STARLINK-5639, 55365
Orbit data source: Space-Track
STARLINK-5639, 55365 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Thu, 26 Jan 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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55365 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: 1 day ago
TLE from 1 day ago
0 STARLINK-5639
1 55365U 23013AL 25348.55641777 -.00000806 00000-0 -44632-4 0 9996
2 55365 43.0042 55.8700 0001169 269.6833 90.3876 15.02528897158754Epoch: 2025-12-14T13:21Z
TLE epoch observation values (Epoch: 2025-12-14T13:21:14.495Z)
Latitude
0.00003°
Longitude
132.092°
Altitude
558.885 km
Speed
7.584 km/s
True Right ascension
03h 43m 28s
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
15:11:34
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
561.836 km
Perigee altitude
560.213 km
Semi-major axis
6,939.162 km
Eccentricity
0.00012
Inclination
43.0042°
RAAN
55.87°
Arg. of periapsis
269.6833°
True anomaly
90.401°
Mean anomaly
90.3876°
Eccentric anomaly
90.3943°
Mean motion
3.75476 °/min
Orbital period
95.88 mins
BSTAR
-0.000044632
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Other satellites on launch #13 in the year 2023 (2023-01-26 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-5639 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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2025-12-16 07:01:42.931Z | 198.295° SSW | 2025-12-16 07:04:42.931Z | 139.095° SSE | 25.052° | 2025-12-16 07:07:42.931Z | 89.555° E |
| 7 mins | 2025-12-16 08:41:42.931Z | 254.114° W | 2025-12-16 08:44:42.931Z | 292.814° NW | 44.732° | 2025-12-16 08:48:42.931Z | 71.552° E |
| 7 mins | 2025-12-16 10:22:42.931Z | 286.189° WNW | 2025-12-16 10:25:42.931Z | 358.298° N | 39.372° | 2025-12-16 10:29:42.931Z | 79.094° E |
| 7 mins | 2025-12-16 12:03:42.931Z | 288.094° WNW | 2025-12-16 12:06:42.931Z | 114.99° SE | 44.939° | 2025-12-16 12:10:42.931Z | 109.536° ESE |
| 5 mins | 2025-12-16 13:44:42.931Z | 258.695° W | 2025-12-16 13:46:42.931Z | 221.399° SW | 22.928° | 2025-12-16 13:49:42.931Z | 165.582° S |
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 descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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