In the orbits section of the webpage you will find information as it pertains to items that orbit around the Earth. These pages will give you some background information on satellites and how they are able to look at the entire globe. Each different orbit will give the spacecraft a unique view of the earth. Depending on the parameter that scientists want to study, a particular orbit will be choose to best view the Earth. Use the LANDSAT image viewer to locate your home or school as seen from a satellite!
These illustrations show 3 consecutive orbits of a sun-synchronous satellite with an equatorial crossing time of 1:30 pm. The satellite’s most recent orbit is indicated by the dark red line, while older orbits are lighter red. View animation.(NASA illustration by Robert Simmon.)