Sounding rockets are maybe a couple organize strong charge rockets utilized for testing the upper climatic districts and for space research. They additionally serve as effortlessly reasonable stages to test or demonstrate models of new segments or subsystems planned for use in dispatch vehicles and satellites.

The dispatch of the primary sounding rocket from Thumba close Thiruvananthapuram, Kerala on 21 November 1963, denoted the start of the Indian Space Program . Sounding rockets made it conceivable to test the air in situ utilizing rocket-borne instrumentation.

ISRO began propelling indigenously made sounding rockets from 1965 and experience picked up was of gigantic esteem in the acing of strong fuel innovation. In 1975, all sounding rocket exercises were united under the Rohini Sounding Rocket (RSR) Program. RH-75, with a distance across of 75mm was the principal genuinely Indian sounding rocket, which was trailed by RH-100 and RH-125 rockets. The sounding rocket program was the bedrock on which the building of dispatch vehicle innovation in ISRO could be assembled. It is conceivable to direct planned crusades by all the while propelling sounding rockets from various areas. It is likewise conceivable to dispatch a few sounding rockets in a solitary day

Operational sounding Rockets

Three versions are offered as operational sounding rockets , which cover a payload range of 8-100 Kg and an apogee range of 80-475 km.

Vehicle RH-200 RH-300-Mk-II RH-560-MK-II

Payload (in kg) 10 60 100

Altitude (in km) 80 160 470

Purpose Meterology Aeronomy Aeronomy

Launch Pad Thumba Balasore SDSC-SHAR SDSC-SHAR

Various scientific missions with national and international participation have been conducted using the Rohini sounding rockets.