|
 |
Landsat
World Reference System
|
The 16-day, 233-orbit cycle is the basis of Landsat World Reference System. The WRS is a grid of paths and rows overlaid on a map of the Earth, with the paths representing the ground track of the satellite. The intersections of path and row – nominal scene centres – are used to identify Landsat images. Actual scene centres may vary by as much as 250 m. The WRS is made up of 233 paths numbered 001 to 233, east to west, with Path 001 crossing the equator at 64.60 degrees west longitude. Rows from 1 to 122 are the descending (day) passes, while the others until 246 are the ascending (night) ones.
Landsat 7 Scene 195/028
and adjacent scenes |
| |
Landsat scene sizes |
| |
| |
|
|
|
|
