The ISRO is getting ready to launch India’s second moon mission Chandrayaan-2 by early 2019. Though it was originally planned to launch by end of this year, it was delayed to January-March, 2019, as the design was changed to enable it land on the lunar surface.
ISRO Chairman K Sivan said that they have now fixed the date targeting to launch the mission as January 3. However, he said that is an open window and it may go up to March also. According to him, the reason for postponing the mission was that there were certain important changes made in the design so that it could easily land on the lunar surface.
Asked why the weight of Chandrayaan-2 was increased by 600 kg, he said ISRO noticed during experiments that after the moon lander was ejected, the satellite would shake. So they decided that the design modification was required for landing and mass has to be increased.