#time VGT1 VGT2 VGT3 NDVI
08:40:00 0.6072 0.5041 0.4593 -0.046502
10:00:00 0.3129 0.1572 0.1104 -0.174888
14:40:00 0.7624 0.7563 0.7305 -0.0173527
15:00:01 0.7540 0.7403 0.7141 -0.0180143
15:10:01 0.7468 0.7272 0.6995 -0.0194154
15:20:01 0.7406 0.7153 0.6896 -0.0182931
15:30:00 0.7382 0.7052 0.6756 -0.0214368
15:40:00 0.7196 0.6717 0.6398 -0.0243233
15:50:00 0.7183 0.6526 0.6165 -0.0284454
16:00:00 0.5722 0.3551 0.2943 -0.0936249
ave 0.667220 0.598500 0.562960 -0.0305994