ISRO Spadex Mission: What does docking in space mean? mint

With the launch of SpaDeX mission, India is poised to become the fourth country to master space docking after the US, Russia and China. Space-docking capabilities are essential for the Indian space industry. They are an important step towards future human space flights, the Chandrayaan-4 mission and the construction of the Indian Space Station (BAS).

The Indian Space Research Organization (ISRO) launched the Spadex mission late on December 30. It is now expected to perform space docking using two 220 kg satellites – Chaser and Target – in low-Earth circular orbit. ISRO Chairman S Somnath said on Monday that the decking process is likely to be attempted on January 7.

But what does docking mean?

Have you heard of the International Space Station (ISS)? It is like a home for humans in space. The US has launched several spacecraft carrying humans into space and has carried out months-long missions in microgravity aboard the USS while their spacecraft are “docked” to the space station.

The coming together and joining of two space objects for some purpose is called ‘docking’.

“Docking” is when a spacecraft can maneuver and attach itself to a space station. The National Aeronautics and Space Administration defines docking as “the mating operation where an active vehicle flies to the mating interface under its own power”.

Meanwhile, ISRO pointed out that in-space docking technology is useful when multiple rockets are launched into space to achieve common mission objectives.

ISRO Chairman S Somnath also explained the meaning and purpose of docking in an interview. “When you have multiple objects in space, and we need to bring them together for a specific purpose, we need a mechanism called docking,” he said.

He said that docking can be done in a variety of ways: soft mechanism, rigid mechanism, or pressurized compartment for human transfer (this is done to transport humans from one spacecraft to another).

“For example, on the International Space Station, when a crew module attaches to the station, you equalize pressure and transfer people,” Somnath said.

The ISRO chief further said that initially, a mechanism comes and connects, and later, a sealed connection is established. He said, “Suppose you want to build a space station. Not everything is launched at once. The modules go on one after the other. They connect to each other to create a tall, big, complex space station. Are.”

One of the objectives of ISRO’s Spadex mission is to perform this docking procedure on January 7. This mission will dock two satellites (chaser and target) in space.

What to look for in a SpaDeX mission?

S Somnath said that our goal at SpaDeX is to replicate the technology required for the docking process. He explained about the major things ISRO is exploring in the Spadex mission. These are:

1. Mechanism – How to join two objects and make it rigid to form an integral part.

2. How to control it once it is integrated.

3. How about a set of sensors that would enable autonomous docking of these objects.

4. How to handle failures if it fails to dock properly

6. Disconnect both spacecraft whenever necessary

Why is the docking system important?

India needs a docking system for its future missions. S Somnath said Spadex is important because building complex systems in space requires connections.

“So how do we connect objects in space? And the connections can’t happen the same way they do on the ground because they’re moving so fast. When objects move so fast, they have to maneuver. It requires finesse, good control systems, good sensors, algorithms, good software. We are testing all this in space,” Somnath told India Today TV.