Sounding rockets are one or two stage solid propellant rockets used for probing the upper atmospheric regions and for space research

Technical Specification

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


Launching of Sound Rocket :

ISRO started launching indigenously made sounding rockets from 1965 and experience gained was of immense value in the mastering of solid propellant technology.

In 1975, all sounding rocket activities were consolidated under the Rohini Sounding Rocket (RSR) Programme. RH-75, with a diameter of 75mm was the first truly Indian sounding rocket, which was followed by RH-100 and RH-125 rockets.

The sounding rocket programme was the bedrock on which the edifice of launch vehicle technology in ISRO could be built.

It is possible to conduct coordinated campaigns by simultaneously launching sounding rockets from different locations. It is also possible to launch several sounding rockets in a single day.