PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/22-15:12:30
G02     204.4          32.4                9.7 +/-    2.13      16.2 +/-    2.13  0.080 / 0.070
G06     151.7          71.1               10.5 +/-    0.53      11.0 +/-    0.53  0.100 / 0.080
G12     309.4          20.2                6.0 +/-    1.49      13.1 +/-    1.49  0.080 / 0.190
G17     38.1           47.3                8.3 +/-    1.77      10.8 +/-    1.77  0.190 / 0.230
G19     353.2          66.4                7.7 +/-    0.34       8.3 +/-    0.34  0.030 / 0.020
G24     295.6          39.7                8.6 +/-    7.92      12.5 +/-    7.92  0.040 / 0.030
G28     102.8          31.0                8.4 +/-    0.96      14.4 +/-    0.96  0.030 / 0.030