PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/04-14:12:30
G02     217.8          62.1               13.3 +/-    1.04      14.8 +/-    1.04  0.070 / 0.070
G06     54.5           74.2               11.3 +/-    0.63      11.7 +/-    0.63  0.080 / 0.090
G12     319.3          37.6               10.0 +/-    1.16      15.1 +/-    1.16  0.110 / 0.490
G17     61.1           28.8                9.4 +/-    0.71      16.9 +/-    0.71  0.110 / 0.410
G19     44.4           46.1                9.6 +/-    0.40      12.8 +/-    0.40  0.040 / 0.090
G24     264.5          40.9               12.1 +/-    0.94      17.3 +/-    0.94  0.050 / 0.070
G28     124.7          11.1               11.5 +/-    2.26      31.3 +/-    2.26  0.040 / 0.110