STARLINK-35704, 66221
Orbit data source: Space-Track
STARLINK-35704, 66221 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Tue, 28 Oct 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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66221 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: 1 day ago
TLE from 1 day ago
0 STARLINK-35704
1 66221U 25244R 26170.87509218 .00013780 00000-0 47641-3 0 9994
2 66221 53.1584 115.3371 0001285 95.2106 264.9041 15.30206739 37300Epoch: 2026-06-19T21:00Z
TLE epoch observation values (Epoch: 2026-06-19T21:00:07.964Z)
Latitude
-0.00005°
Longitude
-107.79392°
Altitude
476.173 km
Speed
7.629 km/s
True Right ascension
07h 41m 20s
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
08:33:43
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
476.332 km
Perigee altitude
474.571 km
Semi-major axis
6,853.589 km
Eccentricity
0.00013
Inclination
53.1584°
RAAN
115.3371°
Arg. of periapsis
95.2106°
True anomaly
264.88943°
Mean anomaly
264.9041°
Eccentric anomaly
264.89677°
Mean motion
3.82531 °/min
Orbital period
94.11 mins
BSTAR
0.00047641
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Other satellites on launch #244 in the year 2025 (2025-10-28 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-35704 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 | 2026-06-20 22:14:45.752Z | 191.641° SSW | 2026-06-20 22:17:45.752Z | 114.782° SE | 28.049° | 2026-06-20 22:19:45.752Z | 73.869° E |
| 4 mins | 2026-06-20 23:53:45.752Z | 288.198° WNW | 2026-06-20 23:54:45.752Z | 314.98° NW | 26.782° | 2026-06-20 23:57:45.752Z | 27.634° NE |
| 4 mins | 2026-06-21 04:50:45.752Z | 350.102° N | 2026-06-21 04:51:45.752Z | 18.835° NNE | 28.098° | 2026-06-21 04:54:45.752Z | 91.801° ESE |
| 5 mins | 2026-06-21 06:27:45.752Z | 281.343° WNW | 2026-06-21 06:29:45.752Z | 235.128° WSW | 27.18° | 2026-06-21 06:32:45.752Z | 168.366° 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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