PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/19-23:58:10
G01     39.1           13.3                6.6 +/-    4.93      17.1 +/-    4.93  0.100 / 0.130
G02     199.1          12.0                7.3 +/-   14.74      19.6 +/-   14.74  0.090 / 0.150
G06     177.5          39.2               10.9 +/-    1.03      16.1 +/-    1.03  0.040 / 0.050
G13     233.8          19.9               10.7 +/-    2.15      23.7 +/-    2.15  0.050 / 0.050
G15     267.0          10.9                8.0 +/-    1.77      21.8 +/-    1.77  0.040 / 0.030
G17     12.0           66.5                7.8 +/-    1.09       8.5 +/-    1.09  0.040 / 0.030
G19     287.5          70.4                7.7 +/-    1.02       8.2 +/-    1.02  0.080 / 0.160
G24     314.3          23.8                7.4 +/-    1.77      14.9 +/-    1.77  0.090 / 0.130
G28     72.7           47.9                9.6 +/-    0.71      12.4 +/-    0.71  0.150 / 0.400
G30     155.3          23.4               11.6 +/-    0.84      23.5 +/-    0.84  0.170 / 0.460