STARLINK-35717, 66839
Orbit data source: Space-Track
STARLINK-35717, 66839 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Tue, 02 Dec 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.
Focus sentinelFocus sentinel
Request partner network tasking
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
66839 intel report (Beta)
Focus sentinelFocus sentinel
Edit Public Description
Focus sentinelFocus sentinel
Edit Sat Name
Focus sentinelFocus sentinel
Create New Watchlist
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: 17 hours ago
TLE from 17 hours ago
0 STARLINK-35717
1 66839U 25280U 26171.14941523 .00004074 00000-0 34891-3 0 9998
2 66839 70.0014 76.1087 0003021 268.5769 91.5043 14.98339671 31427Epoch: 2026-06-20T03:35Z
TLE epoch observation values (Epoch: 2026-06-20T03:35:09.475Z)
Latitude
-0.00014°
Longitude
113.95099°
Altitude
574.506 km
Speed
7.574 km/s
True Right ascension
05h 04m 26s
True Declination
0° 00' 01"
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
07:16:04
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
572.073 km
Perigee altitude
567.875 km
Semi-major axis
6,948.111 km
Eccentricity
0.0003
Inclination
70.0014°
RAAN
76.1087°
Arg. of periapsis
268.5769°
True anomaly
91.53891°
Mean anomaly
91.5043°
Eccentric anomaly
91.5216°
Mean motion
3.74751 °/min
Orbital period
96.06 mins
BSTAR
0.00034891
Loading maneuver chart data...
Computing Atmospheric mass density...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Other satellites on launch #280 in the year 2025 (2025-12-02 UTC)
Did you know?
You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.STARLINK-35717 Visibility forecast
Loading observer location...
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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2026-06-21 04:09:18.875Z | 352.444° N | 2026-06-21 04:13:18.875Z | 74.131° E | 31.477° | 2026-06-21 04:16:18.875Z | 127.049° SE |
| 4 mins | 2026-06-21 05:49:18.875Z | 283.395° WNW | 2026-06-21 05:51:18.875Z | 249.448° W | 16.037° | 2026-06-21 05:53:18.875Z | 219.416° SW |
| 5 mins | 2026-06-21 18:11:18.875Z | 143.45° SSE | 2026-06-21 18:13:18.875Z | 98.585° ESE | 24.027° | 2026-06-21 18:16:18.875Z | 50.482° ENE |
| 5 mins | 2026-06-21 19:49:18.875Z | 263.243° W | 2026-06-21 19:51:18.875Z | 304.553° NW | 23.123° | 2026-06-21 19:54:18.875Z | 356.005° N |
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 |
|---|
CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
Authenticating...
Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in descending order |
|---|