STARLINK-34187, 63956
Orbit data source: Space-Track
STARLINK-34187, 63956 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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63956 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: 15 hours ago
TLE from 15 hours ago
0 STARLINK-34187
1 63956U 25099E 25346.92373656 .00044820 00000-0 16277-2 0 9998
2 63956 43.0015 306.4855 0001266 274.1057 85.9650 15.27594972 34063Epoch: 2025-12-12T22:10Z
TLE epoch observation values (Epoch: 2025-12-12T22:10:10.838Z)
Latitude
-0.00003°
Longitude
-107.91808°
Altitude
482.719 km
Speed
7.626 km/s
True Right ascension
20h 25m 56s
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
11:37:30
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
485.818 km
Perigee altitude
484.08 km
Semi-major axis
6,863.086 km
Eccentricity
0.00013
Inclination
43.0015°
RAAN
306.4855°
Arg. of periapsis
274.1057°
True anomaly
85.97947°
Mean anomaly
85.965°
Eccentric anomaly
85.97224°
Mean motion
3.81737 °/min
Orbital period
94.31 mins
BSTAR
0.0016277
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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-34187 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 | 2025-12-14 01:05:05.173Z | 229.191° WSW | 2025-12-14 01:07:05.173Z | 179.612° S | 39.767° | 2025-12-14 01:10:05.173Z | 79.499° E |
| 5 mins | 2025-12-14 02:44:05.173Z | 279.952° WNW | 2025-12-14 02:46:05.173Z | 331.061° NNW | 38.967° | 2025-12-14 02:49:05.173Z | 68.079° E |
| 6 mins | 2025-12-14 04:23:05.173Z | 293.35° NW | 2025-12-14 04:26:05.173Z | 51.235° ENE | 39.25° | 2025-12-14 04:29:05.173Z | 91.977° ESE |
| 5 mins | 2025-12-14 06:02:05.173Z | 273.173° WNW | 2025-12-14 06:04:05.173Z | 227.96° WSW | 34.125° | 2025-12-14 06:07:05.173Z | 140.25° 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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