RPS-420

Satellite Orbiting Rocket Number 420 (Indonesian: Roket Pengorbit Satelit 420, abbreviated as RPS-420), or Pengorbitan-1, was a proposed space launch vehicle under consideration in Indonesia from 2008 to 2012. Recent developments have focused on a larger core stage called RX-450 and a smaller upper stage called RX-320, so this particular version RPS-420 is not being pursued any longer. However the goal remains valid: Indonesia aims to reach orbit with home-made rockets and satellites in order to become an Asian space power.

The RPS or "Pengorbitan" (Indonesian for "orbital") will be an ultra-light orbital launch vehicle derived from the "RX" (Roket Eksperimental) rocket family. Several multistage launchers are being developed by the state company Spacetecx for Indonesia's National Institute of Aeronautics and Space (LAPAN). They will be launched from the Stasiun Peluncuran Roket facility in Pameungpeuk, where RX-250-LPN mini-rockets have blasted off already. No timeline for the first flight has been announced.

Currently Indonesian RX rockets have suborbital capabilities only and could serve as a platform for high altitude outer atmosphere studies. Indonesia plans to develop orbital microsatellite launching capabilities with the RPS to launch small satellites into low Earth orbit (LEO). This project was first revealed to the public during the Indo Defence Expo-2008 exhibition in Jakarta.

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Wikipedia