STARLINK-5299, 55277

Orbit data source: Space-Track

STARLINK-5299, 55277 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Thu, 19 Jan 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/55277?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

55277, 2023-010J

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)

2023-01-19 (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: 2 days ago

TLE from 2 days ago

0 STARLINK-5299
1 55277U 23010J   26171.35660208  .00000085  00000-0  14962-4 0  9998
2 55277  69.9993 145.6263 0003798 265.3909  94.6816 14.98331194188162

Epoch: 2026-06-20T08:33Z

TLE epoch observation values (Epoch: 2026-06-20T08:33:30.419Z)

Latitude

-0.00007°

Longitude

108.67713°

Altitude

574.692 km

Speed

7.574 km/s

True Right ascension

09h 42m 30s

True Declination

0° 00' 00"

Sunlit

Object was in daylight 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

21:30:46

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

572.639 km

Perigee altitude

567.362 km

Semi-major axis

6,948.138 km

Eccentricity

0.00038

Inclination

69.9993°

RAAN

145.6263°

Arg. of periapsis

265.3909°

True anomaly

94.72497°

Mean anomaly

94.6816°

Eccentric anomaly

94.70329°

Mean motion

3.74749 °/min

Orbital period

96.06 mins

BSTAR

0.000014962

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Other satellites on launch #10 in the year 2023 (2023-01-19 UTC)

FALCON 9 DEB, 55322 (Decayed)

STARLINK-5311, 55288

FALCON 9 DEB, 55321 (Decayed)

STARLINK-5323, 55279 (Decayed)

STARLINK-5272, 55298 (Decayed)

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STARLINK-5299 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	2026-06-22 23:10:45.050Z	194.774° SSW	2026-06-22 23:13:45.050Z	146.996° SSE	42.955°	2026-06-22 23:17:45.050Z	29.21° NE
6 mins	2026-06-23 09:13:45.050Z	319.499° NNW	2026-06-23 09:16:45.050Z	236.323° WSW	37.736°	2026-06-23 09:19:45.050Z	177.022° S

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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-5299, 55277 on other resources

View STARLINK-5299, 55277 on NASA - NSSDCA Website

View STARLINK-5299, 55277 on Heavens-Above

View STARLINK-5299, 55277 on Keep Track

View STARLINK-5299, 55277 on Celestrak

View STARLINK-5299, 55277 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-5299, 55277

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 2 days ago

TLE from 2 days ago

TLE epoch observation values (Epoch: 2026-06-20T08:33:30.419Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #10 in the year 2023 (2023-01-19 UTC)

STARLINK-5299 Visibility forecast

Co-orbital & Co-planar RSOs

Check out STARLINK-5299, 55277 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 2 days ago