PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/29-18:27:50
G01     266.1          40.1               10.8 +/-    1.44      15.6 +/-    1.44  0.060 / 0.080
G03     316.4          34.6                6.6 +/-    1.14      10.5 +/-    1.14  0.050 / 0.100
G10     131.8          14.5               10.8 +/-    1.13      27.1 +/-    1.13  0.050 / 0.070
G11     249.4          18.9                8.9 +/-    1.68      20.2 +/-    1.68  0.060 / 0.040
G14     46.5           48.7                8.3 +/-    0.55      10.7 +/-    0.55  0.150 / 0.190
G22     313.2          55.8                8.9 +/-    0.98      10.5 +/-    0.98  0.170 / 0.230
G25     49.5           15.9                7.8 +/-    1.17      18.9 +/-    1.17  0.060 / 0.090
G26     145.7          28.0               12.9 +/-    1.82      23.6 +/-    1.82  0.050 / 0.100
G31     48.8           70.6                9.2 +/-    0.34       9.7 +/-    0.34  0.030 / 0.030
G32     67.5           30.0                8.1 +/-    0.48      14.2 +/-    0.48  0.030 / 0.030