STARLINK-3877, 52355
Orbit data source: Space-Track
STARLINK-3877, 52355 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Fri, 29 Apr 2022 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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52355 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
297 kg wet, ~275 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 1 Pan, 10.1 m
Radar Cross Section
11.087 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 3 days ago
TLE from 3 days ago
0 STARLINK-3877
1 52355U 22045AA 26170.96359488 -.00000019 00000-0 16911-4 0 9994
2 52355 53.1609 99.8854 0001360 102.6419 257.4725 15.08834804231225Epoch: 2026-06-19T23:07Z
TLE epoch observation values (Epoch: 2026-06-19T23:07:34.597Z)
Latitude
0.00001°
Longitude
-155.19378°
Altitude
540.855 km
Speed
7.593 km/s
True Right ascension
06h 39m 32s
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
23:20:18
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
540.954 km
Perigee altitude
539.072 km
Semi-major axis
6,918.15 km
Eccentricity
0.00014
Inclination
53.1609°
RAAN
99.8854°
Arg. of periapsis
102.6419°
True anomaly
257.45729°
Mean anomaly
257.4725°
Eccentric anomaly
257.46489°
Mean motion
3.77188 °/min
Orbital period
95.44 mins
BSTAR
0.000016911
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Other satellites on launch #45 in the year 2022 (2022-04-29 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-3877 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 | 2026-06-22 21:15:59.408Z | 229.624° WSW | 2026-06-22 21:18:59.408Z | 45.877° ENE | 43.881° | 2026-06-22 21:21:59.408Z | 49.749° ENE |
| 4 mins | 2026-06-22 22:56:59.408Z | 309.432° NW | 2026-06-22 22:57:59.408Z | 328.466° NNW | 19.062° | 2026-06-22 23:00:59.408Z | 22.284° NNE |
| 4 mins | 2026-06-23 02:17:59.408Z | 348.858° N | 2026-06-23 02:19:59.408Z | 27.433° NE | 18.931° | 2026-06-23 02:21:59.408Z | 61.955° ENE |
| 6 mins | 2026-06-23 03:56:59.408Z | 311.669° NW | 2026-06-23 03:59:59.408Z | 119.199° SE | 43.037° | 2026-06-23 04:02:59.408Z | 129.191° SE |
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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