#time VGT1 VGT2 VGT3 NDVI
16:10:09 0.0212 0.0437 0.3975 0.801904
16:20:08 0.0244 0.0526 0.4765 0.801172
16:30:07 0.0236 0.0494 0.4496 0.802004
ave 0.023067 0.048567 0.441200 0.801673