ISRO Successfully Tests Solid Rocket Booster For Gaganyaan Mission The booster engine is part of the Geosynchronous Satellite Launch Vehicle MkIII (GSLV Mk III) rocket that would carry Indian astronauts to space. The Indian Space Research Organisation (ISRO) on Friday successfully completed the static test of the human-rated solid rocket booster (HS200) at the Satish Dhawan Space Centre (SDSC) in Andhra Pradesh’s Sriharikota at 7.20am on Friday. The test was for ISRO’s Gaganyaan programme. “ISRO successfully completed the static test of a human-rated solid rocket booster (HS200) for the Gaganyaan Programme at Satish Dhawan Space Centre (SDSC), Sriharikota, Andhra Pradesh