STARLINK-34099, 63959
Orbit data source: Space-Track
STARLINK-34099, 63959 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.
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63959 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: 23 hours ago
TLE from 23 hours ago
0 STARLINK-34099
1 63959U 25099H 26093.54222861 .00019791 00000-0 72640-3 0 9996
2 63959 43.0100 36.1723 0001016 342.5085 17.5732 15.27598836 51138Epoch: 2026-04-03T13:00Z
TLE epoch observation values (Epoch: 2026-04-03T13:00:48.551Z)
Latitude
-0.00001°
Longitude
9.09513°
Altitude
482.105 km
Speed
7.627 km/s
True Right ascension
02h 24m 41s
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
18:03:16
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
485.633 km
Perigee altitude
484.239 km
Semi-major axis
6,863.073 km
Eccentricity
0.0001
Inclination
43.01°
RAAN
36.1723°
Arg. of periapsis
342.5085°
True anomaly
17.57672°
Mean anomaly
17.5732°
Eccentric anomaly
17.57496°
Mean motion
3.81738 °/min
Orbital period
94.31 mins
BSTAR
0.0007264
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Other satellites on launch #99 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-34099 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 | 2026-04-04 23:47:26.658Z | 234.731° WSW | 2026-04-04 23:49:26.658Z | 143.773° SSE | 42.944° | 2026-04-04 23:52:26.658Z | 75.498° E |
| 5 mins | 2026-04-05 01:26:26.658Z | 286.81° WNW | 2026-04-05 01:28:26.658Z | 358.689° N | 38.767° | 2026-04-05 01:31:26.658Z | 70.768° E |
| 5 mins | 2026-04-05 03:05:26.658Z | 294.583° NW | 2026-04-05 03:07:26.658Z | 355.083° N | 42.428° | 2026-04-05 03:10:26.658Z | 94.163° ESE |
| 5 mins | 2026-04-05 04:44:26.658Z | 264.854° W | 2026-04-05 04:46:26.658Z | 208.847° SW | 31.306° | 2026-04-05 04:49:26.658Z | 143.819° SSE |
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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