Context

• The Chandrayaan-3 lander has successfully completed the crucial EMI-EMC (Electro – Magnetic Interference/ Electro – Magnetic Compatibility) test.

Chandrayaan 3 mission

• Chandrayaan-3 is India’s third moon mission.
• It is a follow-on mission to Chandrayaan-2
• The mission aims to demonstrate end-to-end capability in safe landing and roving on the lunar surface. 
• The mission is slated to be launched by Launch Vehicle Mark 3 (LMV3) or GSLV Mk III from the Satish Dhawan Space Centre at Sriharikota.
• Chandrayaan-3 interplanetary mission has three major modules: the Propulsion module, Lander module, and Rover. 
•  It will not include any orbiter like Chandrayaan 2.
• The rover of this spacecraft will communicate to earth via an orbiter taken from Chandrayaan 2.
• The propulsion module will carry the lander and rover configuration till 100km lunar orbit. 
• The propulsion module has Spectro-polarimetry of HAbitable Planet Earth (SHAPE) payload to study the spectral and polarimetric measurements of Earth from lunar orbit.
• This exploration will not limit to the surface but aim to study the sub-surface and exosphere.

What is EMI-EMC Test

• The EMI-EMC test is conducted for satellite missions to ensure the functionality of the satellite subsystems in the space environment and their compatibility with the expected electromagnetic levels.

https://www.thehindu.com/sci-tech/science/isros-chandrayaan-3-successfully-completes-crucial-test/article66528962.ece