Update on India’s Chandrayaan-2 moon mission

earthsky.org | 8/13/2019 | Sharmila Kuthunur
doona07 (Posted by) Level 3
Click For Photo: https://en.es-static.us/upl/2019/08/slide4-300x225.png

Animation of Hohmann transfer – an elliptical orbit used to transfer a spacecraft between two circular orbits around the same body in the same plane. While this GIF shows the Hohmann transfer for NASA’s InSight spacecraft, Chandrayaan-2 shall be following a similar approach on August 14, 2019. From its orbit around the Earth, the spacecraft will enter an elliptical orbit that takes it nearer to the moon. Once there, a series of breaking mechanisms will slow it down for lunar capture. Image via Wikipedia.

With all of the five Earth-bound maneuvers successfully completed as planned, India’s Chandrayaan-2 will be shifting trajectories tomorrow (August 14, 2019). The Lunar Transfer Injection (LTI), scheduled between 0300 to 0400 hours (IST) will glide the spacecraft into a highly elliptical orbit precisely aimed to target the moon.

Chandrayaan-2 - Space - Research - Organisation - ISRO

Chandrayaan-2 was launched by the Indian Space Research Organisation (ISRO) on July 22, 2019. The 8,488-pound (3850-kg) spacecraft was subjected to multiple orbit raising maneuvers that increased its altitude and decreased the influence of Earth’s gravity on the spacecraft. The fifth and final maneuver was performed on August 6, 2019. According to a statement from ISRO:

Fifth earth bound orbit raising maneuver for Chandrayaan-2 spacecraft has been performed successfully today (August 6, 2019) at 1504 hours (IST) as planned, using the onboard propulsion system for a firing duration of 1041 seconds. The orbit achieved is 276 x 14,2975 km. All spacecraft parameters are normal.

Maneuver - Trans - Lunar - Insertion - TLI

The next maneuver is Trans Lunar Insertion (TLI), which is scheduled on August 14, 2019, between 0300 – 0400 hrs (IST).

On August 14, the spacecraft’s propulsion systems will fire...
(Excerpt) Read more at: earthsky.org
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