PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/11-20:27:40
G01     241.8          29.9                9.7 +/-    1.51      17.0 +/-    1.51  0.030 / 0.030
G03     312.4          53.5                8.7 +/-    1.10      10.5 +/-    1.10  0.030 / 0.030
G14     69.1           35.8                8.1 +/-    1.72      12.6 +/-    1.72  0.080 / 0.210
G16     160.7          25.5               12.3 +/-    2.34      23.7 +/-    2.34  0.110 / 0.180
G22     286.1          73.2                9.8 +/-    0.30      10.2 +/-    0.30  0.110 / 0.140
G23     293.4          24.9                8.4 +/-    1.30      16.5 +/-    1.30  0.090 / 0.120
G26     127.9          44.9               11.1 +/-    0.66      15.0 +/-    0.66  0.030 / 0.050
G31     40.2           50.1                7.1 +/-    0.58       9.0 +/-    0.58  0.030 / 0.040
G32     84.8           17.5                8.5 +/-    1.53      19.9 +/-    1.53  0.110 / 0.160