The Indian Space Research Organisation launched the 200th consecutive successful flight of the RH-200 sounding rocket. ISRO’s RH-200 sounding rocket records 200th consecutive successful flight The RH-200 is a solid motor-powered expendable rocket capable of climbing up to a height of 70 km bearing payloads designed to study the upper atmosphere. Sounding rockets are used by the scientific community for carrying out experiments on meteorology, astronomy and similar branches of space physics.