STARLINK-34139, 63975
Orbit data source: Space-Track
STARLINK-34139, 63975 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 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.
Focus sentinelFocus sentinel
Request partner network tasking
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
63975 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: 12 hours ago
TLE from 12 hours ago
0 STARLINK-34139
1 63975U 25099Z 26171.46922289 .00022129 00000-0 81097-3 0 9998
2 63975 43.0005 312.4315 0001634 266.0048 94.0617 15.27591631 63009Epoch: 2026-06-20T11:15Z
TLE epoch observation values (Epoch: 2026-06-20T11:15:40.857Z)
Latitude
-0.00002°
Longitude
-125.17216°
Altitude
482.869 km
Speed
7.626 km/s
True Right ascension
20h 49m 43s
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
10:20:21
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
486.081 km
Perigee altitude
483.838 km
Semi-major axis
6,863.096 km
Eccentricity
0.00016
Inclination
43.0005°
RAAN
312.4315°
Arg. of periapsis
266.0048°
True anomaly
94.08038°
Mean anomaly
94.0617°
Eccentric anomaly
94.07104°
Mean motion
3.81736 °/min
Orbital period
94.31 mins
BSTAR
0.00081097
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 #99 in the year 2025 (2025-05-13 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-34139 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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2026-06-21 12:34:06.214Z | 220.056° SW | 2026-06-21 12:37:06.214Z | 168.171° S | 31.414° | 2026-06-21 12:40:06.214Z | 87.683° E |
| 5 mins | 2026-06-21 14:14:06.214Z | 269.529° W | 2026-06-21 14:16:06.214Z | 320.142° NNW | 41.742° | 2026-06-21 14:19:06.214Z | 68.056° E |
| 6 mins | 2026-06-21 15:53:06.214Z | 292.869° NW | 2026-06-21 15:55:06.214Z | 335.074° NNW | 37.376° | 2026-06-21 15:59:06.214Z | 83.96° E |
| 6 mins | 2026-06-21 17:32:06.214Z | 281.963° WNW | 2026-06-21 17:35:06.214Z | 156.903° SSE | 40.211° | 2026-06-21 17:38:06.214Z | 121.222° SE |
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 |
|---|