Thursday, October 25, 2018

Landsat 7

This is an engineering exact replica of Landsat 7 which has been providing images of earth since April 15, 1999. It is in a pole to pole orbit which covers photographic strips covering all the planet's land every 16 days. The images, in many different wavelengths, are used to measure land use and change. They look at everything from urban growth to forest fires and volcanos. 


  1. Replies
    1. The pixel size is about the size of a baseball diamond, so Landsat does spy on people, but can see changes in land use.

  2. I never thought about there being pole to pole orbits for some reason.

    1. The pole to pole orbit allows Landset to see a different strip of land because the earth turns one revolution every 24 hours. It takes 16 days for it to see the whole earth.

  3. I think it's brilliant TFG.. something has to be out there to record the damage we are doing to our earth, maybe a disaster can be avoided if we have information soon enough ✨

  4. A good idea and interesting information. Have a wonderful weekend.