Details you should know about Chandrayaan 2
Chandrayaan-2 was one of India's most ambitious lunar missions and an important milestone in the country's space exploration journey. Launched by the Indian Space Research Organisation (ISRO) in July 2019, the mission was designed to study the Moon's surface, investigate its composition and explore the region around the lunar south pole.
India had already made history with Chandrayaan-1, which was launched in 2008 and helped provide important evidence related to water molecules on the Moon. Chandrayaan-2 was planned as a much more complex mission because it included an orbiter, lander and rover.
Here are the important Chandrayaan-2 details, components, objectives and scientific instruments you should know about this historic Indian lunar mission.
What is Chandrayaan-2?
Chandrayaan-2 was India's second mission to the Moon, developed and launched by ISRO. The mission was designed to study the lunar surface in greater detail and demonstrate India's ability to perform a controlled landing and operate a rover on the Moon.
The spacecraft was launched on July 22, 2019, from the Satish Dhawan Space Centre in Sriharikota, Andhra Pradesh, using the Geosynchronous Satellite Launch Vehicle Mark III (GSLV Mk III).
The mission consisted of three major components:
- Orbiter – designed to remain around the Moon and conduct scientific observations.
- Vikram Lander – designed to make a soft landing on the lunar surface.
- Pragyan Rover – designed to move across the lunar surface and conduct experiments.
The combination of these three components made Chandrayaan-2 considerably more ambitious than India's first lunar mission.
Chandrayaan-2 Launch and Mission Journey
After its launch, Chandrayaan-2 did not travel directly to the Moon. The spacecraft performed a series of increasingly higher Earth-bound maneuvers to build up the momentum required to travel toward the Moon.
Once the spacecraft entered the Moon's sphere of influence, it performed lunar-orbit maneuvers. The spacecraft was eventually placed into an orbit around the Moon, where the orbiter and lander continued their respective mission operations.
The planned landing sequence involved the Vikram lander separating from the orbiter and descending toward the lunar surface. The Pragyan rover was designed to be deployed from Vikram after a successful landing.
Three Main Components of Chandrayaan-2
1. Chandrayaan-2 Orbiter
The Chandrayaan-2 Orbiter was designed to observe and map the Moon from orbit. It carried several scientific instruments that could study the lunar surface, mineral composition and the presence of water-related signatures.
The orbiter was also important because it could continue scientific observations even after the planned surface operations of the lander and rover were completed.
One of its important functions was to produce detailed observations of the lunar surface. Its high-resolution imaging capability was also intended to help scientists understand the terrain and identify important geological features.
2. Vikram Lander
The Vikram lander was named after Dr. Vikram Sarabhai, widely regarded as the father of India's space programme. Its primary purpose was to perform a controlled descent and soft landing near the Moon's south polar region.
The lander carried scientific instruments and was designed to communicate with both the rover and the mission's ground-control infrastructure.
Although the planned soft landing was not completed successfully, the mission still provided valuable scientific data through the orbiter and became an important learning experience for India's future lunar missions.
3. Pragyan Rover
Pragyan was the small lunar rover designed to travel on the Moon's surface after being deployed from the Vikram lander.
The rover was designed to move over the lunar terrain and perform scientific measurements. Its planned experiments were intended to help scientists understand the composition of the lunar surface near the landing region.
What Were the Main Objectives of Chandrayaan-2?
Chandrayaan-2 had several scientific and technological objectives. One of the most important was to improve India's understanding of the Moon's surface and its geological characteristics.
The mission was also designed to investigate the lunar south polar region, an area of particular scientific interest because permanently shadowed regions may preserve water ice and other materials.
Another major objective was technological. India wanted to demonstrate its capability to perform a controlled lunar landing and operate a rover on another celestial body.
The mission therefore combined scientific exploration with advanced space technology.
Important Scientific Instruments on Chandrayaan-2
The Chandrayaan-2 orbiter carried several scientific instruments designed for different types of lunar observations.
Among them was the Terrain Mapping Camera-2 (TMC-2), which was intended to capture images of the lunar surface and help scientists create three-dimensional maps of the Moon.
Another important instrument was the Dual Frequency Synthetic Aperture Radar (DFSAR). It was designed to study the lunar surface and investigate possible water-ice deposits, particularly in permanently shadowed regions.
The orbiter also carried instruments designed to study the Moon's mineral composition, elemental composition and exosphere. Together, these instruments allowed scientists to examine the Moon from several different scientific perspectives.
Why Was the Lunar South Pole Important?
The lunar south polar region was one of the most interesting targets of Chandrayaan-2. Unlike many parts of the Moon, some areas near the poles remain permanently shadowed because sunlight does not reach them directly.
