PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/03-12:28:10
G10     93.2           47.8                5.8 +/-    1.09       7.6 +/-    1.09  0.040 / 0.040
G11     296.0          25.3                5.0 +/-    0.91       9.7 +/-    0.91  0.050 / 0.040
G14     317.9          70.1                5.8 +/-    0.79       6.1 +/-    0.79  0.130 / 0.270
G18     295.0          45.4                8.3 +/-    7.43      11.1 +/-    7.43  0.110 / 0.220
G22     306.2          20.9                4.5 +/-    1.99       9.7 +/-    1.99  0.090 / 0.140
G25     93.6           12.7                5.7 +/-    1.58      14.9 +/-    1.58  0.100 / 0.190
G31     171.2          54.2                8.6 +/-    0.52      10.3 +/-    0.52  0.120 / 0.200
G32     25.1           59.4                5.5 +/-    0.82       6.3 +/-    0.82  0.110 / 0.260