ESI TV Guider Images

The first two images are showing the TV guide camera and slit area with a temporary target on a slit mask. The arrows are pointing up and left on the original grid paper with the instrument in the rotator orientation we call 0 degrees.

View of slit area View of slit area

This next image of the slit area as seen by the PXL TV guider system is to show the image transformations.

View of slit area through TV guider

Here is an alignment image of the slit area with a grid pattern overlaying the mirror and slit mask. Grid marks are at 30 arcsec intervals over the ~4 square arcmin FOV. There is a slight field rotation of about 2 degrees.

View of grid pattern for alignment purposes