#time AST1 AST2 AST3N AST3B NDVI
07:50:02 0.6037 0.6089 0.6007 0.6011 -0.0067791
08:20:01 0.6340 0.6370 0.6118 0.6127 -0.0201794
13:10:00 0.7470 0.7431 0.7192 0.7199 -0.0163441
15:10:01 0.6404 0.6223 0.5906 0.5911 -0.0261357
16:20:01 0.7105 0.6931 0.6542 0.6548 -0.0288726
ave 0.667120 0.660880 0.635300 0.635920 -0.0197349