#time VGT1 VGT2 VGT3 NDVI
07:40:01 0.4508 0.4501 0.5076 0.0600397
08:25:01 0.4369 0.4290 0.4729 0.048675
14:35:00 0.4250 0.3545 0.3362 -0.0264949
14:50:00 0.6142 0.5567 0.5382 -0.0168965
ave 0.481725 0.447575 0.463725 0.0177219