This is the definition of #1 TAG site on shape model 3. It is typically called MTAG15.in. It is 401 pixels wide with a GSD of 50cm (200m wide).

You can make a file called MTAG15.in, or you can copy/paste this when running BIGMAP.

l -8.027 262.768 0.000500 200 1.23400 1000MTAG151.005.025111111100