Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Example of Caterpillar Track anomaly in L5 TM Browse image.
See https://www.usgs.gov/land-resources/nli/landsat/shutter-synchronization… for more information.
Public Domain.
