Chandrayan 2- As received

According to the plan, Vikram was supposed to lose most of its velocity by the time it was 400m from the lunar surface, and should have been hovering above the intended landing site — set to make a soft vertical descent at “walking pace”. But due to its high velocity, it crashed on the Moon’s surface. [23/08, 15:10] +91 98107 44101: At that time, the module was still moving with a vertical velocity of 59 metres per sec (or 212 km/hr) and a horizontal velocity of 48.1 m/sec (or 173 km/hr). The lander was at that point around 1.09 km from its designated landing spot on the Moon. [23/08, 15:10] +91 98107 44101: Among the clutter on tv let me explain the challenge ahead for a smooth landing and critical last 15 mins manouvres to turn vertical from horizontal with correct speed and to boost reverse engines to lower landing speed to almost zero at the right time and what was exact failure of chandrayan 2 barely 500 metres above ground 👇actually 5 km to 500 m What went wrong with Chandrayaan-2? mission’s lander and rover were supposed to make a soft landing on the Moon on September 7. However, according to Isro Chairman S Somanath, three mistakes led to their crash on the lunar surface. What went wrong? Chandrayaan-2, sent to space on July 22, 2019, whose lander, Vikram, and rover, Pragyaan, crashed on the Moon’s surface during the early hours of September What happened on the day of landing of Vikram? The Indian Space Research Organisation (ISRO) lost contact with Vikram on the day of landing when it was barely 335 metres (0.335 km) from the surface of the Moon. The initial data from the space agency’s Telemetry Tracking and Command Centre suggested that the failure occurred in the “Fine braking phase” in the final part of Vikram’s journey (an altitude of 5 km to 400 m), which kicked in when the lander was 5 km from the lunar surface. The giant screens installed at the centre showed that the green line, which represented the lander, began deviating from the time its altitude was just above 2 km, and continued to deviate before stopping at a point that was clearly below 1 km altitude, and somewhere near or below 500m. [23/08, 15:10] +91 98107 44101: The critical technical manoeuvre that the Chandrayaan-3 lander will have to perform on August 23 when it enters the final 15 minutes of its attempt to make a soft landing on the Moon will be to transfer its high-speed horizontal position to a vertical one — in order to facilitate a gentle descent on to the surface. These final 15 minutes on Wednesday evening will determine the success of the mission. In July 2019, after the Indian Space Research Organisation (ISRO) aborted the first attempt to launch the Chandrayaan-2 mission, K Sivan, then chairman of India’s space research body, had described this phase as “15 minutes of terror”. Dr Sivan’s description captured the essence of the complexity of the mission’s final phase — the one in which Chandrayaan-2 failed after the Vikram lander did not switch appropriately from the horizontal to the vertical position, and hurtled on to the surface of the Moon when it was entering the “fine braking phase” 7.42 km from the lunar surface. [23/08, 15:10] +91 98107 44101: Among all the clutter on tv at 5:45 most critical manuouvres will be done to turn it vertically from horizontal orbit at the right time and fire booster engines to reduce speed at the right time and descent at the right speed to overcome gravity pull to avoid crashing to almost zero for a soft landing. Due to software glitch earlier chandrayan 2 lost control and carried on drifting with vertical tilt and horizontal high speed According to a failure analysis report submitted to the Indian Space Research Organisation (Isro), the crash of the spacecraft was caused by a software glitch The Isro lost all contact with the Vikram lander on the day of the landing when it was around 335 metres (0.335 km) from the surface of the moon. The objective of the lunar mission was to make a soft landing on the surface of the moon. The reason behind the crash landing of Vikram lander was that it tilted 410 degre When the lander tilted from its set trajectory, the scientists could do nothing. The velocity of the lander should have slowed down from 6,000 kmph to 0 kmph in four phases, but the space agency lost contact with it minutes before its touchdown. At that time, the module was moving with a vertical velocity of 59 metres per sec (or 212 km/hr) and a horizontal velocity of 48.1 m/sec (or 173 km/hr). The lander was around 1.09 km from its designated landing spot on the moon. [23/08, 15:10] +91 98107 44101: What happened on the day of landing of Vikram? The Indian Space Research Organisation (ISRO) lost contact with Vikram on the day of landing when it was barely 335 metres (0.335 km) from the surface of the Moon. The initial data from the space agency’s Telemetry Tracking and Command Centre suggested that the failure occurred in the “Fine braking phase” in the final part of Vikram’s journey (an altitude of 5 km to 400 m), which kicked in when the lander was 5 km from the lunar surface.