<p>The Indian Space Research Organisation (ISRO) on Wednesday carried out two more hot tests on the Service Module Propulsion System (SMPS) of its human spaceflight mission, Gaganyaan.</p>.<p>The second and third hot tests in the Service Module – System Demonstration Model phase 2 series were held at the Isro Propulsion Complex in Mahendragiri, in Tirunelveli in Tamil Nadu.</p>.<p>The first hot test was conducted on July 19.</p>.<p><strong>Also Read | <a href="https://www.deccanherald.com/science-and-environment/isro-hot-tests-gaganyaan-service-module-propulsion-system-1238963.html">ISRO hot-tests Gaganyaan service module propulsion system</a></strong></p>.<p>During the tests, the thrusters were operated in both continuous and pulse mode, in sync with the mission profile, Isro said.</p>.<p>The initial, 723.6-second hot test focussed on demonstrating the Orbital Module injection, the calibration burn of 100 N thrusters and the Liquid Apogee Motor (LAM) engines.</p>.<p>“The LAM engines and reaction control system (RCS) thrusters performed as expected,” Isro said.</p>.<p>The latter hot test which lasted 350 seconds aimed to demonstrate the circularisation of the Orbital Module to achieve the final orbit.</p>
<p>The Indian Space Research Organisation (ISRO) on Wednesday carried out two more hot tests on the Service Module Propulsion System (SMPS) of its human spaceflight mission, Gaganyaan.</p>.<p>The second and third hot tests in the Service Module – System Demonstration Model phase 2 series were held at the Isro Propulsion Complex in Mahendragiri, in Tirunelveli in Tamil Nadu.</p>.<p>The first hot test was conducted on July 19.</p>.<p><strong>Also Read | <a href="https://www.deccanherald.com/science-and-environment/isro-hot-tests-gaganyaan-service-module-propulsion-system-1238963.html">ISRO hot-tests Gaganyaan service module propulsion system</a></strong></p>.<p>During the tests, the thrusters were operated in both continuous and pulse mode, in sync with the mission profile, Isro said.</p>.<p>The initial, 723.6-second hot test focussed on demonstrating the Orbital Module injection, the calibration burn of 100 N thrusters and the Liquid Apogee Motor (LAM) engines.</p>.<p>“The LAM engines and reaction control system (RCS) thrusters performed as expected,” Isro said.</p>.<p>The latter hot test which lasted 350 seconds aimed to demonstrate the circularisation of the Orbital Module to achieve the final orbit.</p>
