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: 9 hours ago
TLE from 9 hours ago
0 STARLINK-34099
1 63959U 25099H 26094.19610681 .00059595 00000-0 21589-2 0 9990
2 63959 43.0047 32.4811 0001589 283.6263 76.4411 15.27562877 51238Epoch: 2026-04-04T04:42Z
TLE epoch observation values (Epoch: 2026-04-04T04:42:23.628Z)
Latitude
-0.00006°
Longitude
129.36323°
Altitude
482.621 km
Speed
7.626 km/s
True Right ascension
02h 09m 55s
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
19:13:36
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
486.135 km
Perigee altitude
483.954 km
Semi-major axis
6,863.182 km
Eccentricity
0.00016
Inclination
43.0047°
RAAN
32.4811°
Arg. of periapsis
283.6263°
True anomaly
76.4588°
Mean anomaly
76.4411°
Eccentric anomaly
76.44995°
Mean motion
3.81729 °/min
Orbital period
94.31 mins
BSTAR
0.0021589
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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 23:47:34.394Z | 234.368° WSW | 2026-04-04 23:49:34.394Z | 136.648° SSE | 42.796° | 2026-04-04 23:52:34.394Z | 75.385° E |
| 5 mins | 2026-04-05 01:26:34.394Z | 287.408° WNW | 2026-04-05 01:28:34.394Z | 2.665° NNE | 38.727° | 2026-04-05 01:31:34.394Z | 71.063° E |
| 5 mins | 2026-04-05 03:05:34.394Z | 294.865° NW | 2026-04-05 03:07:34.394Z | 1.448° NNE | 42.589° | 2026-04-05 03:10:34.394Z | 94.396° ESE |
| 5 mins | 2026-04-05 04:44:34.394Z | 264.041° W | 2026-04-05 04:46:34.394Z | 206.525° SW | 31.266° | 2026-04-05 04:49:34.394Z | 143.484° 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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