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RANDEV (Repeater Arrangement & Disaster Early View)) is a South Korean 3U-CubeSat designed by Korea Advanced Institute of Science and Technology (KAIST). RANDEV conducts an earth observation mission to collect potential hazard image data from volcanoes, coasts, and clouds.

Payloads are hyper-spectral camera, S-band receiver, and X-band transmitter. The antennas are used to conduct store & forward and satellite internet missions.

The concept of operations (CONOPS) of RANDEV is organized using top-down approach, and the top of the CONOPS is defined to ‘Operation’ which is comprised of ‘Modes’. A Mode consist of ‘Behaviors’, and they are composed of ‘Actions’. The Actions are the bottom of the RANDEV missions, and defined by SysML Activity Diagram in language. The Actions are function names of RANDEV subsystem softwares. The time consumption of software functions is estimated using the activity diagram, and in order to practice three missions, a time scheduling methodology is proposed using greedy-knapsack algorithm in this research.

Nation: South Korea
Type / Application: Earth observation, communications
Operator: KAIST
Contractors: KAIST
Equipment: Hyper-spectral camera, S-band receiver, X-band transmitter
Configuration: CubeSat (3U)
Propulsion: None
Power: 2 deployable fixed solar arrays, solar cells, batteries
Satellite COSPAR Date LS Launch Vehicle Remarks
RANDEV (ASTRIS 2) 2022-065E 21.06.2022 Na LP-2 Nuri (KSLV-2) with PVSAT, STEP Cube Lab 2, MIMAN, SNUGLITE 2, Dummy Cubesat, Nuri Test Payload 2

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