PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/23-00:43:00
G01     250.2          35.1                9.9 +/-    2.72      15.6 +/-    2.72  0.060 / 0.090
G03     316.0          43.3                7.8 +/-    0.57      10.7 +/-    0.57  0.070 / 0.090
G11     235.4          11.4                7.2 +/-   11.36      19.4 +/-   11.36  0.040 / 0.040
G14     60.9           40.4                5.6 +/-    1.29       8.1 +/-    1.29  0.040 / 0.040
G16     161.7          19.4                9.1 +/-    1.94      20.2 +/-    1.94  0.060 / 0.100
G18     218.3          26.2               10.8 +/-    3.91      20.6 +/-    3.91  0.120 / 0.090
G22     304.1          65.7                8.8 +/-    0.62       9.6 +/-    0.62  0.220 / 0.520
G26     135.8          38.6               11.1 +/-    0.73      16.6 +/-    0.73  0.280 / 0.600
G31     40.9           58.6                6.7 +/-    0.58       7.7 +/-    0.58  0.120 / 0.220
G32     78.1           22.0                6.8 +/-    1.90      14.3 +/-    1.90  0.110 / 0.230