PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/06-18:27:30
G02     204.3          35.4               15.1 +/-    1.18      23.7 +/-    1.18  0.040 / 0.050
G06     151.4          72.0               15.6 +/-    0.79      16.4 +/-    0.79  0.030 / 0.050
G12     309.4          19.2                8.9 +/-    0.76      20.1 +/-    0.76  0.060 / 0.120
G17     37.1           48.4                9.3 +/-    1.72      11.9 +/-    1.72  0.070 / 0.110
G19     358.8          65.3                9.3 +/-    0.64      10.2 +/-    0.64  0.110 / 0.220
G24     294.8          39.7                7.4 +/-    4.96      10.8 +/-    4.96  0.100 / 0.200
G28     104.2          30.0               11.2 +/-    0.78      19.6 +/-    0.78  0.070 / 0.080