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        1000
MTAG15
1
.005
.025
1
1
1
1
1
1
1
0
0