STARLINK-33974, 63954
Orbit data source: Space-Track
STARLINK-33974, 63954 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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63954 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: 13 hours ago
TLE from 13 hours ago
0 STARLINK-33974
1 63954U 25099C 25346.93401608 .00044393 00000-0 16122-2 0 9990
2 63954 43.0021 306.5630 0001609 260.9829 99.0841 15.27597050 34069Epoch: 2025-12-12T22:24Z
TLE epoch observation values (Epoch: 2025-12-12T22:24:58.989Z)
Latitude
0.00002°
Longitude
-111.55129°
Altitude
482.948 km
Speed
7.626 km/s
True Right ascension
20h 26m 15s
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
09:41:27
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
486.047 km
Perigee altitude
483.839 km
Semi-major axis
6,863.08 km
Eccentricity
0.00016
Inclination
43.0021°
RAAN
306.563°
Arg. of periapsis
260.9829°
True anomaly
99.10231°
Mean anomaly
99.0841°
Eccentric anomaly
99.0932°
Mean motion
3.81737 °/min
Orbital period
94.31 mins
BSTAR
0.0016122
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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-33974 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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2025-12-13 23:42:20.964Z | 178.247° S | 2025-12-13 23:44:20.964Z | 143.319° SSE | 15.84° | 2025-12-13 23:46:20.964Z | 108.046° ESE |
| 6 mins | 2025-12-14 01:20:20.964Z | 239.582° WSW | 2025-12-14 01:23:20.964Z | 105.75° ESE | 41.406° | 2025-12-14 01:26:20.964Z | 74.325° E |
| 6 mins | 2025-12-14 02:59:20.964Z | 282.241° WNW | 2025-12-14 03:02:20.964Z | 21.781° NNE | 37.43° | 2025-12-14 03:05:20.964Z | 72.708° E |
| 5 mins | 2025-12-14 04:39:20.964Z | 296.366° NW | 2025-12-14 04:41:20.964Z | 39.395° NE | 42.579° | 2025-12-14 04:44:20.964Z | 96.496° ESE |
| 5 mins | 2025-12-14 06:18:20.964Z | 257.919° W | 2025-12-14 06:20:20.964Z | 194.846° SSW | 29.589° | 2025-12-14 06:23:20.964Z | 143.069° 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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