PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/24-05:27:40
G02     201.6          33.4                6.5 +/-    1.22      10.7 +/-    1.22  0.060 / 0.120
G06     170.3          63.2                5.5 +/-    0.76       6.1 +/-    0.76  0.070 / 0.100
G12     305.6          11.6               -0.6 +/-   13.83      -1.7 +/-   13.83  0.040 / 0.040
G17     32.7           51.9                3.5 +/-    1.18       4.3 +/-    1.18  0.030 / 0.050
G19     356.5          66.6                3.1 +/-    0.37       3.4 +/-    0.37  0.080 / 0.090
G24     302.1          35.7                3.2 +/-    1.69       5.0 +/-    1.69  0.050 / 0.090
G28     100.0          32.6                3.6 +/-    1.07       6.0 +/-    1.07  0.220 / 0.230