Sounding rockets

  Sounding rockets   Introduction   ISRO started launching sounding rockets from 1965. In 1975, all sounding rocket activities were consolidated under the Rohini Sounding Rocket (RSR) Program in 1975. RH-75, with a diameter of 75mm was the first Indian sounding rocket, which was followed by RH-100 and RH-125 rockets. The sounding rocket program was the base for which the edifice of launch vehicle technology in ISRO could be built. It is possible to conduct coordinated campaigns by launching several sounding rockets from different locations. It is also possible to launch several sounding rockets in a single day.     About sounding rockets Sounding rockets are commonly used for Research in aeronomy The first sounding rocket which was launched in Thumba near Thiruvananthapuram, Kerala on 21 November 1963, was the beginning of the Indian Space Programme. The Thumba Equatorial Rocket Launching Station (TERLS) was established in 1963 at Thumba, whi...