PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/11-17:57:40
G03     213.7          61.9                8.9 +/-    1.20      10.0 +/-    1.20  0.050 / 0.050
G07     252.2          10.8               -5.7 +/-   12.04     -15.7 +/-   12.04  0.040 / 0.060
G09     306.8          22.2               10.9 +/-    0.99      22.7 +/-    0.99  0.200 / 0.310
G14     104.4          11.9               10.3 +/-    2.26      27.5 +/-    2.26  0.140 / 0.320
G16     112.0          63.1               12.4 +/-    0.59      13.7 +/-    0.59  0.090 / 0.160
G22     188.5          46.7               10.7 +/-    0.61      14.1 +/-    0.61  0.060 / 0.180
G23     327.0          56.6                9.5 +/-    0.57      11.2 +/-    0.57  0.030 / 0.040
G31     56.1           13.7                6.3 +/-    3.98      16.3 +/-    3.98  0.030 / 0.030