Chandrayaan-3 : India's Third Lunar Mission
Chandrayaan-3: India's Third Lunar Mission
India is gearing up for its third lunar mission, Chandrayaan-3, which is expected to launch in 2022. Chandrayaan-3 is a follow-up mission to Chandrayaan-2, which attempted to land a rover on the south pole of the moon in 2019, but failed due to a technical glitch.
Chandrayaan-3 will consist of a lander and a rover, but not an orbiter, as Chandrayaan-2's orbiter is still functioning and can relay data from the new mission. The lander and rover will carry scientific instruments to study the lunar surface, especially the south pole region, which is of interest for its potential water ice deposits and other resources.
The main objectives of Chandrayaan-3 are to demonstrate India's capability to soft-land on the moon and to operate a robotic rover on the lunar terrain. The mission will also conduct experiments to measure the seismic activity, thermal properties, and elemental composition of the moon.
Chandrayaan-3 is part of India's ambitious space program, which aims to explore the solar system and beyond with indigenous technology and expertise. India has already achieved several milestones in space exploration, such as launching more than 100 satellites in a single rocket, sending an orbiter to Mars, and launching a human spaceflight program.
Chandrayaan-3 will be another step towards India's vision of becoming a leading space-faring nation and contributing to the global scientific knowledge and understanding of the moon.
When is Chandrayaan-3 launching?
According to the latest update from the Indian Space Research Organisation (ISRO), Chandrayaan-3 is expected to launch in the first half of 2022, after completing all the necessary tests and reviews. The launch window is between February and April 2022, depending on the availability of the launch vehicle and the lunar conditions.
Chandrayaan-3 will be a repeat of Chandrayaan-2, which failed to soft-land on the Moon in September 2019, due to a loss of communication with the lander Vikram. Chandrayaan-3 will have a similar configuration as Chandrayaan-2, with a lander and a rover, but no orbiter. The orbiter of Chandrayaan-2 is still functioning and will provide support to Chandrayaan-3.
Chandrayaan-3 is an important milestone for India's space program, as it will demonstrate its capability to land on the lunar surface and conduct scientific experiments. The mission will also contribute to the global understanding of the Moon and its resources, which could pave the way for future human exploration and settlement.
How will Chandrayaan-3 land on Moon?
1. Launch and orbit insertion: Chandrayaan-3 will consist of a lander and a rover, which will be launched by a GSLV Mk III rocket from the Satish Dhawan Space Centre in Sriharikota. The rocket will place the lander-rover module into a highly elliptical orbit around the Earth, which will gradually be raised by firing thrusters until it reaches the vicinity of the Moon.
2. Lunar transfer and capture: The lander-rover module will then separate from the rocket and perform a series of maneuvers to enter the lunar transfer trajectory, which will take it closer to the Moon. After about five days, the module will be captured by the Moon's gravity and enter a circular orbit around it at an altitude of about 100 km.
3. Deorbit and descent: The lander-rover module will then lower its orbit by firing thrusters until it reaches an altitude of about 30 km. At this point, it will initiate the deorbit burn, which will reduce its horizontal velocity and make it fall towards the lunar surface. The module will use its onboard sensors and cameras to identify a suitable landing site near the south pole, avoiding craters and boulders.
4. Powered landing and touchdown: The module will then fire its four main engines to slow down its vertical descent and hover over the landing site. It will use its attitude control thrusters to maintain its orientation and stability. The module will then gradually lower itself until it touches down softly on the lunar soil, deploying its landing legs and shock absorbers to cushion the impact.
5. Rover deployment and exploration: After confirming the successful landing, the module will deploy its solar panels and antennas to establish communication with Earth. It will then release its rover, which will roll out of a ramp and start exploring the lunar terrain. The rover will use its cameras, spectrometers, and other instruments to study the mineralogy, geology, and surface temperature of the Moon's south pole region, which is believed to contain water ice and other resources.
What is the cost of Chandrayaan-3?
Chandrayaan-3 is India's third lunar exploration mission, which is planned to launch in July 2023. It will consist of a lander and a rover that will attempt to soft-land on the lunar south pole, where Chandrayaan-2 failed in 2019. Chandrayaan-3 will not have an orbiter, but its propulsion module will act as a relay satellite and also carry a payload to study the Earth from the lunar orbit.
The cost of Chandrayaan-3 is estimated to be over Rs 600 crores, excluding the launch vehicle, which will cost another Rs 350 crores. This is lower than the cost of Chandrayaan-2, which was Rs 960 crores, as some of the hardware and software from the previous mission can be reused. The mission is funded by the Government of India and executed by the Indian Space Research Organisation (ISRO).
The main objective of Chandrayaan-3 is to demonstrate India's capability to soft-land on the Moon and operate a robotic rover on the surface. The mission will also explore the lunar south pole region, which has craters that are cold traps and may contain water ice and other resources. The mission will also contribute to the scientific understanding of the Moon's origin and evolution.
