PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/05-15:42:30
G01     221.1          11.7               13.3 +/-    1.40      35.8 +/-    1.40  0.080 / 0.240
G03     253.2          71.4                9.3 +/-    0.77       9.8 +/-    0.77  0.100 / 0.200
G09     298.4          11.7                0.2 +/-   28.21       0.5 +/-   28.21  0.040 / 0.070
G14     92.1           22.1                7.4 +/-    1.31      15.6 +/-    1.31  0.050 / 0.060
G16     137.5          52.9               10.8 +/-    0.53      13.1 +/-    0.53  0.120 / 0.320
G22     195.1          61.1               10.7 +/-    0.63      12.0 +/-    0.63  0.150 / 0.370
G23     315.7          46.1               10.7 +/-    0.64      14.2 +/-    0.64  0.030 / 0.040
G26     80.4           53.4                8.4 +/-    1.14      10.2 +/-    1.14  0.040 / 0.050
G31     48.9           24.2                7.7 +/-    1.50      15.4 +/-    1.50  0.050 / 0.060