LEMUR 2 SEJONG-2, 64586
Orbit data source: Space-Track
LEMUR 2 SEJONG-2, 64586 is a payload satellite owned by Hancom InSpace (US) in SSO that was launched on Mon, 23 Jun 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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64586 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
Spire/Glasgow
Mission
Operational Commercial Imaging
Bus & Motor
CUBESAT 6U, Unknown motor
Mass
11 kg wet, 11 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 0.4 m
Radar Cross Section
0.077 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 6 hours ago
TLE from 6 hours ago
0 LEMUR 2 SEJONG-2
1 64586U 25135BL 26171.58081462 .00003354 00000-0 29868-3 0 9997
2 64586 97.7684 286.5782 0003486 324.5419 35.5570 14.96716741 54458Epoch: 2026-06-20T13:56Z
TLE epoch observation values (Epoch: 2026-06-20T13:56:22.383Z)
Latitude
-0.00003°
Longitude
168.69155°
Altitude
578.125 km
Speed
7.573 km/s
True Right ascension
19h 06m 18s
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
07:21:33
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
576.485 km
Perigee altitude
571.638 km
Semi-major axis
6,952.199 km
Eccentricity
0.00035
Inclination
97.7684°
RAAN
286.5782°
Arg. of periapsis
324.5419°
True anomaly
35.58024°
Mean anomaly
35.557°
Eccentric anomaly
35.56862°
Mean motion
3.74421 °/min
Orbital period
96.15 mins
BSTAR
0.00029868
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Other satellites on launch #135 in the year 2025 (2025-06-23 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.LEMUR 2 SEJONG-2 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 | 2026-06-20 20:54:46.972Z | 0.505° NNE | 2026-06-20 20:58:46.972Z | 270.954° WNW | 37.026° | 2026-06-20 21:01:46.972Z | 213.941° SW |
| 6 mins | 2026-06-21 07:43:46.972Z | 167.494° S | 2026-06-21 07:45:46.972Z | 172.655° S | 44.14° | 2026-06-21 07:49:46.972Z | 347.27° 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
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