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 + 2 Pan, 17.7 m
Radar Cross Section
36.964 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 12 hours ago
TLE from 12 hours ago
0 STARLINK-35977
1 66604U 25270S 26171.36692678 .00011349 00000-0 42109-3 0 9999
2 66604 42.9979 195.9114 0001003 270.3892 89.6845 15.27595861 33419Epoch: 2026-06-20T08:48Z
TLE epoch observation values (Epoch: 2026-06-20T08:48:22.473Z)
Latitude
-0.00001°
Longitude
155.23518°
Altitude
482.773 km
Speed
7.626 km/s
True Right ascension
13h 03m 38s
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
07:15:57
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
485.636 km
Perigee altitude
484.259 km
Semi-major axis
6,863.084 km
Eccentricity
0.0001
Inclination
42.9979°
RAAN
195.9114°
Arg. of periapsis
270.3892°
True anomaly
89.69599°
Mean anomaly
89.6845°
Eccentric anomaly
89.69025°
Mean motion
3.81737 °/min
Orbital period
94.31 mins
BSTAR
0.00042109
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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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-06-21 05:27:12.559Z | 229.603° WSW | 2026-06-21 05:29:12.559Z | 153.762° SSE | 41.471° | 2026-06-21 05:32:12.559Z | 77.304° E |
| 5 mins | 2026-06-21 07:06:12.559Z | 283.798° WNW | 2026-06-21 07:08:12.559Z | 353.862° N | 39.363° | 2026-06-21 07:11:12.559Z | 69.893° E |
| 5 mins | 2026-06-21 08:45:12.559Z | 294.834° NW | 2026-06-21 08:47:12.559Z | 350.515° N | 41.443° | 2026-06-21 08:50:12.559Z | 90.989° ESE |
| 5 mins | 2026-06-21 10:24:12.559Z | 268.719° W | 2026-06-21 10:26:12.559Z | 212.69° SW | 33.759° | 2026-06-21 10:29:12.559Z | 140.328° SSE |
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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