Chandrayaan 3 lander successfully completed key test

Subject : Science and technology

Section: Space technology

Concept :

According to the Indian Space Research Organisation (ISRO), the lander for the Chandrayaan-3 mission successfully completed the crucial EMI-EMC (Electro – Magnetic Interference/ Electro – Magnetic Compatibility) test at the U.R. Rao Satellite Centre, Bengaluru.

Chandrayaan-3 Lander:

The Chandrayaan-3 mission is slated to be launched later this year by the GSLV MkIII (Launch Vehicle Mark 3 – LMV3) from the Satish Dhawan Space Centre at Sriharikota.
According to the space agency, the EMI-EMC (Electro – Magnetic Interference/ Electro – Magnetic Compatibility) 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.
This test is a major milestone in the realisation of the satellites, as the mission’s complexity calls for establishing radio-frequency (RF) communication links between the modules.

Chandrayaan 3 Mission

ISRO has announced Chandrayaan-3, a soft-landing mission, after the failure of Vikram Lander under Chandrayaan 2.
Its moon Lander will be the first to land in southern hemisphere of moon surface.
While the Orbiter of Chandrayaan 2 is in the lunar orbit, the Lander and Rover failed after the lander crash-landed on lunar surface.
ISRO is planning to land the Chandrayaan 3 lander at the same location as the Chandrayaan 2 – the lunar South Pole, which is a singularly promising part of the moon’s surface.
Unlike its predecessor, Chandrayaan-3 will not have an orbiter.
Chandrayaan-3 interplanetary mission has three major modules: the Propulsion module, Lander module, and Rover.
Propulsion module:
It has Spectro-polarimetry of HAbitable Planet Earth (SHAPE) payload to study the spectral and polarimetric measurements of Earth from lunar orbit.
Lander payloads:
Chandra’s Surface Thermophysical Experiment (ChaSTE) to measure the thermal conductivity and temperature;
Instrument for Lunar Seismic Activity (ILSA) for measuring the seismicity around the landing site;
Langmuir Probe (LP) to estimate the plasma density and its variations, etc.
Rover payloads:
Alpha Particle X-ray Spectrometer (APXS) and Laser Induced Breakdown Spectroscope (LIBS) for deriving the elemental composition in the vicinity of the landing site.