Docking refers to the process of spacecrafts connecting in space. It is a critical part of getting astronauts and supplies to and from the International Space Station (ISS).
The ISS is a large modular space station in orbit around Earth. It is about the size of a big football field and orbits at an altitude of about 400 kilometers above the Earth’s surface.
Following correct trajectory
To dock with the ISS, SpaceX Dragon capsule (named Endeavour) approached it slowly and carefully. The spacecraft was monitored by the ISS crew and ground control to ensure that it is on course and following the correct trajectory.
The docking sequence finished at about 10.54 a.m. (Updated)
Docking is a complex, delicate process. The Endeavour capsule must be aligned correctly with the ISS docking port, which is an opening on the side of the ISS where the spacecraft will attach.
Once the spacecraft is in position, it will use a docking mechanism to connect with the space station. This mechanism is called the International Docking Adapter (IDA).
Precision and attention
The docking process requires precision and attention to detail. The spacecraft will use thrusters to move closer to the ISS and must align itself with the IDA very precisely.
Once it is in position, SpaceX Dragon will use its docking mechanism to latch onto the IDA and create an airtight seal. The spacecraft will then be secured to the ISS using a series of hooks and latches.
All the while, the astronauts will approach the ISS after slow, careful maneuvers, using the Endeavour’s advanced navigation systems to align with the IDA.
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An airtight seal
Once it is in position, the spacecraft’s docking mechanism will latch onto the IDA and create an airtight seal.
The docking process can take a while, during which time the crew aboard the spacecraft and the ISS will run a series of checks to ensure that everything is working correctly.
Once the Endeavour recieves a green light, the Emirati astronaut Sultan Al Neyadi along with the crew will clamber through the hatch on to the International Space Station.
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