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How does NASA work or interact with space shuttle?

 

How Does NASA communicate with spacecraft?

 

NASA Communication with space craft:

Spacecraft sends us the information and pictures using DNS (deep space network). DNS is a collection of big antennas which receives information and is located at different locations in the world. The antennas also receive details about where the spacecraft are and how they are doing. There are DSN locations near Canberra, Australia, Madrid, Spain and Goldstone, California. Those sites are almost evenly spaced around the planet. That means as the Earth turns, we never loose the sight of spacecraft.

 

What DSN Antennas Do?

DSN receives information and pictures which is sent by spacecraft. NASA also uses the DSN to send lists of instructions to the space craft.


How Do Spacecraft Communicate With the DSN?

The tools they use in the spacecraft can't be heavy or take too much power or take too much room. Small antennas are fixed to the spacecraft and the week signals are released to earth. The DSN sites have large size antennas which detect the week signals which are released to earth. 

        These DSN sites consists of different size  antennas based on the distance of spacecraft .The farther away  the spacecraft is, the larger antenna you need to detect the signals. The maximum size of the antenna is up to 70 meters (230 feet) in diameter. 


What Happens Once the DSN Receives Data?

Centers at each DSN site receive incoming information. Then they send it to the operations facility at California. There the photos and other data are processed and shared with scientists and rest of us.  

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