Indian Space Research Organization (ISRO) Chandrayaan-2 is ready for the country’s first moon lander and diver mission. Chandrayaan-2 is only a month away.
The mission will be done by Geosynchronous Satellite Launch Vehicle Mark III (GSLV MK III) rocket, which is designed to launch satellites in the geostationary orbit. Takeoff of ISRO has been scheduled for July 15, while the launch window is open between July 9 and July 16.
Chandrayaan-2 is the second moon mission of India after Chandrayaan-1 and it has been divided into three modules like Orbiter Lander (Vikram) and Rover (Pragyan). The orbiter and lander module was adjusted inside the GSLV MK-III launch vehicle. Which was mechanically interfused and stacked simultaneously as an integrated module. The rover is placed inside the lender.
After entering the Earth orbit by GSLV MK-III, the integrated module of orbiter and lander will reach the orbit of the orbit using the orbiter propulsion module. Later, Lander Chandra will participate with the orbiter and soft land at the proposed site near the South Pole. Which is scheduled for September 6. Next, the rover will use some scientific experiments on the moon surface.
The rover will be rolled out on the same day. ISRO chairman K. Sivan said, “It going to land at a specific location wherever no one has gone before.”
He called it the most complex mission ever undertaken by ISRO. Chandrayaan-2 carries the satellite a lander called Vikram and a rover, Pragyan. On reaching the moon. The lander would separate from the orbiter and soft-land at a pre-determined site close to the lunar south pole. The rover would roll out for finishing up scientific experiments on the satellite surface.
Chandrayaan-2 would have 13 payloads and one passive experiment from American space agency Nasa to measure the distance between the moon and earth. Processors used will ‘revolutionize future’
Isro chairman Dr. K. Sivan said the PSLV rocket that hoisted a spy satellite into space had two advanced payloads including the Vikram processor developed by Semi-Conductor Laboratory (SCL) Chandigarh.
The processor’s main application is within the realization of onboard computers for navigation, guidance, and control processing in-flight applications. It also carried a low-cost MEMS-based Inertial Navigation System built at the Isro Inertial Systems Unit Thiruvananthapuram.
MEMS stands for Micro-Electro-Mechanical Systems. Dr. Sivan said Risat-2B had a “very advanced new technology”, a 3.6-meter unfurlable radial rib antenna.
“This is going to be the technology of the future,” he said. “It goes to revolutionize our future launch vehicle missions.”
Following that, Isro will launch a cartography satellite to take high-resolution pictures, and will also use its new rocket. The Small Satellite Launch Vehicle (SSLV).
Isro will also be launching Risat-2BR1. Another radar imaging satellite, and two more defense satellites in July or August with the SSLV.
There is an increased demand for satellites from strategic sectors. About six to seven satellites are planned to be built, a senior official of Isro said.
Meanwhile, ISRO has highlighted the challenges of landing the Moon in this way:
The distance of the Moon is approximately 3.844 million KM. While navigating such a long distance, ensuring trajectory accuracy creates many challenges. Because the trajectory is affected by the uneven gravity of the Earth and the Moon. The gravitational pull of other celestial objects. The solar radiation pressure and the actual orbital motion of the Moon.
Intensive space communication
Due to the large distance from Earth and the limited power, onboard radio signals used for communication are weak with heavy background noise. Thich must be raised by large antennas.
Trans Lunar Injection and Lunar Capture
Chandrayaan 2 will show a series of TLI burns to increase your apology gradually to reach the area around the orbit of the Moon. Since the location of the Moon is constantly changing due to orbital motion. There is a sufficient prediction to be predicted in advance with the accuracy of the high level of the Moon 2 and the Moon’s path.
The moon gravity is ‘lumpy’ due to the distribution of uneven mass beneath its surface. It affects the orbit of the spacecraft. To keep orbital electronics safe, accurate knowledge of the thermal environment at orbit height is essential.
Soft landing on the moon
The variation in local gravity is to be divided into the lunar anterior trajectory. Onboard NGC and Propulsion system will have to work together for a successful landing simultaneously. Then the landing site landscape features should not be the result of the shadow area.
The firing of the onboard engine near the surface of the moon leads to the flow of hot gases along with dust. Moondust is minuscule and the harsh is barbed and the toothed. Its negative charge affixed it to most surfaces, causing disruption in deployment mechanism, solar panel display, and NGC sensor display.
Excessive temperature and vacuum
A lunar lasts for 14 days or days of day or night. This changes the variations of the surface. The ambient pressure of the lunar surface is a hard vacuum. This creates a very unfavorable environment for lunar and rover operations on the moon surface.