The
Indian Space Research Organisation (ISRO) wrote history Wednesday evening when
the Chandrayaan-3 spacecraft achieved a gentle landing on the surface of the
Moon, cementing India's reputation as a global space power. With the mission's
accomplishment, India has become the first country to land a spacecraft on the
Moon's unknown zone of the south pole, and the fourth overall.
The
spacecraft's Vikram lander touched down softly at 6.04 PM (IST), putting an end
to the disappointment of the Chandrayaan-2 lander's crash landing four years
earlier. While congratulating the mission's scientific team, ISRO head S
Somnath stated that the lander's health would now be examined and that the
rover would emerge from the lander module within the next few hours.
What happened during
the final stage of the Chanrayaan-3 mission
The
following are the four phases that occurred during the mission's "15
minutes of terror" before Chandrayaan-3 safely soft landed on the Moon:
Rough braking phase: During this
phase, the lander's horizontal velocity dropped from roughly 6,000 km/h to near
zero for a soft landing.
Attitude
holding phase: The lander tilted from a horizontal to a vertical posture while
traversing a distance of 3.48 kilometres at a height of roughly 7.43 kilometres
above the lunar surface.
The fine-breaking phase will last around 175 seconds, during which time the lander will
travel approximately 28.52 kilometres horizontally to the landing spot while
lowering its altitude by approximately 1 kilometre. Between the Attitude Hold
and Fine-braking phases, Chandrayaan-2 lost control.
Picture from Chandrayan -3
Lander's health is to be assessed, and the rover is to come out .!The most difficult portions were the launch, landing, and capture
by the Moon's orbit, the fall of the lander, and the final landing. The
lander's health will be evaluated, and the rover will emerge from the Lander
within the next several hours, according to ISRO chief S Somanath.
Landing velocity less than expected: ISRO chief
According to ISRO chairman Somnath, the landing velocity was less
than the targeted 2 metres per second, which gives tremendous promise for
future missions. He stated that the next 14 days of experiments by the
instruments aboard the lander and rover will be intriguing.
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