ISRO i.e. Indian Space Research Organization has started the countdown for the launch of Solar Mission Aditya L1 at 12.10 pm. Aditya L1 will be launched tomorrow (September 2) at 11.50 am by PSLV XL rocket from Satish Dhawan Space Center in Sriharikota.

ISRO chief S Somnath said on August 30 that all preparations for the launch of Aditya L1 have been completed. The rocket and satellite are ready. We have also rehearsed for the launch. It will take 125 days for the mission to reach a certain limit.

Earlier, on Monday, August 28, ISRO Chief S Somnath offered prayers at the Sri Chengalamma Parameshwari Temple in Sullurpeta, Tamil Nadu. He said that ISRO scientists visit this temple before the start of any mission. This tradition has been going on for the past 15 years.

ISRO also said on August 30 that the internal investigation of the craft has been completed. It will reach the Lagrange Point-1 i.e. L1 point 1.5 million kilometers from Earth in about 4 months. The Aditya spacecraft will orbit the L1 point to understand storms on the Sun. Apart from this, things like magnetic fields and solar wind will be studied. Aditya has 7 payloads for use.

Why will Aditya spacecraft be sent only to the L1 point?
Aditya will be placed in the halo between the Sun and Earth. The orbit around the L1 point is called the halo orbit. ISRO says that a satellite placed in a halo orbit around the L1 point can see the Sun continuously without any eclipse.

With the help of this real-time solar activities and space weather can also be monitored. Aditya L1's payload is expected to provide information for understanding coronal heating, coronal mass ejections, characteristics of pre-flare and flare activities, particle movement, and space weather.

What is L1?
The Lagrange point is named after the Italian-French mathematician Joseph-Louis Lagrange. It is commonly known as L-1. There are five such points between the Earth and the Sun, where the gravitational force of the Sun and the Earth balance and create a centrifugal force.

In such a situation, if an object is kept in this position, it easily remains stationary between the two and also requires less energy. The first Lagrange point is at a distance of 1.5 million kilometers between the Earth and the Sun. Simply put, L-1 is a point where any object can remain stationary at an equal distance from the Sun and the Earth.