STARLINK-5727, 55587
Orbit data source: Space-Track
STARLINK-5727, 55587 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Sun, 12 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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55587 intel report (Beta)
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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: 6 hours ago
TLE from 6 hours ago
0 STARLINK-5727
1 55587U 23020U 26264.27593720 .00000378 00000-0 23264-4 0 9991
2 55587 43.0050 340.6924 0001829 280.9038 79.1607 15.27575975198823Epoch: 2026-09-21T06:37Z
TLE epoch observation values (Epoch: 2026-09-21T06:37:20.974Z)
Latitude
-0.00006°
Longitude
-118.80315°
Altitude
482.601 km
Speed
7.626 km/s
True Right ascension
22h 42m 46s
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
06:00:04
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
486.261 km
Perigee altitude
483.75 km
Semi-major axis
6,863.142 km
Eccentricity
0.00018
Inclination
43.005°
RAAN
340.6924°
Arg. of periapsis
280.9038°
True anomaly
79.18129°
Mean anomaly
79.1607°
Eccentric anomaly
79.17099°
Mean motion
3.81732 °/min
Orbital period
94.31 mins
BSTAR
0.000023264
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Other satellites on launch #20 in the year 2023 (2023-02-12 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-5727 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 | 2026-09-21 13:19:52.295Z | 288.379° WNW | 2026-09-21 13:22:52.295Z | 112.631° SE | 87.329° | 2026-09-21 13:25:52.295Z | 109.474° ESE |
| 4 mins | 2026-09-21 14:59:52.295Z | 249.47° W | 2026-09-21 15:01:52.295Z | 204.44° SW | 22.071° | 2026-09-21 15:03:52.295Z | 168.012° S |
| 5 mins | 2026-09-22 07:55:52.295Z | 195.104° SSW | 2026-09-22 07:57:52.295Z | 152.272° SSE | 26.663° | 2026-09-22 08:00:52.295Z | 91.869° ESE |
| 5 mins | 2026-09-22 09:34:52.295Z | 258.074° W | 2026-09-22 09:36:52.295Z | 14.393° NNE | 79.452° | 2026-09-22 09:39:52.295Z | 70.339° E |
| 5 mins | 2026-09-22 11:13:52.295Z | 293.764° NW | 2026-09-22 11:15:52.295Z | 356.704° N | 50.821° | 2026-09-22 11:18:52.295Z | 74.7° E |
| 5 mins | 2026-09-22 12:52:52.295Z | 288.904° WNW | 2026-09-22 12:54:52.295Z | 295.16° NW | 79.207° | 2026-09-22 12:57:52.295Z | 108.592° ESE |
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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