PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/13-20:42:40
G08     313.3          17.4               15.3 +/-    2.03      35.8 +/-    2.03  0.060 / 0.070
G10     321.3          58.2               15.6 +/-    0.67      18.0 +/-    0.67  0.060 / 0.090
G14     215.0          24.9               21.1 +/-    4.02      41.3 +/-    4.02  0.040 / 0.050
G15     46.0           19.1               13.3 +/-    0.79      30.0 +/-    0.79  0.040 / 0.040
G20     25.5           62.6               15.7 +/-    0.48      17.5 +/-    0.48  0.140 / 0.300
G21     127.4          62.1               18.7 +/-    1.03      20.8 +/-    1.03  0.090 / 0.250
G24     77.7           28.8               15.1 +/-    0.61      27.1 +/-    0.61  0.060 / 0.110
G27     284.6          37.1               17.6 +/-    0.85      26.8 +/-    0.85  0.060 / 0.090
G32     218.3          47.0               18.6 +/-    0.85      24.4 +/-    0.85  0.090 / 0.180