#time AST1 AST2 AST3N AST3B NDVI
08:05:01 0.6331 0.6319 0.6852 0.6853 0.0404677
11:45:00 0.4707 0.4297 0.4082 0.4090 -0.0256594
11:55:00 0.5431 0.5153 0.5144 0.5149 -0.000874041
12:35:01 0.4884 0.4490 0.4340 0.4347 -0.0169875
13:15:00 0.3323 0.3012 0.2968 0.2973 -0.00735786
14:25:00 0.5634 0.5217 0.5003 0.5009 -0.0209393
ave 0.505167 0.474800 0.473150 0.473683 -0.0017406