PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/11-19:58:10
G02     202.5          31.1               15.5 +/-    2.35      26.6 +/-    2.35  0.060 / 0.090
G06     160.9          66.7               14.7 +/-    0.75      15.8 +/-    0.75  0.060 / 0.110
G12     306.3          14.3                9.5 +/-    1.79      24.0 +/-    1.79  0.080 / 0.130
G17     31.0           53.1               12.2 +/-    0.69      14.9 +/-    0.69  0.070 / 0.120
G19     348.1          67.6               11.7 +/-    0.71      12.5 +/-    0.71  0.090 / 0.250
G24     300.7          36.9               11.9 +/-    1.12      18.2 +/-    1.12  0.090 / 0.300
G28     99.4           33.2               11.8 +/-    0.68      19.4 +/-    0.68  0.050 / 0.060