live: ISRO Chandrayaan-3 Propulsion Module is Moved by ISRO Into Earth’s Orbit

The Live Chandrayaan-3 mission was to exhibit a delicate arrival close to the lunar south polar district and perform tests utilizing the instruments on the ‘Vikram’ lander and the ‘Pragyan’ meanderer.

The launch of Chandrayaan-3 happened on July 14, 2023.

Bengaluru: The Drive Module (PM) of Chandrayaan-3 has been moved from a circle around the Moon to a circle around Earth, ISRO has said, naming the activity an interesting trial.

The Chandrayaan-3 mission’s primary objective was to perform experiments with the instruments on the “Vikram” lander and “Pragyan” rover and demonstrate a soft landing near the lunar south polar region.

The spacecraft was launched from the Satish Dhawan Space Centre (SDSC-SHAR) on July 14, 2023, aboard the LVM3-M4 vehicle.

Goal of Chandrayaan-3:

Ch-3’s Drive Module (PM) is an effective diversion!

The PM is transferred from the lunar orbit to Earth’s orbit in a further novel experiment.

PM was placed in an Earth-bound orbit via an orbit-raising and trans-Earth injection maneuver.

— ISRO (@isro) December 5, 2023 On August 23, the historic Vikram lander touchdown on the Moon took place, and the Pragyan rover was then launched.

The logical instruments in the lander and wanderer were worked consistently for one lunar day according to the characterized mission life.

The Indian Space Research Organization (ISRO) released a statement stating that “the mission objectives of Chandrayaan-3 have been completely met.”

It specified that the primary objective of the Propulsion Module was to discrete the lander and transport the lander module from the Geostationary Transfer Orbit (GTO) to the final lunar polar circular orbit.

After the division, the spectro-polarimetry of the tenable planet Earth (SHAPE) payload in the PM was likewise worked on, the space organization said.

The underlying arrangement was to work on this payload for around 90 days during the mission life of the PM. It added that after more than a month of operations in the lunar orbit, the PM had access to over 100 kg of fuel thanks to LVM3’s precise orbit injection and optimum earth or lunar burn maneuvers.

ISRO said that it was chosen to involve the accessible fuel in the PM to determine extra data for future lunar missions and show the mission activity systems for example bring the mission back.

To proceed with the SHAPE payload for earth perception, it was chosen to re-circle the PM to a reasonable earth circle. According to the statement, this mission plan was developed with collision avoidance in mind, such as preventing the PM from hitting the Moon’s surface or entering the Earth’s Geosynchronous Equatorial Orbit (GEO) belt at 36,000 km and orbiting lower than that.

Taking into account the assessed fuel accessibility and the security of the GEO rocket, the ideal earth return direction was intended for October 2023.

On October 9, 2023, the first maneuver was carried out to raise the orbital altitude from 150 kilometers to 5,112 kilometers, thereby increasing the orbital period from 2.1 hours to 7.2 hours. Afterward, taking into account the gauge of accessible force, the subsequent move plan was reexamined to focus on an Earth circle of 1.8 lakh x 3.8 lakh km.

On October 13, 2023, the Trans-Earth injection (TEI) procedure was carried out. Before leaving the Moon’s sphere of influence (SOI) on November 10, the PM completed four Moon flybys in the orbit that followed the TEI maneuver.

The PM is currently in Earth’s orbit and reached its first perigee on November 22 at an altitude of 1.54 lakh kilometers. The circle time frame is almost 13 days with a 27-degree tendency. According to ISRO, the predicted minimum perigee altitude is 1.15 lakh km, and the apogee and perigee altitudes fluctuate throughout its trajectory.

It stated, “There is no risk of close tactic with any operational Earth-orbiting satellites as per existing orbit forecast.”

The SHAPE payload is operating under the plan whenever Earth is in its field of view. Additionally, the SHAPE payload performed a unique operation on October 28, 2023, during a solar eclipse. The statement also stated that additional SHAPE payload operations would be carried out.

ISRO stated, “UR Rao Satellite Centre/ISRO’s flight dynamics team has advanced an investigation tool from first principles for this operation.” This tool is being authenticated by the Chandrayaan-3 PM’s return maneuvers.

As indicated by ISRO, coming up next are the fundamental results of the return moves completed on the PM connected with future missions: preparing and carrying out the trajectories and maneuvers required to return to Earth from the Moon; the creation of a software module for the purpose of planning such an action and its preliminary validation; arranging and execution of a gravity-helped fly-by across a planet or divine body; furthermore, keeping away from uncontrolled crashing of the PM onto the Moon’s surface toward the finish of life of the PM consequently meeting the prerequisites of no garbage creation.

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