PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/19-20:12:40
G01     234.7          24.6               11.2 +/-    1.76      22.1 +/-    1.76  0.030 / 0.030
G03     305.0          61.2               11.3 +/-    0.73      12.7 +/-    0.73  0.030 / 0.030
G14     76.7           31.2               10.6 +/-    1.10      18.1 +/-    1.10  0.140 / 0.190
G16     156.3          33.5               13.3 +/-    1.49      21.7 +/-    1.49  0.190 / 0.240
G22     253.8          75.8               12.9 +/-    0.84      13.2 +/-    0.84  0.080 / 0.040
G23     299.5          30.3               12.5 +/-    1.06      21.7 +/-    1.06  0.060 / 0.070
G26     116.7          50.2               13.1 +/-    0.71      16.4 +/-    0.71  0.070 / 0.110
G31     41.6           42.2                9.7 +/-    0.81      13.7 +/-    0.81  0.090 / 0.120
G32     91.3           12.5               11.8 +/-    2.22      31.2 +/-    2.22  0.120 / 0.170