Know how Chandrayaan-3 differs from the ill-fated Luna-25

Russian Spacecraft failed in its attempt to land on the South Pole of the Moon and crashed on the lunar surface on August 20.

| Updated on: Aug 22 2023, 21:14 IST
Chandrayaan-3 Moon mission: 5 facts to know
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1/7 The Chandrayaan-3 mission was launched on July 14 from Sri Harikota, India's main spaceport in  Andhra Pradesh. From the day of its launch, Chandrayaan-3  has looped through progressively wider-ranging orbits of Earth. It then transferred to a lunar orbit and emerged as a focus of national pride. Our Moon mission become a global interest after Russia's Moon mission Luna-25  failed to land on the moon. (PTI)
2/7 The landing of  Chandrayaan-3 is aimed at the lunar south pole. Lunar south pole is a region that may have water ice or frozen water. It can be an abundant source of oxygen, fuel, and water that can be extremely important for future moon missions. (AFP)
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3/7 Chandrayaan-3 will be functional for two weeks if it lands successfully on the lunar surface. It will run various experiments which will include a spectrometer analysis of the mineral composition of the surface of the moon. (via REUTERS)
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4/7 The lander of the Chandrayaan-3 mission is about 2m tall. Its mass is said to be about  1,700 kg (3,747.86 lb) which can deploy a small 26 Kg lunar rover. (HT_PRINT)
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5/7 For the smooth landing of the  Chandrayaan-3 on the south pole of the Moon, rough terrain can be a great hurdle. However, adjustments have been made by ISRO scientists that will help Chandrayaan-3 to stick its landing. (ISRO)
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6/7 The adjustments include a system to broaden the potential landing zone and the lander has been equipped with more fuel and sturdier legs to be more effective. (REUTERS)
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7/7 If this mission becomes successful, it would make India the fourth country to successfully land on the moon, after the former USSR, the United States, and China, and India will be able to mark its emergence as a strong space power. ISRO will telecast the planned Chandrayaan-3  landing starting from 1720 IST (1150 GMT) on August 23, 2023. (ISRO twitter)
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For a start, Chandrayaan- 3 mission is way less expensive than Russia’s Luna-25 mission. The differences multiply on most other parameters too. (AFP)

Various countries are in a quest to reach the moon and that includes India and Russia. Notably, while India is on the verge of fulfilling its mission to Land on the Moon through the Chandrayaan- 3 spacecraft, Russia's ill-fated spacecraft Luna-25 crashed on August 20. Let's take a look at how both of these Lunar Missions are different from each other.


As we know, Chandrayaan-3 has 3 main objectives, first to demonstrate capabilities to effect a Safe and Soft Landing on the Lunar Surface, to demonstrate a Rover roving on the moon, and to conduct in-situ scientific experiments. Chandrayaan-3 lander is expected to perform a soft landing on the South Pole of the Moon on August 23 at 18:04 PM IST.

On the other hand, Luna-25 had different objectives. According to NASA, it aimed to investigate the makeup of the lunar surface material. The other objective was to examine the plasma and dust constituents that are present within the Moon's polar exosphere.

Total Expenditure

While Russia's Luna-25 mission was said to cost for Rs. 1600 crore, India's Chandrayaan-3 is way less expensive. According to ISRO, the approved cost for this mission is Rs. 250 crore which includes the cost of the rover and the propulsion module of the Chandrayaan-3 Mission. The remaining cost of the launch service of Chandrayaan-3 is Rs. 365 crore, which makes it a total budget of Rs. 615 crore. Chandrayaan-3 is also less costly than its predecessors i.e. Chandrayaan-1 and Chandrayaan-2. The total cost of the Chandrayaan-2 mission was 978 crore.

Currently, India is the only player left in the journey of Moon exploration. This will help India to embark on a great achievement in the field of space exploration and if this Mission succeeds, India will become the 4th country in the world to execute a successful Moon mission.

The Landers

The Luna-25 lander has a dry mass of about 800 kg, the lander has a 1.6 meter-long Lunar Robotic Arm (LRA, or Lunar Manipulator Complex) to remove and collect the surface regolith to depths of 20 to 30 cm. The arm has four degrees of freedom/rotations: azimuthal, shoulder, elbow, and wrist/scoop. Total mass of the LRA is 5.5 kg, and it uses 30 W nominal, and 50 W maximum power.

The Vikram lander has a mass of 1749.86 kg, including 26 kg for the rover, and can generate 738 W using side-mounted solar panels. The lander has a number of sensors to ensure a safe touchdown and a suite of cameras for hazard avoidance and positional knowledge.

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First Published Date: 22 Aug, 21:14 IST