, 55651 on other resources

View STARLINK-5506, 55651 on NASA - NSSDCA Website

View STARLINK-5506, 55651 on Heavens-Above

View STARLINK-5506, 55651 on Keep Track

View STARLINK-5506, 55651 on Celestrak

View STARLINK-5506, 55651 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-5506, 55651

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 9 hours ago

TLE from 9 hours ago

TLE epoch observation values (Epoch: 2026-04-01T10:00:59.173Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #21 in the year 2023 (2023-02-17 UTC)

STARLINK-5506 Visibility forecast

Co-orbital & Co-planar RSOs

Check out STARLINK-5506, 55651 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 9 hours ago