The second part of the data collect did not happen today (not really surprised) due to a slight landing gear difficulty the team coming down from Canada to take our pictures had. For some reason when they had their camera on then turned on the landing gear, they lost power in the plane. Luckily the problem should be fixed now and no one was hurt. Despite this delay though still more people wanted asd data, so out Nina and I went AGAIN, and spent another hour and a half taking measurements of tarps and the backgrounds they were on. Now all I want to do is sit. But the freeze pops afterwards did help and I know how to work the asd machine now. What was learned today? AFTER WHITE REFERENCING MAKE SURE TO MOVE THE BLOCK!