STARLINK-5685, 55477
Orbit data source: Space-Track
STARLINK-5685, 55477 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Thu, 02 Feb 2023 UTC via an FALCON 9 launch vehicle from the Air Force Eastern Test Range (AFETR). 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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55477 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
SpaceX/Seattle
Mission
Operational Commercial Communications
Bus & Motor
STARLINK, Unknown motor
Mass
305 kg wet, ~290 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 1 Pan, 10.1 m
Radar Cross Section
13.562 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 15 hours ago
TLE from 15 hours ago
0 STARLINK-5685
1 55477U 23015AE 26035.28950402 .00000058 00000-0 19366-4 0 9997
2 55477 43.0025 134.9896 0001016 262.1546 97.9181 15.02532929165878Epoch: 2026-02-04T06:56Z
TLE epoch observation values (Epoch: 2026-02-04T06:56:53.147Z)
Latitude
-0.00001°
Longitude
-103.69008°
Altitude
558.964 km
Speed
7.584 km/s
True Right ascension
08h 59m 57s
True Declination
0° 00' 00"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
00:05:18
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
561.718 km
Perigee altitude
560.307 km
Semi-major axis
6,939.15 km
Eccentricity
0.0001
Inclination
43.0025°
RAAN
134.9896°
Arg. of periapsis
262.1546°
True anomaly
97.92963°
Mean anomaly
97.9181°
Eccentric anomaly
97.92387°
Mean motion
3.75477 °/min
Orbital period
95.88 mins
BSTAR
0.000019366
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Other satellites on launch #15 in the year 2023 (2023-02-02 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.STARLINK-5685 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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2026-02-05 08:39:27.781Z | 174.289° S | 2026-02-05 08:41:27.781Z | 141.342° SSE | 16.757° | 2026-02-05 08:43:27.781Z | 108.681° ESE |
| 6 mins | 2026-02-05 10:19:27.781Z | 234.771° WSW | 2026-02-05 10:21:27.781Z | 177.249° S | 43.011° | 2026-02-05 10:25:27.781Z | 74.495° E |
| 7 mins | 2026-02-05 11:59:27.781Z | 279.519° WNW | 2026-02-05 12:02:27.781Z | 357.792° N | 40.074° | 2026-02-05 12:06:27.781Z | 74.322° E |
| 7 mins | 2026-02-05 13:40:27.781Z | 291.355° WNW | 2026-02-05 13:43:27.781Z | 24.622° NE | 43.265° | 2026-02-05 13:47:27.781Z | 97.644° ESE |
| 6 mins | 2026-02-05 15:21:27.781Z | 268.992° W | 2026-02-05 15:23:27.781Z | 227.557° WSW | 31.681° | 2026-02-05 15:27:27.781Z | 142.641° SSE |
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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