CAS500-3, 66655
Orbit data source: Space-Track
CAS500-3, 66655 is a payload satellite owned by KAIST (KR) in SSO that was launched on Wed, 26 Nov 2025 UTC via an NURI launch vehicle from the Naro Space Center, South Korea (NSC). 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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66655 intel report (Beta)
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Identifier
Orbit
Country
KR / SKORRelated business
Manufacturer
SatRec Initiative
Mission
Operational Commercial Technology
Bus & Motor
CAS500, Unknown motor
Mass
516 kg wet, 516 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 4 Pan, 1.1 m
Radar Cross Section
7.561 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 1 day ago
TLE from 1 day ago
0 CAS500-3
1 66655U 25274F 26151.74336438 .00001559 00000-0 17455-3 0 9996
2 66655 97.7448 80.1691 0005696 154.9254 205.2240 14.88277024 27704Epoch: 2026-05-31T17:50Z
TLE epoch observation values (Epoch: 2026-05-31T17:50:26.682Z)
Latitude
-0.00007°
Longitude
-76.68272°
Altitude
609.955 km
Speed
7.552 km/s
True Right ascension
05h 20m 40s
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
03:18:36
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
604.317 km
Perigee altitude
596.367 km
Semi-major axis
6,978.479 km
Eccentricity
0.00057
Inclination
97.7448°
RAAN
80.1691°
Arg. of periapsis
154.9254°
True anomaly
205.1962°
Mean anomaly
205.224°
Eccentric anomaly
205.2101°
Mean motion
3.72308 °/min
Orbital period
96.69 mins
BSTAR
0.00017455
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Other satellites on launch #274 in the year 2025 (2025-11-26 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.CAS500-3 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 | 2026-06-01 18:12:12.906Z | 103.372° ESE | 2026-06-01 18:14:12.906Z | 72.411° E | 16.962° | 2026-06-01 18:17:12.906Z | 25.671° NE |
| 6 mins | 2026-06-01 19:47:12.906Z | 201.333° SSW | 2026-06-01 19:50:12.906Z | 268.751° W | 31.179° | 2026-06-01 19:53:12.906Z | 325.942° NNW |
| 5 mins | 2026-06-02 07:33:12.906Z | 51.31° ENE | 2026-06-02 07:35:12.906Z | 102.946° ESE | 29.251° | 2026-06-02 07:38:12.906Z | 158.926° S |
| 4 mins | 2026-06-02 09:09:12.906Z | 317.719° NNW | 2026-06-02 09:10:12.906Z | 299.947° NW | 17.93° | 2026-06-02 09:13:12.906Z | 251.057° W |
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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