The Indian Space Research Organisation (ISRO) on Wednesday, November 23, completed the 200th consecutive successful launch of the versatile RH200 sounding rocket from Thumba in Thiruvananthapuram. ISRO termed it a “historic moment”. It was witnessed by former President Ram Nath Kovind and ISRO chairman S Somanath, among others.The successful flight of RH200 took off from the Thumba Equatorial Rocket Launching Station (TERLS). “Indian sounding rockets are used as privileged tools for the scientific community for carrying out experiments on meteorology, astronomy and similar branches of space physics,” an ISRO statement said.Campaigns such as Equatorial ElectroJet (EEJ), Leonid Meteor Shower (LMS), Indian Middle Atmosphere Programme (IMAP), Monsoon Experiment (MONEX), Middle Atmosphere Dynamics (MIDAS), and Sooryagrahan-2010 have been conducted using the sounding rocket platform for scientific exploration of the Earth’s atmosphere, it said.The Rohini Sounding Rocket (RSR) series have been the forerunners for ISRO’s heavier and more complex launch vehicles, with a continued usage even today for atmospheric and meteorological studies, the national space agency headquartered here said. “The 200th consecutive successful flight stands testimony to the commitment of Indian rocket scientists towards unmatched reliability demonstrated over the years,” it was stated.