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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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: 17 hours ago
TLE from 17 hours ago
0 STARLINK-34021
1 63940U 25098Q 26096.70302901 .00008598 00000-0 72737-3 0 9990
2 63940 70.0018 204.0151 0003440 272.2882 87.7884 14.98336071 50745Epoch: 2026-04-06T16:52Z
TLE epoch observation values (Epoch: 2026-04-06T16:52:21.706Z)
Latitude
0.00006°
Longitude
115.93438°
Altitude
574.37 km
Speed
7.574 km/s
True Right ascension
13h 36m 03s
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
16:14:11
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
572.375 km
Perigee altitude
567.595 km
Semi-major axis
6,948.122 km
Eccentricity
0.00034
Inclination
70.0018°
RAAN
204.0151°
Arg. of periapsis
272.2882°
True anomaly
87.82779°
Mean anomaly
87.7884°
Eccentric anomaly
87.8081°
Mean motion
3.7475 °/min
Orbital period
96.06 mins
BSTAR
0.00072737
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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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2026-04-07 17:26:51.258Z | 359.819° N | 2026-04-07 17:29:51.258Z | 56.542° ENE | 27.947° | 2026-04-07 17:32:51.258Z | 116.978° SE |
| 4 mins | 2026-04-07 19:06:51.258Z | 278.123° WNW | 2026-04-07 19:07:51.258Z | 258.775° W | 19.312° | 2026-04-07 19:10:51.258Z | 209.664° SW |
| 4 mins | 2026-04-08 07:28:51.258Z | 130.305° SE | 2026-04-08 07:29:51.258Z | 110.306° ESE | 20.469° | 2026-04-08 07:32:51.258Z | 58.746° ENE |
| 6 mins | 2026-04-08 09:05:51.258Z | 251.284° W | 2026-04-08 09:07:51.258Z | 291.181° WNW | 26.293° | 2026-04-08 09:11:51.258Z | 3.395° NNE |
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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