Countdown to halo orbit insertion begins as Aditya L1 enters critical stage

The Aditya L1 spacecraft was launched by ISRO on September 2, 2023 from Sriharikota.

Author
Sonia Dham
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Courtesy: ISRO

Aditya L1 entering its critical stage marks a significant milestone in India's ambitious space program. The countdown to halo orbit insertion is a delicate and crucial phase, requiring precise manoeuvres and a watchful eye from mission control. The spacecraft was launched by ISRO on September 2, 2023 from Sriharikota.

According to the information, the L1 spacecraft will conduct a complex insertion into the halo orbit, a point of gravitational equilibrium between the Earth and the Sun. The aircraft is in its final leg which has covered almost 15 lakh kms in the cold vacuum of space.

The journey is expected to culminate on January 6, 2024.

Noteworthy here is that the insertion into L1 is a critical phase of the mission, which requires precise navigation and control, and before being injected into a transfer orbit towards L1, it underwent a series of four Earth-bound orbital manoeuvres.

The spacecraft will measure a variety of phenomena, including interplanetary magnetic fields and coronal mass ejections (CMEs), giving crucial data for the scientific community worldwide as well as for India.

The mission team is prepared to face the challenges of space travel and is alert as Aditya L1 gets closer to its objective.
In addition to being essential to Isro's capabilities, the accomplishment of this insertion will open up new avenues for research into the secrets of our Sun and how it affects space weather.

What is a Halo orbit?

This is a special type of orbit around Lagrange point 1 (L1), a gravitationally stable point between the Earth and the Sun. It allows Aditya L1 to continuously observe the Sun without being constantly swept away by the combined gravity of both celestial bodies.