PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/12-21:12:50
G01     250.6          35.5               11.4 +/-    2.26      18.0 +/-    2.26  0.270 / 0.480
G03     316.1          43.7                8.0 +/-    0.71      11.0 +/-    0.71  0.260 / 0.520
G11     235.7          11.5                8.6 +/-    8.73      23.2 +/-    8.73  0.080 / 0.100
G14     60.8           40.2                8.0 +/-    0.77      11.7 +/-    0.77  0.080 / 0.100
G18     217.4          26.1                9.7 +/-    2.79      18.5 +/-    2.79  0.060 / 0.080
G22     304.4          65.8                8.5 +/-    0.72       9.3 +/-    0.72  0.080 / 0.070
G23     286.0          17.8                8.4 +/-    1.13      19.5 +/-    1.13  0.040 / 0.040
G26     138.8          37.4               11.1 +/-    1.27      16.9 +/-    1.27  0.050 / 0.040
G31     40.6           62.1                6.8 +/-    0.44       7.6 +/-    0.44  0.070 / 0.090
G32     77.0           23.4                7.6 +/-    1.52      15.3 +/-    1.52  0.080 / 0.090