PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/23-00:42:40
G01     90.3           31.8                8.3 +/-    1.12      14.0 +/-    1.12  0.030 / 0.040
G07     125.4          45.9               10.6 +/-    0.58      14.1 +/-    0.58  0.030 / 0.050
G08     42.6           9.9                 5.2 +/-    4.29      14.5 +/-    4.29  0.070 / 0.100
G11     72.0           41.6                8.1 +/-    0.93      11.5 +/-    0.93  0.100 / 0.110
G13     295.5          35.4               10.2 +/-    3.35      16.0 +/-    3.35  0.080 / 0.370
G15     314.9          10.5               -6.7 +/-   13.75     -18.5 +/-   13.75  0.170 / 0.560
G17     214.9          51.6               11.4 +/-    0.87      14.1 +/-    0.87  0.030 / 0.060
G19     214.6          27.2               12.1 +/-    1.61      22.5 +/-    1.61  0.040 / 0.050
G28     350.3          61.7                8.3 +/-    0.35       9.3 +/-    0.35  0.070 / 0.090
G30     109.8          72.0               10.8 +/-    0.44      11.3 +/-    0.44  0.060 / 0.110