PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/10-11:58:10
G10     92.4           48.2                4.5 +/-    1.05       5.8 +/-    1.05  0.040 / 0.050
G11     296.4          25.2                4.0 +/-    1.11       7.7 +/-    1.11  0.030 / 0.050
G14     315.2          70.0                4.8 +/-    0.68       5.1 +/-    0.68  0.120 / 0.240
G18     295.8          45.1                6.5 +/-    9.02       8.7 +/-    9.02  0.140 / 0.280
G22     306.1          20.9                3.7 +/-    2.00       8.0 +/-    2.00  0.110 / 0.150
G25     94.2           12.4                4.2 +/-    1.76      11.2 +/-    1.76  0.090 / 0.180
G31     171.3          53.6                7.4 +/-    0.43       9.0 +/-    0.43  0.120 / 0.170
G32     24.4           59.8                4.4 +/-    0.68       5.1 +/-    0.68  0.190 / 0.240