STARLINK-3977, 52640
Orbit data source: Space-Track
STARLINK-3977, 52640 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Sat, 14 May 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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52640 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
13.562 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 2 days ago
TLE from 2 days ago
0 STARLINK-3977
1 52640U 22052AU 26171.35553737 .00000668 00000-0 60088-4 0 9999
2 52640 53.1607 158.1499 0001399 78.0176 282.0972 15.08837134226627Epoch: 2026-06-20T08:31Z
TLE epoch observation values (Epoch: 2026-06-20T08:31:58.428Z)
Latitude
-0.00005°
Longitude
121.58507°
Altitude
540.441 km
Speed
7.593 km/s
True Right ascension
10h 32m 35s
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
21:26:10
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
540.974 km
Perigee altitude
539.038 km
Semi-major axis
6,918.143 km
Eccentricity
0.00014
Inclination
53.1607°
RAAN
158.1499°
Arg. of periapsis
78.0176°
True anomaly
282.08152°
Mean anomaly
282.0972°
Eccentric anomaly
282.08936°
Mean motion
3.77189 °/min
Orbital period
95.44 mins
BSTAR
0.000060088
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Other satellites on launch #52 in the year 2022 (2022-05-14 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-3977 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 | 2026-06-23 00:16:10.017Z | 189.273° SSW | 2026-06-23 00:19:10.017Z | 138.786° SSE | 25.463° | 2026-06-23 00:22:10.017Z | 77.126° E |
| 6 mins | 2026-06-23 01:56:10.017Z | 265.138° W | 2026-06-23 01:59:10.017Z | 347.141° N | 32.122° | 2026-06-23 02:02:10.017Z | 36.887° NE |
| 5 mins | 2026-06-23 06:58:10.017Z | 343.295° N | 2026-06-23 07:00:10.017Z | 35.525° NE | 28.497° | 2026-06-23 07:03:10.017Z | 91.95° ESE |
| 5 mins | 2026-06-23 08:37:10.017Z | 283.674° WNW | 2026-06-23 08:39:10.017Z | 235.181° WSW | 31.787° | 2026-06-23 08:42:10.017Z | 164.735° 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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