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.
Focus sentinelFocus sentinel
Request partner network tasking
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
64586 intel report (Beta)
Focus sentinelFocus sentinel
Edit Public Description
Focus sentinelFocus sentinel
Edit Sat Name
Focus sentinelFocus sentinel
Create New Watchlist
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: 5 hours ago
TLE from 5 hours ago
0 LEMUR 2 SEJONG-2
1 64586U 25135BL 26225.19032868 .00002043 00000-0 18212-3 0 9995
2 64586 97.7728 339.8501 0005755 129.7109 230.4621 14.97115279 62474Epoch: 2026-08-13T04:34Z
TLE epoch observation values (Epoch: 2026-08-13T04:34:04.397Z)
Latitude
-0.00003°
Longitude
-50.30168°
Altitude
581.413 km
Speed
7.568 km/s
True Right ascension
22h 39m 24s
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
23:41:01
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
576.827 km
Perigee altitude
568.827 km
Semi-major axis
6,950.964 km
Eccentricity
0.00058
Inclination
97.7728°
RAAN
339.8501°
Arg. of periapsis
129.7109°
True anomaly
230.41126°
Mean anomaly
230.4621°
Eccentric anomaly
230.43668°
Mean motion
3.7452 °/min
Orbital period
96.12 mins
BSTAR
0.00018212
Loading maneuver chart data...
Computing Atmospheric mass density...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Other satellites on launch #135 in the year 2025 (2025-06-23 UTC)
Did you know?
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
Loading observer location...
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 | 2026-08-13 19:36:11.830Z | 62.725° ENE | 2026-08-13 19:38:11.830Z | 96.855° ESE | 16.077° | 2026-08-13 19:40:11.830Z | 129.023° SE |
| 5 mins | 2026-08-13 21:11:11.830Z | 340.409° N | 2026-08-13 21:13:11.830Z | 293.083° NW | 29.604° | 2026-08-13 21:16:11.830Z | 228.691° WSW |
| 6 mins | 2026-08-14 07:58:11.830Z | 183.096° SSW | 2026-08-14 08:01:11.830Z | 286.259° WNW | 40.355° | 2026-08-14 08:04:11.830Z | 338.341° N |
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 |
|---|
CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
Authenticating...
Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in descending order |
|---|