Here's everything you need to know about Vikram landing on the Moon
Vikram will be landing between Mazinus C and Simpelius N craters near the Moon’s South Pole
The lander is aiming for the high plan between the two craters about 70 degrees South on the Moon.
Vikram will start its descent 100 kilometers from the lunar surface and 587 kilometers from the landing site
This is the will the first phase of Chandrayaan 2’s soft landing on the Moon. It is called the rough breaking phase. Vikram will have all four of its 800N liquid thruster engines on.
The orbiter will be scanning the landing site and tracking Vikram from the Moon’s orbit
The orbiter will be coordinating with the lander’s Laser Altimeter (LASA), which can detect the topography of the lunar surface.
Vikram’s final descent will begin when it’s 30 kilometers from the surface
Vikram will switch over the absolute navigation phase. During this time it will also switch on its Kurtz above (KA) Band Altimeter 1,the Lander Position Detection Camera (LPDC) and LASA to find a clean space to set down.
Vikram will shut down half of its engines
At around 400 meters from the lunar surface, Vikram will shut down two of its engines in the hovering stage. It will also switch to LASA, KA Band Altimeter 2, and the Lander Horizontal Velocity Camera (LHVC).
Switching over to the central engine
If all goes well, the ISRO will land Vikram on its primary landing site. It will attempt a parabolic descent at a height of 10 meters with only its central engine on. If the primary landing site is deemed unfit, ISRO has a backup site located around 1.6 kilometers away.
Touchdown on the Moon
From 10 meters, it will take Vikram 13 seconds to touchdown.
It’s not over yet
Once Vikram successfully lands on the moon, it will deploy its payload — CHASTE, RAMBHA and ILSA. In another four hours, around 5:30am, it will deploy Chandrayaan 2’s rover — Pragyaan — to roam free on the Moon’s South Pole.
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