I have a Landsat footprint polygon shapefile that I simply want to create a 6 x 6 fishnet on. I thought this would be simple, but every time I run the tool I get a fishnet output that extends longer than the original footprint and is shorter in height. I think the problem may stem from the fact that the footprint is slanted and the y-axis may be a different angle than the x-axis.
I used Feature Vertices to Points and then Add XY Coordinates to get the exact coordinates of the footprint polygon's corners. Then within the Fishnet tool, I used the footprint's extent as the 'Template Extent', the bottom left corner as the 'Origin Coordinate', the top left corner as the 'Y-Axis Coordinate', and the top right corner as the 'Opposite corner of Fishnet.'
Coordinate system is WGS_1984_UTM_Zone_18S.
Any ideas for how I can fix this and generate a properly placed fishnet?
Here's the strange looking fishnet output:
And here are the parameters I passed into the fishnet tool, along with the proper corner coordinates in the top left of the image (Point_X and Point_Y):