PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/10-13:57:30
G02     205.4          32.3                8.8 +/-    1.12      14.8 +/-    1.12  0.110 / 0.110
G06     152.4          71.9               11.0 +/-    0.80      11.5 +/-    0.80  0.140 / 0.110
G12     309.7          20.1                6.3 +/-    1.40      13.9 +/-    1.40  0.080 / 0.230
G17     39.0           46.6                7.7 +/-    0.33      10.1 +/-    0.33  0.100 / 0.240
G19     353.9          66.0                6.6 +/-    0.58       7.1 +/-    0.58  0.040 / 0.030
G24     293.3          40.6                6.7 +/-    0.60       9.7 +/-    0.60  0.050 / 0.050
G28     104.0          30.6               10.7 +/-    0.77      18.5 +/-    0.77  0.030 / 0.040