This is my fist cache that I'm placing. This mystery cache is dedicated to my favorite sport, football. The coordinates for the actual location of the cache is N40.AA.BBB W75 CC.DDD.
AA is equal to the the calendar year the steelers won their first superbowl minus 1931.
Football Fact. The Los Angeles Rams were the first team to put a logo on their helmet. BBB is equal to the year they did this minus 999?
Mike Tomlin was the youngest head coach to win a superbowl. CC is equal to how old he was when he won Superbowl XLIII minus 18.
Odell Beckham Jr had arguably one of the best one handed catches in history. DDD is equal to the year he won the title offensive rookie of the year minus 1699?
You may check your results at certitudes.org

You can validate your puzzle solution with certitude.
Make sure to bring a pen to sign the logbook. There are a few swag items in the cache. Good luck.