It was eleven years ago Chandrayaan-1 made a confirmation about the presence of water on the lunar surface, and now this year, Chandrayaan-2 is landing on the moon, making India proud. The second Moon mission of India is all set to explore the uncharted south pole of the Moon and assist the scientists to comprehend the origin and evolution of the Moon. Chandrayaan-2 consists of a fully aboriginal Orbiter, Lander [Vikram] and Rover [Pragyan]. The Chandrayaan-2 six-wheeled Rover Pragyan is housed inside Vikram lander. The lander and the rover broke successfully from the Chandhrayaan-2 orbiter Monday afternoon, September 2 and began their own journey towards the Moon.

Chandrayaan-2 steps closer to the moon (Jagran Josh)

ISRO gave a statement, saying, “The health of Chandrayaan-2 is being constantly monitored from the Mission Operations Complex [MOX] at ISRO Telemetry, Tracking and Command Network [ISTRAC] in Bengaluru with complete support offered from Indian Deep Space Network [IDSN] antennas at Bylalu, near Bengaluru. All the systems of Chandrayaan 2 are perfectly healthy.”

Chandrayaan-2, India’s ambitious mission set to create history on Moon landing (Mint)

The Chairman of Indian Space Research Organisation, K Sivan addressed the media that the Chandrayaan-2 spacecraft will touch the land of Moon between 1.30 am and 2.30 am. The whole team of ISRO and the country are super-excited to stay awake to watch live the spacecraft’s smooth landing on Moon.

Main Highlights:-

  • September 7: After two de-orbit maneuvers, Vikram is expected to touch down on the lunar surface between 1.30 am and 2.30 am, specifically at 1.55 am. The rover will roll out between 5:30 am and 6:30 am on the early morning of September 7.
  • September 3: The next maneuver accomplished successfully on this date between 8.45 am and 9.45 am. The two deorbit manoeuvres of Vikram were prepared for its landing in the south polar region of the Moon.

  • September 2: Vikram the lander separates from the orbiter successfully in Moon’s circular orbit at 13:15 hrs IST, thus pushing India’s Chandrayaan-2 mission into its last and most crucial leg – a soft, controlled landing on the Moon.
  • Further, Isro carried out another flawless operation to separate the landing module [Vikram and Pragyan] from the orbiter, and all the health parameters of both the orbiter – which will now circle the Moon alone for at least a year – and the landing module were said to be normal. The separation command was executed by the onboard systems autonomously after Isro mission control had loaded the commands on this same day before.

  • September 1: The final and fifth Lunar bound orbit maneuver for Chandrayaan-2 spacecraft performed successfully beginning at 18:21 hrs IST, utilizing the onboard propulsion system with a duration of maneuver for 52 seconds.
  • August 30: Fourth Lunar bound orbit maneuver for Chandrayaan-2 spacecraft performed successfully beginning at 1818 hrs IST, utilizing the onboard propulsion system with a duration of 1155 seconds.
  • August 28: Third Lunar bound orbit maneuver for Chandrayaan-2 spacecraft performed successfully beginning at 09:04 hrs IST, utilizing the onboard propulsion system with a duration of 1190 seconds.

  • August 21: Second Lunar bound orbit maneuver for Chandrayaan-2 spacecraft accomplished successfully beginning at 1250 hrs IST, utilizing the onboard propulsion system with a duration of 1228 seconds.
  • August 20: Lunar Orbit Insertion (LOI) maneuver completed successfully with its duration of 1738 seconds beginning from 09:02 hrs IST. Thus, Chandrayaan-2 was successfully supplemented into a Lunar orbit.

  • August 14: Chadrayaan-2 made its entry to the Lunar Transfer Trajectory at 2.21 am IST after the successful carrying off of final orbit raising maneuver of the spacecraft.
  • August 6: Fifth earthbound orbit-raising maneuver for Chandrayaan-2 spacecraft has been performed successfully at 1504 hrs (IST), utilizing the onboard propulsion system for a firing duration of 1041 seconds.
  • August 4: Chandrayaan-2 Vikram Lander captured the first set of beautiful images of Earth.

  • August 2: Fourth earthbound orbit-raising maneuver for Chandrayaan-2 spacecraft has been performed successfully at 15:27 hrs (IST), utilizing the onboard propulsion system for a firing duration of 646 seconds.
  • July 29: Third earthbound orbit-raising maneuver for Chandrayaan-2 spacecraft has been performed successfully at 1512 hrs (IST), utilizing the onboard propulsion system for a firing duration of 989 seconds.

  • July 26: Second earthbound orbit-raising maneuver for Chandrayaan-2 spacecraft has been performed successfully at 01:08 hrs (IST), utilizing the onboard propulsion system for a firing duration of 883 seconds.
  • July 24: First earthbound orbit-raising maneuver for Chandrayaan-2 spacecraft performed successfully at 14:52 hrs (IST), utilizing the onboard propulsion system for a firing duration of 48 seconds.

  • July 22: Chandrayaan-2, weighing 3840 kg in its second attempt, launched successfully by GSLV (Geosynchronous Satellite Launch Vehicle) MkIII-M1. This spacecraft revolved nearest to the Earth at 169.7 km and an apogee, farthest point to Earth at 45,475 km. The vehicle GSLV MkIII-M1 lifted off at scheduled launch time of 14:43 hours (IST) from the Second Launch Pad at SDSC SHAR along with ignition of its two S200 solid strap-on motors.

We hope for a smooth landing of Chandrayaan-2 on Moon between 1.30 am and 2.30 am. By this, India becomes the fourth nation to land softly on the moon, followed by the Soviet Union, the U.S., and China.




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Sanghamitra Roychoudhary

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Sanghamitra Roychoudhary