Here is my distillation of the material on MPC’s website
During the MPC mini-lecture, Gigi asked baout what to do if your team used more than one filter over the course of the program. The BND keyword in the header is optional. In the event that your team is submitting data taken with different filters on different evenings, leave BND out of the header entirely and just report the filter used in column 71 of the data block.
(Please note we have found one typo in the Life Skills PSet 1 handout & two typos in its solution. Corrections will be posted no more than 12 hours after the due date.)