India's Mars Mission will enter the sphere of influence of Mars on September 22, said V Koteswara Rao, Scientific Secretary, ISRO.

With this, ISRO will become the fourth agency in the world to successfully carry out mission to Mars.

Rao further said when the mission is accomplished, India will be the first country to successfully complete the mission on debut.

The Mars Mission has covered 98 per cent of the distance.

The mission is now waiting for Mars Orbit Insertion command to move it into Mars Orbit from the current solar orbit.

The D-Day for insertion is September 24.

ISRO Scientific Secretary V Koteswara Rao said the total radio distance is 224 million kilometres and the distance covered by India's Mars Mission is 215 million kilometres.

Rao said when calculated in heliocentric path, it is 666 million kilometres, while the distance covered by Mars Mission is 653 million kilometres.

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