STARLINK-35837, 66840
Orbit data source: Space-Track
STARLINK-35837, 66840 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.
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66840 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: 10 hours ago
TLE from 10 hours ago
0 STARLINK-35837
1 66840U 25280V 26171.43315146 .00001886 00000-0 16577-3 0 9997
2 66840 70.0016 75.4972 0002338 272.6683 87.4208 14.98338773 31460Epoch: 2026-06-20T10:23Z
TLE epoch observation values (Epoch: 2026-06-20T10:23:44.286Z)
Latitude
-0.00004°
Longitude
10.91481°
Altitude
574.38 km
Speed
7.574 km/s
True Right ascension
05h 01m 59s
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
07:12:56
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
571.601 km
Perigee altitude
568.352 km
Semi-major axis
6,948.114 km
Eccentricity
0.00023
Inclination
70.0016°
RAAN
75.4972°
Arg. of periapsis
272.6683°
True anomaly
87.44756°
Mean anomaly
87.4208°
Eccentric anomaly
87.43418°
Mean motion
3.74751 °/min
Orbital period
96.06 mins
BSTAR
0.00016577
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Other satellites on launch #280 in the year 2025 (2025-12-02 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-35837 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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2026-06-21 04:34:11.502Z | 341.098° N | 2026-06-21 04:37:11.502Z | 22.377° NNE | 42.479° | 2026-06-21 04:41:11.502Z | 148.888° SSE |
| 6 mins | 2026-06-21 18:35:11.502Z | 174.86° S | 2026-06-21 18:37:11.502Z | 123.877° SE | 36.989° | 2026-06-21 18:41:11.502Z | 36.315° 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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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 |
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