11/11/2023 0 Comments Landr costISRO improved the structural rigidity, increased polling in instruments, increased data frequency and transmission, and added additional multiple contingency systems to improve lander survivability in the event of failure during descent and landing. It targeted a more precise 16 km 2 (6.2 sq mi) landing region based on images provided by the Orbiter High-Resolution Camera (OHRC) onboard Chandrayaan-2's orbiter. The impact legs were made stronger compared to Chandrayaan-2 and instrumentation redundancy was improved. ![]() Additionally, the Chandrayaan-3 lander is equipped with a laser Doppler velocimeter (LDV) to allow measuring attitude in three directions. Attitude correction rate was increased from Chandrayaan-2's 10°/s to 25°/s with Chandrayaan-3. This was removed by allowing the lander to control attitude and thrust during all phases of descent. One of the main reasons for Chandrayaan-2's landing failure was attitude increase during the camera coasting phase. The lander has four variable-thrust engines with slew rate changing capabilities, unlike Chandrayaan-2's lander, which had five, with the fifth one being centrally mounted and capable only of fixed thrust. It carried the rover and has various scientific instruments to perform on-site analysis. It is also box-shaped, with four landing legs and four landing thrusters capable of producing 800 newtons of thrust each. The Vikram lander was responsible for the soft landing on the Moon. Ĭhandrayaan-3 comprises three main components: a propulsion module, lander, and rover. ![]()
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