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Update on India's Moon Mission Chandrayaan-2 | space



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  Orbit around Earth and orbit around the Moon.

Animation of the Hohmann transfer – an elliptical orbit that moves a spaceship between two orbits around the same body in the same plane. While this GIF shows the Hohmann transfer for NASA's InSight spacecraft, Chandrayaan-2 will follow a similar approach on August 1

4, 2019. From its Earth orbit, the spaceship will enter an elliptical orbit that will bring it closer to the Moon. Once there, a number of brake mechanisms slow down the moon detection. Picture via Wikipedia.

After successfully completing all five earthbound maneuvers as planned, Indian spaceship Chandrayaan-2 will postpone its trajectory tomorrow (14 August 2019). The Lunar Transfer Injection (LTI), which is scheduled between 3:00 and 4:00 IST (21:30 UTC, 13 August), slides the spacecraft into a highly elliptical orbit, which is precisely aligned with the moon.

Chandrayaan-2 was launched by the Indian Space Research Organization (ISRO) on July 22, 2019. The 8.488 pound (3850 kg) spacecraft was subjected to several orbital lifting maneuvers that increased its altitude and the impact of Earth's gravity reduced to the spaceship. The fifth and final maneuver was performed on August 6, 2019. According to an ISRO statement:

The fifth Earthbound orbital lift maneuver for Chandrayaan 2 spacecraft was successfully completed today (6 August 2019) at 1504 hours (IST) as planned with on-board propulsion for a 1041 second shot duration. The reached orbit is 276 x 14.2975 km. All spacecraft parameters are normal.

The next maneuver is the Trans-Lunar Insertion (TLI), which will be held on August 14, 2019, between 3:00 and 4:00 (IST).

On Aug. 14, the spacecraft's propulsion systems will be activated fire again at some point in its orbit around the Earth. This combustion is timed precisely so that the thrust for Chandrayaan-2 does not direct the spaceship to where the moon is at the time of burning, but to where it will be in the near future. This calculation must be extremely precise, as too great a fire can throw the spacecraft over the lunar orbit and a fire that does not last long enough can not reach the moon at all.

A successful LTI will capture Chandrayaan-2 near the Moon and enter the Moon orbit on August 20, 2019. 48 days after takeoff, the spaceship is expected to land softly on the south pole of the Moon on 7 September.

Here are some of the first pictures taken by Chandrayaan-2's Vikram Lander:

  Part of the Earth with clouds, sea and land mass.

photo via ISRO

  Part of the earth with clouds, sea and landmass.

photo via ISRO

  Part of the earth with clouds, sea and landmass.

photo via ISRO

episode of the Chandrayaan 2 mission on Facebook and Twitter

Conclusion: Chandrayaan-2 is still circling the earth. On the 14th of August it is directed to a path to the moon.

Via ISRO

  Sharmila Kuthunur


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