PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/11-21:12:50
G01     252.7          36.5               11.0 +/-    1.03      17.0 +/-    1.03  0.060 / 0.110
G03     316.4          41.9                9.8 +/-    2.39      13.8 +/-    2.39  0.060 / 0.100
G11     237.1          12.5               10.3 +/-    5.94      27.2 +/-    5.94  0.200 / 0.450
G14     58.9           41.3                9.7 +/-    0.87      13.8 +/-    0.87  0.130 / 0.370
G18     218.7          27.6               13.9 +/-    1.04      25.5 +/-    1.04  0.050 / 0.100
G22     306.6          64.1                9.5 +/-    0.83      10.4 +/-    0.83  0.060 / 0.100
G23     284.6          16.7               10.7 +/-    2.82      25.6 +/-    2.82  0.160 / 0.530
G26     140.3          35.9               14.9 +/-    1.14      23.2 +/-    1.14  0.120 / 0.700
G31     41.3           64.0                9.8 +/-    0.79      10.8 +/-    0.79  0.040 / 0.060
G32     75.5           24.5               10.8 +/-    0.99      21.3 +/-    0.99  0.030 / 0.050