Find Sejong-4
NORAD ID: 66660 • Int'l Des: NNA 2025-274 • Owner: HANCOM • Country: KR • operational
Also known as: OBJECT L spacetrack K-HERO celestrak
LEOCIRCULARRETROGRADESSO
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About Sejong-4
Sejong-4 (NORAD 66660) is a satellite launched Nov 26, 2025 by HANCOM of KR. It operates in LEO, CIRCULAR, RETROGRADE, SSO orbit with a mass of 7.00 kg.
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Two-Line Element Set
1 66660U 25274L 26289.54030849 .00002133 00000-0 20345-3 0 9990
2 66660 97.7519 217.3841 0013267 341.0281 19.0443 14.94336618 48354
Epoch: Oct 16, 2026 •
Age: 12 hours
Current Status
Altitude 600.4 km
Apogee / Perigee N/A
Velocity 7.56 km/s
Sub-Earth Point 81.12°N,
123.27°E
Launch Date Nov 26, 2025
Age 0.8 years
Type other
Technical Details
Classification Payload
Mass 7.00 kg
Dry Mass 7.00 kg
Total Mass 7.00 kg
Length 0.30 m
Diameter 0.10 m
Span 0.80 m
Shape Box + 2 pan
Manufacturer HANCOM
Bus Type Cubesat 6U
Phase Status In Orbit
Owner/State HANCOM/KR
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