PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/25-17:58:00
G01     294.5          39.1                9.7 +/-    4.68      14.4 +/-    4.68  0.050 / 0.060
G03     311.2          16.4                8.3 +/-    2.15      20.0 +/-    2.15  0.050 / 0.070
G10     117.4          31.4               10.6 +/-    1.22      18.0 +/-    1.22  0.050 / 0.060
G11     270.5          26.5                9.5 +/-    1.59      17.9 +/-    1.59  0.050 / 0.050
G14     18.2           60.9                9.5 +/-    1.11      10.7 +/-    1.11  0.020 / 0.020
G22     313.3          36.4                9.9 +/-    1.32      15.3 +/-    1.32  0.020 / 0.020
G25     70.2           18.9                9.9 +/-    1.37      22.3 +/-    1.37  0.070 / 0.070
G26     158.4          11.0                3.3 +/-   38.32       9.1 +/-   38.32  0.060 / 0.070
G31     142.8          77.1               12.0 +/-    0.53      12.3 +/-    0.53  0.070 / 0.130
G32     48.5           43.8                9.5 +/-    0.82      13.1 +/-    0.82  0.090 / 0.130