STARLINK-34028, 63973
Orbit data source: Space-Track
STARLINK-34028, 63973 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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63973 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: 7 hours ago
TLE from 7 hours ago
0 STARLINK-34028
1 63973U 25099X 26098.11334499 .00024433 00000-0 89413-3 0 9996
2 63973 43.0029 6.8079 0001554 278.4686 81.5990 15.27591865 51876Epoch: 2026-04-08T02:43Z
TLE epoch observation values (Epoch: 2026-04-08T02:43:13.007Z)
Latitude
0.00003°
Longitude
129.62336°
Altitude
482.634 km
Speed
7.626 km/s
True Right ascension
00h 27m 13s
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
15:54:22
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
486.025 km
Perigee altitude
483.892 km
Semi-major axis
6,863.095 km
Eccentricity
0.00016
Inclination
43.0029°
RAAN
6.8079°
Arg. of periapsis
278.4686°
True anomaly
81.61662°
Mean anomaly
81.599°
Eccentric anomaly
81.60781°
Mean motion
3.81736 °/min
Orbital period
94.31 mins
BSTAR
0.00089413
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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-34028 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 | 2026-04-08 21:48:09.867Z | 234.699° WSW | 2026-04-08 21:50:09.867Z | 160.028° S | 42.861° | 2026-04-08 21:53:09.867Z | 76.036° E |
| 5 mins | 2026-04-08 23:27:09.867Z | 285.238° WNW | 2026-04-08 23:29:09.867Z | 349.762° N | 38.859° | 2026-04-08 23:32:09.867Z | 70.085° E |
| 5 mins | 2026-04-09 01:06:09.867Z | 293.948° NW | 2026-04-09 01:08:09.867Z | 342.507° N | 41.827° | 2026-04-09 01:11:09.867Z | 93.343° ESE |
| 5 mins | 2026-04-09 02:45:09.867Z | 266.855° W | 2026-04-09 02:47:09.867Z | 214.415° SW | 31.562° | 2026-04-09 02:50:09.867Z | 144.283° 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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