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: 7 hours ago
TLE from 7 hours ago
0 LEMUR 2 SEJONG-2
1 64586U 25135BL 26260.27667410 .00004625 00000-0 40311-3 0 9993
2 64586 97.7772 14.7471 0005208 39.5830 320.5772 14.97359261 67722Epoch: 2026-09-17T06:38Z
TLE epoch observation values (Epoch: 2026-09-17T06:38:24.642Z)
Latitude
0.00007°
Longitude
-81.07182°
Altitude
575.311 km
Speed
7.575 km/s
True Right ascension
00h 58m 59s
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
06:19:41
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
575.691 km
Perigee altitude
568.452 km
Semi-major axis
6,950.209 km
Eccentricity
0.00052
Inclination
97.7772°
RAAN
14.7471°
Arg. of periapsis
39.583°
True anomaly
320.53928°
Mean anomaly
320.5772°
Eccentric anomaly
320.55824°
Mean motion
3.74582 °/min
Orbital period
96.11 mins
BSTAR
0.00040311
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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 | 2026-09-17 20:02:10.069Z | 32.037° NE | 2026-09-17 20:06:10.069Z | 107.722° ESE | 33.092° | 2026-09-17 20:09:10.069Z | 160.404° S |
| 4 mins | 2026-09-17 21:39:10.069Z | 322.195° NNW | 2026-09-17 21:41:10.069Z | 285.942° WNW | 18.341° | 2026-09-17 21:43:10.069Z | 253.98° W |
| 4 mins | 2026-09-18 06:52:10.069Z | 92.802° ESE | 2026-09-18 06:53:10.069Z | 73.165° E | 20.576° | 2026-09-18 06:56:10.069Z | 22.262° NNE |
| 5 mins | 2026-09-18 08:26:10.069Z | 214.297° SW | 2026-09-18 08:28:10.069Z | 255.57° W | 28.968° | 2026-09-18 08:31:10.069Z | 317.542° NNW |
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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