Overview
K-RadCube is a 12U-class CubeSat selected as a Secondary Payload of the Artemis II mission, with the primary objective of characterizing the space radiation environment in High Earth Orbit (HEO). This mission represents Korea's first CubeSat to be launched in conjunction with a NASA crewed lunar mission and aims to acquire essential baseline data for radiation risk assessment in future human lunar and deep-space exploration missions. K-RadCube will operate across a wide range of altitudes, from approximately 200 km up to approximately 70,000 km.
Key facts
- Payload
- —
- Reach
- —
- Speed
- —
- Weight
- —
- IP rating
- —
- Battery
- —
- Power
- —
- Autonomy
- fully autonomous
- Launch year
- 2026
- Price
- —
- Status
- active
Detailed specifications
Safety & certifications1
- Safety Certification
- Satisfied NASA’s rigorous safety standards for manned flight as Artemis II secondary payload.[4]
Other2
- Deployment Count
- 1
- Deployment Notes
- Deployed 5 hours and 7 minutes after launch at 40,000 km altitude on April 1, 2026, 12:58 PM, from Orion Stage Adapter into highly elliptical orbit (200-70,000 km).[1][3][8][9]
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