• The Indian Space Research Organisation (ISRO) launched the indigenously made sounding rocket, RH-560, on March 12, 2021, from the Satish Dhawan Space Centre (SDSC), Sriharikota Range (SHAR), Andhra Pradesh.
• The aim of this RH-560 is to study attitudinal variations in the neutral winds and plasma dynamics.
• The Bengaluru-headquartered space agency, ISRO has developed a series of sounding rockets called “Rohini series”. Among them the important ones are RH-200, RH-300 and RH-560.
• Here the number in the name indicates the diameter of the rocket in mm. 

Sounding rockets :

• They are one or two stage solid propellant rockets used for probing the upper atmospheric regions and for space research.
• They also serve as easily affordable platforms to test or prove prototypes of new components or subsystems intended for use in launch vehicles and satellites.