The Target TV page 'https://e906-gat1.fnal.gov/data-summary/e1039/target-par-preset/target-tv.php' gives you an overall idea about the entire system (but not all the parameters).
In addition to the "Target TV," there are two dedicated pages designed for the convenience of the Target Operator / Target Helper.
1. https://e906-gat1.fnal.gov/data-summary/e1039/target-par-preset/target-helper.php
2. https://e906-gat1.fnal.gov/data-summary/e1039/target-par-preset/target-helper-2.php