PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/25-16:27:40
G01     320.9          11.0              -11.1 +/-   29.71     -30.3 +/-   29.71  0.170 / 0.430
G08     266.4          16.8               10.4 +/-    1.97      24.7 +/-    1.97  0.180 / 0.460
G10     65.4           57.7                8.4 +/-    0.96       9.7 +/-    0.96  0.030 / 0.040
G11     311.0          17.3                6.8 +/-    1.89      15.9 +/-    1.89  0.030 / 0.040
G14     272.1          66.9                8.8 +/-    0.69       9.5 +/-    0.69  0.060 / 0.080
G27     228.9          13.7               10.2 +/-    1.73      26.1 +/-    1.73  0.080 / 0.090
G31     177.9          33.1               11.4 +/-    1.41      18.8 +/-    1.41  0.190 / 0.280
G32     348.2          72.6                8.9 +/-    0.41       9.3 +/-    0.41  0.180 / 0.280