#time VGT1 VGT2 VGT3 NDVI
09:30:01 0.5552 0.4959 0.4977 0.00181159
09:40:01 0.6625 0.6224 0.6205 -0.00152868
10:10:00 0.5814 0.5451 0.5523 0.00656096
12:05:00 0.5870 0.5131 0.4892 -0.0238452
ave 0.596525 0.544125 0.539925 -0.00387436