PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/19-17:57:50
G01     306.3          33.7                7.9 +/-    1.93      12.9 +/-    1.93  0.070 / 0.160
G10     106.9          39.9                9.9 +/-    0.94      14.5 +/-    0.94  0.100 / 0.180
G11     282.7          27.6                8.8 +/-    1.05      16.3 +/-    1.05  0.080 / 0.120
G14     357.2          66.7                7.8 +/-    0.47       8.4 +/-    0.47  0.070 / 0.090
G18     118.4          11.6               10.5 +/-    1.77      28.2 +/-    1.77  0.030 / 0.030
G22     310.1          26.9                8.4 +/-    1.20      15.8 +/-    1.20  0.030 / 0.030
G25     81.6           17.0                9.8 +/-    1.51      23.3 +/-    1.51  0.100 / 0.110
G31     166.5          65.9                9.5 +/-    0.37      10.3 +/-    0.37  0.090 / 0.120
G32     37.2           51.7                8.7 +/-    1.12      10.7 +/-    1.12  0.030 / 0.030