PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/29-22:27:50
G01     85.8           32.7               10.3 +/-    1.75      17.0 +/-    1.75  0.190 / 0.340
G07     128.7          42.7               13.1 +/-    0.47      18.2 +/-    0.47  0.190 / 0.260
G11     66.8           39.7                9.6 +/-    0.93      14.1 +/-    0.93  0.060 / 0.090
G13     290.7          36.6               10.8 +/-    2.31      16.6 +/-    2.31  0.070 / 0.080
G15     312.4          11.9                2.9 +/-   26.52       7.7 +/-   26.52  0.030 / 0.030
G17     218.1          53.4               12.5 +/-    1.01      15.1 +/-    1.01  0.030 / 0.030
G18     60.6           23.3                9.6 +/-    1.03      19.5 +/-    1.03  0.120 / 0.130
G19     216.5          30.1               13.6 +/-    1.78      23.8 +/-    1.78  0.120 / 0.170
G28     357.5          61.4                9.7 +/-    1.02      10.9 +/-    1.02  0.030 / 0.050
G30     117.2          70.5               11.9 +/-    0.44      12.6 +/-    0.44  0.040 / 0.050