STARLINK-34039, 63946
Orbit data source: Space-Track
STARLINK-34039, 63946 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Tue, 13 May 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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63946 intel report (Beta)
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Edit Public Description
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: 20 hours ago
TLE from 20 hours ago
0 STARLINK-34039
1 63946U 25098W 25348.79523539 .00009199 00000-0 77775-3 0 9991
2 63946 70.0002 128.6033 0003151 272.0148 88.0650 14.98326915 33838Epoch: 2025-12-14T19:05Z
TLE epoch observation values (Epoch: 2025-12-14T19:05:08.337Z)
Latitude
-0.00005°
Longitude
118.61552°
Altitude
574.416 km
Speed
7.574 km/s
True Right ascension
08h 34m 24s
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
13:18:47
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
572.203 km
Perigee altitude
567.824 km
Semi-major axis
6,948.151 km
Eccentricity
0.00032
Inclination
70.0002°
RAAN
128.6033°
Arg. of periapsis
272.0148°
True anomaly
88.10109°
Mean anomaly
88.065°
Eccentric anomaly
88.08304°
Mean motion
3.74748 °/min
Orbital period
96.06 mins
BSTAR
0.00077775
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Other satellites on launch #98 in the year 2025 (2025-05-13 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-34039 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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2025-12-15 19:39:13.578Z | 2.825° NNE | 2025-12-15 19:42:13.578Z | 52.441° ENE | 23.09° | 2025-12-15 19:45:13.578Z | 107.781° ESE |
| 5 mins | 2025-12-15 21:18:13.578Z | 300.923° NW | 2025-12-15 21:20:13.578Z | 264.489° W | 23.798° | 2025-12-15 21:23:13.578Z | 204.747° SW |
| 4 mins | 2025-12-16 09:41:13.578Z | 129.068° SE | 2025-12-16 09:43:13.578Z | 94.816° ESE | 15.987° | 2025-12-16 09:45:13.578Z | 65.327° ENE |
| 6 mins | 2025-12-16 11:18:13.578Z | 240.404° WSW | 2025-12-16 11:20:13.578Z | 281.625° WNW | 31.075° | 2025-12-16 11:24:13.578Z | 6.774° NNE |
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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