#time AST1 AST2 AST3N AST3B NDVI
09:30:01 0.5191 0.4959 0.4988 0.4992 0.00291545
09:40:01 0.6388 0.6224 0.6218 0.6221 -0.000482238
10:10:00 0.5574 0.5450 0.5521 0.5524 0.00647161
12:05:00 0.5466 0.5134 0.4934 0.4939 -0.0198649
ave 0.565475 0.544175 0.541525 0.541900 -0.00244082