| CAS500-1 | |
| Mission Type: | Earth observation |
| Cospar Id: | 2021-022A |
| Satcat: | 47932 |
| Dimensions: | 1.9 m x 1.9 m x 2.9 m |
| Launch Rocket: | Soyuz-2.1a / Fregat |
| Launch Site: | Baikonur Site 31/6 |
| Launch Contractor: | Glavkosmos |
| Orbit Regime: | Low Earth orbit |
| Orbit Inclination: | 97.7 degrees |
| Orbit Period: | 15 orbits/day |
| CAS500-2 | |
| Mission Type: | Earth observation |
| Cospar Id: | TBA |
| Satcat: | TBA |
| Launch Date: | 2025 (planned)[1] |
| Launch Rocket: | Falcon 9 Block 5 |
| Launch Site: | TBA |
| Launch Contractor: | SpaceX |
| Orbit Regime: | Low Earth orbit |
| CAS500-3 | |
| Mission Type: | Earth observation |
| Cospar Id: | 2025-274 |
| Launch Date: | 26 November 2025 |
| Launch Rocket: | Nuri (KSLV-II) |
| Launch Site: | Naro LP-2 |
| Launch Contractor: | KARI |
| Orbit Regime: | Low Earth orbit |
CAS500 (Compact Advanced Satellite 500) is a series of Earth observation satellites developed by the Korea Aerospace Research Institute (KARI).[2] [3]
CAS500-1,, is a prototype 500kg (1,100lb) class Earth observation satellite that was launched by South Korea at the Baikonur Cosmodrome on 22 March 2021.[4] [5] [6] [7] It is in a 500km (300miles) Sun-synchronous orbit, inclined by 97.7 degrees or 15 orbits/day.
CAS500-2 was expected to launch in 2022 also on a Russian rocket, but the launch was cancelled after the Russian invasion of Ukraine.[8] [9] [10] The satellite was later rescheduled to launch together with CAS500-4 on a SpaceX Falcon 9 rocket.[11] [12] [13]
CAS500-3 was launched on 26 November 2025 on the South Korean launch vehicle Nuri.[14] [15]
