ISRO successfully launched the European Space Agency's PROBA-3 satellite in its 61st commercial mission 'C-59'.
PROBA-3 aim is to study the Sun's corona at a level of precision never done before.
It is designed to demonstrate precision formation flying.
The two satellites will maintain a separation of about 150 meters with millimeter accuracy.
Together, they will create an artificial solar eclipse, a unique event in space science.
It aims to study the Sun’s corona for extended periods - far exceeding the brief duration of natural eclipses.
There are two types of formations.
In the Fixed Formation, the spacecraft maintains a fixed distance and orientation relative to each other.
In Dynamic Formation, the spacecraft may change their relative positions, such as in missions where spacecraft need to move between different regions of space.