STARLINK-35977, 66604
Orbit data source: Space-Track
STARLINK-35977, 66604 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Sat, 22 Nov 2025 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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66604 intel report (Beta)
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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 + 1 Pan, 17.7 m
Radar Cross Section
41.120 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 14 hours ago
TLE from 14 hours ago
0 STARLINK-35977
1 66604U 25270S 26277.42373583 .00005587 00000-0 21237-3 0 9990
2 66604 43.0002 316.9590 0000977 275.7115 84.3625 15.27585543 49632Epoch: 2026-10-04T10:10Z
TLE epoch observation values (Epoch: 2026-10-04T10:10:10.775Z)
Latitude
-0.00004°
Longitude
151.29687°
Altitude
482.742 km
Speed
7.626 km/s
True Right ascension
21h 07m 50s
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
17:55:09
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
485.648 km
Perigee altitude
484.307 km
Semi-major axis
6,863.115 km
Eccentricity
0.0001
Inclination
43.0002°
RAAN
316.959°
Arg. of periapsis
275.7115°
True anomaly
84.37364°
Mean anomaly
84.3625°
Eccentric anomaly
84.36807°
Mean motion
3.81734 °/min
Orbital period
94.31 mins
BSTAR
0.00021237
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Other satellites on launch #270 in the year 2025 (2025-11-22 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-35977 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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2026-10-05 05:10:52.990Z | 184.552° SSW | 2026-10-05 05:12:52.990Z | 150.357° SSE | 18.062° | 2026-10-05 05:14:52.990Z | 111.355° ESE |
| 5 mins | 2026-10-05 06:49:52.990Z | 241.359° WSW | 2026-10-05 06:51:52.990Z | 131.416° SE | 76.485° | 2026-10-05 06:54:52.990Z | 73.619° E |
| 5 mins | 2026-10-05 08:28:52.990Z | 289.473° WNW | 2026-10-05 08:30:52.990Z | 358.371° N | 51.903° | 2026-10-05 08:33:52.990Z | 71.235° E |
| 5 mins | 2026-10-05 10:07:52.990Z | 293.904° NW | 2026-10-05 10:09:52.990Z | 350.011° N | 69.305° | 2026-10-05 10:12:52.990Z | 97.169° ESE |
| 5 mins | 2026-10-05 11:46:52.990Z | 262.298° W | 2026-10-05 11:48:52.990Z | 209.742° SW | 33.531° | 2026-10-05 11:51:52.990Z | 148.016° SSE |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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