PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/16-18:58:10
G01     313.4          27.9                8.8 +/-    3.94      16.1 +/-    3.94  0.100 / 0.170
G10     97.0           44.9                8.0 +/-    0.40      10.8 +/-    0.40  0.130 / 0.160
G11     289.3          27.8                6.5 +/-    1.44      11.9 +/-    1.44  0.040 / 0.060
G14     338.0          70.1                7.7 +/-    0.63       8.1 +/-    0.63  0.040 / 0.050
G18     286.2          49.9                8.2 +/-    0.86      10.4 +/-    0.86  0.070 / 0.200
G20     115.1          20.0                9.1 +/-    0.95      20.0 +/-    0.95  0.100 / 0.190
G22     306.6          19.1                7.8 +/-    1.22      17.6 +/-    1.22  0.060 / 0.050
G25     84.0           12.9                9.1 +/-    1.81      23.7 +/-    1.81  0.040 / 0.050
G31     176.5          52.6               10.2 +/-    1.01      12.4 +/-    1.01  0.130 / 0.160
G32     25.3           59.2                6.6 +/-    0.44       7.6 +/-    0.44  0.090 / 0.220