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Chandrayaan-3 Finishes Testing - Launch Set For 13th July
India's third mission to the moon, Chandrayaan-3, has completed its testing, and now a launch date of the 13th of July has been set for the mission's launch.
ISRO Chairman S Somnath yesterday informed the press that the space agency had completed testing of the spacecraft and that it was now fully integrated. He added that the craft had been mated to the rocket compartment.
Somnath also revealed the Chandrayaan-3 mission's window of opportunity for launch is the week between the 12th and the 18th of July. India's space agency later informed that the launch had been set for 13th July, 2:30p.m. from the Satish Dhawan Space Center in Sriharikota.
Chandrayaan-3 will head to the moon with the help of the Launch Vehicle Mark III (LVM3) rocket which was used to send the previous Chandrayaan mission to the moon.The Chandrayaan-3 spacecraft features three modules - the propulsion module, a lander and a rover.
The propulsion module will carry the landing module and rover from launch injection to the final lunar 100 km circular polar orbit, post which it will deploy another scientific module.
The lander module will conduct a soft landing on the moon, which is where Chandrayaan-2 failed. After landing, the lander will deploy the rover. Both the lander and rover feature scientific payloads to carry out experiments on the lunar surface.
Chandrayaan 3 has three mission objectives:
- To demonstrate a Safe and Soft Landing on Lunar Surface
- To demonstrate rover roving on the moon and
- To conduct in-situ scientific experiments.
The Chandrayaan-3 mission's launch vehicle of choice will be the LVM3, which was earlier known as the Geosynchronous Satellite Launch Vehicle Mark III (GSLV MKIII). Chandrayaan-3 will be the second moon mission to use this rocket, as Chandrayaan-1 was sent to space by the Polar Satellite Launch Vehicle (PSLV) XL rocket.
The LVM3 is a three-stage rocket that stands 43.43 metres tall and weighs 640,000 kilogrammes. The space launch vehicle can carry a payload of 4,000 kilogrammes up to a geostationary transfer orbit.
The three stages consist of the two solid rocket boosters mounted to the sides of the main rocket. Each booster runs on 207 tonnes of hydroxyl-terminated polybutadiene (HTPB) based propellant and produces a peak thrust of 5,150kN each.
The second stage consists of two liquid-fuelled Vikas-2 rocket engines that run on a combination of unsymmetrical dimethylhydrazine (UDMH) and nitrogen tetroxide (N2O4) and provide a total of 1,532kN of thrust.
The final stage is propelled by the CE-20 cryogenic rocket engine that runs on 28 metric tonnes of propellant LOX and LH2, pressurized by helium stored in submerged bottles. The CE-20 has an operating thrust range between 180kN to 220kN.
Thoughts About The Chandrayaan-3
Chandrayaan-3 will mark the third time that India will be heading to the moon. Chandrayaan-3's main focus will be to do what its predecessor failed to do, land and roam around on the moon and conduct experiments on the lunar surface.