These extremely cold regions may preserve water ice and other volatile materials for long periods. Studying them can help scientists understand the history of the Moon and may also be useful for future lunar exploration.
India's interest in lunar exploration continued with later missions, making the Chandrayaan programme an important part of the country's growing space capabilities.
What Happened During the Chandrayaan-2 Landing?
The Vikram lander began its planned descent toward the lunar surface during the early hours of September 7, 2019. The descent proceeded according to the planned sequence for much of the landing process.
However, communication with the lander was lost shortly before the expected touchdown. As a result, Vikram did not complete the planned soft landing and the Pragyan rover could not begin its intended surface mission.
Despite the landing setback, the Chandrayaan-2 mission was not a complete failure. The orbiter remained operational and continued to provide valuable scientific observations of the Moon.
Chandrayaan-2 Orbiter and Its Long-Term Contribution
The orbiter became an important source of scientific information after the landing attempt. Its instruments continued observing the lunar surface and gathering data for researchers.
High-resolution images and radar observations helped scientists study lunar terrain, craters, minerals and possible water-ice deposits.
The experience gained from Chandrayaan-2 also helped ISRO improve its understanding of the challenges involved in lunar landing operations.
India's broader technological development has increasingly included advanced applications of satellites, remote sensing and space technology. This wider field is also connected to areas such as satellite technology in modern agriculture, where space-based data can support mapping, monitoring and precision farming.
Chandrayaan-2 vs Chandrayaan-1
Chandrayaan-1 and Chandrayaan-2 were both important Indian lunar missions, but their objectives and complexity were different.
- Chandrayaan-1: India's first lunar mission, launched in 2008, primarily focused on studying and mapping the Moon from orbit.
- Chandrayaan-2: India's second lunar mission, launched in 2019, was designed to combine an orbiter with a lander and rover.
- Landing technology: Chandrayaan-2 attempted to demonstrate India's ability to perform a controlled soft landing on the Moon.
- Surface exploration: Chandrayaan-2 planned to use the Pragyan rover for direct scientific measurements on the lunar surface.
These missions formed important stages in India's continuing lunar exploration programme.
Why Is Chandrayaan-2 Important for India?
Chandrayaan-2 was important not only because of its scientific goals but also because of the technological experience it provided. Lunar missions require extremely accurate navigation, communication, propulsion, landing and autonomous-control systems.
The lessons learned from Chandrayaan-2 became valuable for India's subsequent efforts to develop more reliable lunar landing capabilities.
Space exploration also inspires interest in science and technology among students and young researchers. India's achievements in space are part of a much broader history of scientific innovation, including the contributions of scientists such as Sir C. V. Raman.
Interesting Facts About Chandrayaan-2
- Chandrayaan-2 was India's second lunar exploration mission.
- The mission was launched on July 22, 2019.
- It was launched using the GSLV Mk III launch vehicle.
- The mission included an orbiter, Vikram lander and Pragyan rover.
- Vikram was named after Dr. Vikram Sarabhai.
- Pragyan was designed to explore the lunar surface.
- The mission targeted the scientifically important lunar south polar region.
- The Vikram lander lost communication shortly before its planned touchdown.
- The Chandrayaan-2 orbiter continued its scientific mission around the Moon.
- The mission provided valuable experience for India's future lunar landing efforts.
Chandrayaan-2: Frequently Asked Questions
When was Chandrayaan-2 launched?
Chandrayaan-2 was launched on July 22, 2019, from the Satish Dhawan Space Centre in Sriharikota.
Who launched Chandrayaan-2?
Chandrayaan-2 was developed and launched by the Indian Space Research Organisation (ISRO).
What were the three components of Chandrayaan-2?
The three main components were the orbiter, Vikram lander and Pragyan rover.
Did Chandrayaan-2 successfully land on the Moon?
The Vikram lander did not complete its planned soft landing after communication was lost during the final phase of descent. However, the Chandrayaan-2 orbiter continued operating and conducting scientific observations.
Why was the Moon's south pole important to Chandrayaan-2?
The south polar region contains permanently shadowed areas that may preserve water ice and other volatile materials, making the region scientifically important for lunar research.
Conclusion
Chandrayaan-2 remains an important chapter in India's space exploration history. Although the Vikram lander did not achieve the planned soft landing, the mission's orbiter continued to contribute valuable scientific observations.
More importantly, the mission provided ISRO with practical experience in lunar navigation, landing technology and surface exploration. The knowledge gained from Chandrayaan-2 helped strengthen India's ambitions for future lunar missions and demonstrated the country's growing capabilities in space science and technology.