Chandrayaan-3 is a precursor to the Lunar Polar Exploration Mission, which is a joint mission between India and Japan, scheduled for 2025. The joint mission will aim to collect samples from the lunar surface and test technologies for surviving the lunar night.
How does Chandrayaan-3 differ from Chandrayaan-2?
Chandrayaan-3 and Chandrayaan-2 are both lunar exploration missions by India, but they have some differences. The main difference is that Chandrayaan-3 will not have an orbiter, while Chandrayaan-2 had one. The orbiter of Chandrayaan-2 is still functioning and orbiting the Moon, providing valuable data. Chandrayaan-3 will use its propulsion module as a relay satellite instead, and also carry a payload to study the Earth from the lunar orbit.
Another difference is that Chandrayaan-3 will be cheaper than Chandrayaan-2, as some of the hardware and software from the previous mission can be reused. The cost of Chandrayaan-3 is estimated to be over Rs 600 crores, excluding the launch vehicle, which will cost another Rs 350 crores. The cost of Chandrayaan-2 was Rs 960 crores.
The third difference is that Chandrayaan-3 will have a different landing site than Chandrayaan-2. Chandrayaan-2 attempted to land near the south pole of the Moon, but failed due to a software glitch. Chandrayaan-3 will try to land at a different location near the south pole, which has been identified as a potential site for water ice and other resources.
Both missions have the same objective of demonstrating India's capability to soft-land on the Moon and operate a robotic rover on the surface. Both missions will also contribute to the scientific understanding of the Moon's origin and evolution. Chandrayaan-3 is a precursor to the Lunar Polar Exploration Mission, which is a joint mission between India and Japan, scheduled for 2025. The joint mission will aim to collect samples from the lunar surface and test technologies for surviving the lunar night.
What are the scientific objectives?
If you are interested in pursuing a career in science, you might wonder what are the scientific objectives that guide the research and discovery process. Scientific objectives are specific, measurable, achievable, relevant and time-bound goals that scientists set for themselves and their projects. They help to define the purpose, scope, direction and expected outcomes of scientific inquiry.
Some examples of scientific objectives are:
- To test a hypothesis or a theory using experiments or observations
- To explore a new phenomenon or a new domain of knowledge
- To develop a new method or a new technology for solving a problem
- To compare and contrast different models or approaches
- To evaluate the effectiveness or the impact of an intervention or a policy
- To synthesize and integrate existing information from different sources
- To communicate and disseminate scientific findings and implications
Scientific objectives are not static or fixed. They can change and evolve as the research progresses and new information emerges. They can also vary depending on the discipline, the topic, the context and the audience of the research. However, they should always be clear, concise, realistic and aligned with the overall aim and vision of the research.
Scientific objectives are important for several reasons. They help to:
- Focus and organize the research activities and resources
- Establish the criteria and indicators for measuring the progress and success of the research
- Communicate and justify the rationale and significance of the research to others
- Enhance the quality and credibility of the research outputs and outcomes
- Foster collaboration and coordination among different stakeholders involved in the research
In summary, scientific objectives are essential elements of any scientific endeavor. They provide direction, motivation and accountability for scientists and their projects. They also contribute to the advancement of science and society.
Launch date of Chandrayaan-3 or ISRO scientist name
Chandrayaan-3 is the third lunar exploration mission by the Indian Space Research Organisation (ISRO). It is expected to launch in 2024 and will consist of a lander and a rover that will attempt to soft-land on the Moon's south pole. The mission aims to study the lunar surface, mineralogy, topography, and atmosphere.
One of the scientists involved in the Chandrayaan-3 mission is Dr. Ritu Karidhal, who is the mission director and deputy operations director at ISRO. She has been working with ISRO since 1997 and has contributed to several other missions, such as Chandrayaan-1, Mars Orbiter Mission, and Chandrayaan-2. She is also known as the "Rocket Woman" of India for her achievements in space science.
Dr. Karidhal recently shared her experience of working on Chandrayaan-3 and how she balances her professional and personal life. She said that she usually works from 9 am to 6 pm at ISRO, but sometimes she has to stay longer or work on weekends depending on the project's progress. She also said that she tries to spend quality time with her family whenever she can, especially with her two children who are studying in school.
One of her favorite activities is to go for a lunch date with her husband, who is also a scientist at ISRO. They often go to a nearby restaurant or cafe and enjoy their food while talking about their work, hobbies, and plans. She said that this helps them to relax and bond as a couple. She also said that they sometimes invite their colleagues or friends to join them for lunch and have fun conversations.
Dr. Karidhal said that she is very excited about Chandrayaan-3 and hopes that it will be a successful mission. She said that she is proud to be a part of ISRO and its vision of exploring the Moon and beyond. She also said that she is grateful for the support and encouragement that she receives from her family, friends, and colleagues.
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