"Dream, Dream, Dream! Conduct these dreams into thoughts, and then transform them into action."
- Dr. A. P. J. Abdul Kalam
14 Jul 2023
In an exciting development, the Indian Space Research Organisation (ISRO) launched Chandrayaan-3 on Friday at 2.30 pm, marking the country's third attempt to conquer the moon.
Chandrayaan-3, derived from the Sanskrit term for "moon craft," blasted off from Sriharikota in Andhra Pradesh, carried by the powerful GSLV Mark 3 (LVM 3) heavy-lift launch vehicle. Comprising an orbiter, lander, and rover, the spacecraft embarked on an approximately month-long journey to reach the moon's surface by late August.
If successful, India will join an elite group of nations, including the United States, the Soviet Union, and China, that have achieved the feat of a soft landing on the moon. Following the footsteps of Chandrayaan-2, Chandrayaan-3 will undergo three crucial stages: Earth orbit maneuvers, Trans-lunar injection, and Lunar orbit maneuvers.
Once these stages are complete, the lander will separate from the propulsion module, assuming an orbit closer to the moon, and initiate the delicate process of soft landing. The spacecraft will execute a series of orbit maneuvers around the Earth, gradually increasing the distance from our planet before redirecting towards the moon.
Upon reaching the moon, Chandrayaan-3 will meticulously navigate through four lunar orbits, gradually approaching its target. Ultimately, it will establish a circular orbit at an altitude of 100 km x 100 km. The lander will then detach from the propulsion module, maneuvering as close as 30 km to the lunar surface to begin the much-anticipated soft landing procedure.
Chandrayaan-3's objectives encompass several crucial scientific endeavors. It will demonstrate safe and soft landing capabilities, facilitate rover exploration on the moon, and conduct in-situ scientific experiments. Additionally, the mission aims to gather valuable data on various aspects, such as the polarization of Earth's reflected light, ion and electron density near the moon's surface, temperature variations in the lunar polar region, and the presence of moonquakes.
The journey of Chandrayaan-3 from Earth to the moon is estimated to take approximately a month, with the anticipated landing on August 23. Once landed, the spacecraft will operate for approximately 14 Earth days, equivalent to one lunar day. With these ambitious objectives, Chandrayaan-3 reinforces India's commitment to advancing lunar exploration and unraveling the mysteries of our celestial neighbor.