PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/27-00:27:40
G01     223.0          13.8                6.4 +/-    2.16      16.4 +/-    2.16  0.030 / 0.030
G03     275.6          69.0                6.1 +/-    0.74       6.5 +/-    0.74  0.030 / 0.030
G14     91.1           20.8                5.9 +/-    1.46      12.7 +/-    1.46  0.150 / 0.420
G16     149.3          47.4                8.5 +/-    0.97      11.0 +/-    0.97  0.130 / 0.660
G22     209.2          67.3                6.2 +/-    0.69       6.7 +/-    0.69  0.040 / 0.050
G23     310.1          39.6                4.9 +/-    1.00       7.1 +/-    1.00  0.040 / 0.070
G26     93.5           55.8                5.7 +/-    0.62       6.7 +/-    0.62  0.090 / 0.080
G31     46.1           31.0                3.5 +/-    1.02       6.1 +/-    1.02  0.090 / 0.080