STARLINK-34021, 63940
Orbit data source: Space-Track
STARLINK-34021, 63940 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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63940 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: 19 hours ago
TLE from 19 hours ago
0 STARLINK-34021
1 63940U 25098Q 25348.81191584 .00002805 00000-0 24276-3 0 9994
2 63940 70.0006 128.6547 0003132 272.4390 87.6411 14.98334714 33834Epoch: 2025-12-14T19:29Z
TLE epoch observation values (Epoch: 2025-12-14T19:29:09.528Z)
Latitude
0.00002°
Longitude
112.64554°
Altitude
574.376 km
Speed
7.574 km/s
True Right ascension
08h 34m 37s
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
13:22:52
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
572.166 km
Perigee altitude
567.813 km
Semi-major axis
6,948.126 km
Eccentricity
0.00031
Inclination
70.0006°
RAAN
128.6547°
Arg. of periapsis
272.439°
True anomaly
87.67696°
Mean anomaly
87.6411°
Eccentric anomaly
87.65903°
Mean motion
3.7475 °/min
Orbital period
96.06 mins
BSTAR
0.00024276
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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-34021 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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2025-12-15 20:03:18.313Z | 349.351° N | 2025-12-15 20:07:18.313Z | 71.069° E | 34.557° | 2025-12-15 20:10:18.313Z | 130.489° SE |
| 5 mins | 2025-12-16 10:05:18.313Z | 149.328° SSE | 2025-12-16 10:07:18.313Z | 101.234° ESE | 26.761° | 2025-12-16 10:10:18.313Z | 48.935° ENE |
| 5 mins | 2025-12-16 11:43:18.313Z | 264.307° W | 2025-12-16 11:45:18.313Z | 301.482° NW | 21.04° | 2025-12-16 11:48:18.313Z | 352.665° N |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
Authenticating...
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