STARLINK-3647, 51994
Orbit data source: Space-Track
STARLINK-3647, 51994 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Wed, 09 Mar 2022 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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51994 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, Unknown motor
Mass
297 kg wet, ~275 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 1 Pan, 10.1 m
Radar Cross Section
13.562 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 15 hours ago
TLE from 15 hours ago
0 STARLINK-3647
1 51994U 22025AQ 25346.89051569 .00000896 00000-0 74411-4 0 9996
2 51994 53.2174 48.7787 0001361 95.7009 264.4138 15.08837827207819Epoch: 2025-12-12T21:22Z
TLE epoch observation values (Epoch: 2025-12-12T21:22:20.555Z)
Latitude
-0.00006°
Longitude
6.36736°
Altitude
540.739 km
Speed
7.593 km/s
True Right ascension
03h 15m 06s
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
11:18:36
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
540.937 km
Perigee altitude
539.053 km
Semi-major axis
6,918.132 km
Eccentricity
0.00014
Inclination
53.2174°
RAAN
48.7787°
Arg. of periapsis
95.7009°
True anomaly
264.39828°
Mean anomaly
264.4138°
Eccentric anomaly
264.40604°
Mean motion
3.7719 °/min
Orbital period
95.44 mins
BSTAR
0.000074411
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Other satellites on launch #25 in the year 2022 (2022-03-09 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-3647 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 | 2025-12-13 13:46:14.007Z | 313.994° NW | 2025-12-13 13:49:14.007Z | 10.545° NNE | 43.877° | 2025-12-13 13:53:14.007Z | 125.17° SE |
| 6 mins | 2025-12-14 06:57:14.007Z | 235.838° WSW | 2025-12-14 07:00:14.007Z | 20.093° NNE | 42.794° | 2025-12-14 07:03:14.007Z | 47.073° ENE |
| 4 mins | 2025-12-14 08:38:14.007Z | 312.193° NW | 2025-12-14 08:39:14.007Z | 330.557° NNW | 17.967° | 2025-12-14 08:42:14.007Z | 22.37° NNE |
| 4 mins | 2025-12-14 11:59:14.007Z | 349.355° N | 2025-12-14 12:01:14.007Z | 29.392° NE | 19.872° | 2025-12-14 12:03:14.007Z | 64.729° ENE |
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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