STARLINK-35972, 66638
Orbit data source: Space-Track
STARLINK-35972, 66638 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Sun, 23 Nov 2025 UTC via an FALCON 9 launch vehicle from the Air Force Western Test Range (AFWTR). 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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66638 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 V2MO, Unknown motor
Mass
575 kg wet, ~530 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 17.7 m
Radar Cross Section
36.964 m²
Expand to show TLE details & historyLast TLE update: 9 hours ago
TLE from 9 hours ago
0 STARLINK-35972
1 66638U 25271X 25355.25001157 .00063674 00000-0 15902-2 0 9992
2 66638 53.1597 146.6154 0001198 113.3752 268.8532 15.39589062 5613Epoch: 2025-12-21T06:00Z
TLE epoch observation values (Epoch: 2025-12-21T06:00:00.999Z)
Latitude
17.64152°
Longitude
-19.74831°
Altitude
447.647 km
Speed
7.646 km/s
True Right ascension
10h 41m 17s
True Declination
17° 32' 17"
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
13:58:17
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
448.399 km
Perigee altitude
446.763 km
Semi-major axis
6,825.718 km
Eccentricity
0.00012
Inclination
53.1597°
RAAN
146.6154°
Arg. of periapsis
113.3752°
True anomaly
268.83947°
Mean anomaly
268.8532°
Eccentric anomaly
268.84634°
Mean motion
3.84876 °/min
Orbital period
93.54 mins
BSTAR
0.0015902
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Other satellites on launch #271 in the year 2025 (2025-11-23 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-35972 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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2025-12-21 18:50:02.453Z | 339.39° N | 2025-12-21 18:52:02.453Z | 23.738° NE | 23.027° | 2025-12-21 18:55:02.453Z | 85.461° E |
| 4 mins | 2025-12-21 20:28:02.453Z | 280.882° WNW | 2025-12-21 20:30:02.453Z | 202.87° SW | 32.583° | 2025-12-21 20:32:02.453Z | 159.362° S |
| 4 mins | 2025-12-22 13:17:02.453Z | 261.777° W | 2025-12-22 13:19:02.453Z | 352.407° N | 35.874° | 2025-12-22 13:21:02.453Z | 35.937° NE |
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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