PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/08-08:12:30
G03     209.0          52.6                6.5 +/-    0.55       8.0 +/-    0.55  0.060 / 0.100
G07     262.3          19.4                6.2 +/-    1.23      13.8 +/-    1.23  0.070 / 0.090
G09     314.4          36.1                4.0 +/-    1.68       6.2 +/-    1.68  0.070 / 0.180
G16     73.7           61.4                6.0 +/-    0.41       6.7 +/-    0.41  0.080 / 0.230
G22     187.0          35.4                5.5 +/-    0.97       8.7 +/-    0.97  0.030 / 0.030
G23     336.6          65.6                5.1 +/-    0.45       5.6 +/-    0.45  0.030 / 0.040
G26     48.0           35.9                3.5 +/-    0.93       5.5 +/-    0.93  0.210 / 0.240
G27     129.5          14.9                6.0 +/-    1.60      15.0 +/-    1.60  0.220 / 0.250