Technology

How satellites get launched by ISRO

Round and round they go till the right height and velocity gets upon the wings and the fall sustains into an orbit.

The satellites which get launched to orbit the earth have a number of rules and regulations they must follow for a number of reasons. Which is why they must have a precise manner of orbit. This precise manner follows properties such as the elliptical eccentricity which essentially tells us how near or far the satellite will approach earth as it goes round and round the planet making orbits year in and out.

The precise order of things: Determining the correct path

The determination of the ‘correct’ or rather the ascertained path for any satellite is done by laws. Not just those of physics but also those of politics. However, the adjustments are of course done by the laws of physics. A push of thrusters here and there can of course aid in the fine course corrections which begin to degrade over time. But the push into the main orbit is always done right in the beginning.

Kinds of orbits: The idea of synchronicity

The two main kinds of synchronicity which exist are geo-synchronicity and polar-synchronicity. Geo-synchronous satellites appear as if they are fixed over a particular country or region. This is done by matching the angular orbital velocity of the satellite with the angular velocity of the earth’s rotation. This in turn is generally achieved by either the pushing the satellite into an orbit high enough with just the right velocity to sustain it in that manner or by fine adjustments to the course after launch.

Polar synchronous satellites essentially orbit the earth in a vertical or lateral manner from one pole to another. This is done via following one of the longitudinal circles. Now the other thing which can be done using this method is solar synchronicity. Where the satellite constantly corrects its path to remain on the longitude which is currently in the process of setting under the great shadow and on the other side meets the light of a new day on some land.

How ISRO manages to do it: With glamour and without unnecessary extravagance

What ISRO does to launch these devices into their respective orbits with just the right push and manoeuvre is called the Hohmann Manoeuvre. This allows the space probes to be launched into orbits to first attain safe small orbits which then are made to increase their apogee and perigee distances. Hence, they are made to move into larger orbits.

Ergo, it is safe to say that ISRO uses a safe and smart method of launching anything into space.

Back to top button