PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/27-22:27:40
G03     207.8          53.3                9.4 +/-    1.37      11.4 +/-    1.37  0.090 / 0.170
G07     261.9          20.8               10.8 +/-    1.81      23.4 +/-    1.81  0.140 / 0.190
G09     313.4          34.1                7.7 +/-    1.74      12.5 +/-    1.74  0.060 / 0.070
G16     85.5           64.5               10.4 +/-    0.53      11.4 +/-    0.53  0.040 / 0.070
G22     187.4          36.6               10.0 +/-    1.47      15.4 +/-    1.47  0.040 / 0.040
G23     332.1          62.4                9.7 +/-    0.82      10.8 +/-    0.82  0.050 / 0.030
G26     51.4           42.0                7.9 +/-    0.60      11.2 +/-    0.60  0.080 / 0.300
G27     133.0          13.2               11.7 +/-    1.37      30.4 +/-    1.37  0.130 / 0.250
G31     61.1           10.6                6.5 +/-    3.79      17.9 +/-    3.79  0.050 / 0.100