PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/15-15:12:30
G02     209.8          46.9               10.5 +/-    0.75      13.8 +/-    0.75  0.090 / 0.150
G06     102.8          79.0               10.1 +/-    0.57      10.3 +/-    0.57  0.150 / 0.130
G12     313.9          26.3                8.6 +/-    0.88      16.4 +/-    0.88  0.080 / 0.050
G17     45.6           42.1                7.0 +/-    1.32       9.8 +/-    1.32  0.070 / 0.080
G19     28.0           54.9                9.0 +/-    1.73      10.8 +/-    1.73  0.050 / 0.040
G24     280.6          41.7                4.3 +/-    1.90       6.1 +/-    1.90  0.050 / 0.090
G28     112.5          27.1                9.5 +/-    1.43      17.7 +/-    1.43  0.050 / 0.040