ISRO Successfully Tests Cryogenic Engine for Upcoming GSLV Mission to Launch Navigation Satellite
The Indian Space Research Organisation (ISRO) has successfully completed the flight acceptance test of a cryogenic engine for its forthcoming Geosynchronous Satellite Launch Vehicle (GSLV-F19) mission. This mission is slated to deploy the fourth navigation satellite, NVS-04, which will serve both military and civilian applications. The test, conducted at the Propulsion Complex in Tamil Nadu, involved the ignition of both the main engine and the gas generator, with performance reported as normal and consistent with predictions during the 200-second duration. This indigenous cryogenic upper stage, which utilizes liquid hydrogen as fuel and liquid oxygen as an oxidizer at extremely low temperatures, is a critical component for placing satellites into their intended orbits efficiently. The GSLV-F19 mission is expected to take place in 2027, following ISRO's recent success in October with the GSLV-F18 mission, which placed the NVS-03 satellite into geosynchronous orbit.