PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/12-22:27:50
G08     268.1          19.3               10.1 +/-    1.24      22.7 +/-    1.24  0.140 / 0.300
G10     56.8           59.0               10.8 +/-    0.86      12.4 +/-    0.86  0.130 / 0.300
G11     312.6          16.4               -0.6 +/-   20.16      -1.4 +/-   20.16  0.120 / 0.290
G14     260.7          64.5               10.0 +/-    0.82      11.0 +/-    0.82  0.100 / 0.320
G18     313.2          31.0               10.2 +/-    1.13      17.4 +/-    1.13  0.040 / 0.060
G20     92.8           38.4               10.9 +/-    0.42      16.4 +/-    0.42  0.040 / 0.070
G21     154.2          17.2               10.3 +/-    2.24      24.3 +/-    2.24  0.100 / 0.200
G27     235.1          18.0               12.3 +/-    1.94      28.5 +/-    1.94  0.130 / 0.200
G31     179.1          27.4               12.2 +/-    1.74      22.6 +/-    1.74  0.130 / 0.360
G32     332.0          75.2               10.4 +/-    0.58      10.7 +/-    0.58  0.100 / 0.340