PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/30-04:27:50
G01     248.5          34.2                4.5 +/-    1.36       7.3 +/-    1.36  0.030 / 0.040
G03     315.6          43.7                3.4 +/-    1.42       4.6 +/-    1.42  0.030 / 0.040
G11     234.2          10.7                5.4 +/-    1.80      14.9 +/-    1.80  0.060 / 0.110
G14     62.1           40.0                3.5 +/-    0.83       5.0 +/-    0.83  0.070 / 0.130
G18     218.6          25.5                5.8 +/-    1.61      11.2 +/-    1.61  0.040 / 0.080
G22     302.3          66.4                3.0 +/-    0.72       3.3 +/-    0.72  0.050 / 0.090
G23     288.0          19.8                2.8 +/-    1.18       6.2 +/-    1.18  0.080 / 0.230
G26     131.1          40.6                5.3 +/-    0.86       7.7 +/-    0.86  0.100 / 0.250
G31     41.1           53.7                3.8 +/-    0.94       4.6 +/-    0.94  0.170 / 0.410
G32     80.1           19.9                4.0 +/-    0.93       8.7 +/-    0.93  0.140 / 0.440