PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/11-07:13:00
G02     24.8           62.9                2.4 +/-    0.82       2.6 +/-    0.82  0.020 / 0.040
G05     151.8          52.1                7.9 +/-    1.06       9.7 +/-    1.06  0.020 / 0.030
G06     47.4           27.3                2.1 +/-    1.81       4.0 +/-    1.81  0.030 / 0.040
G12     239.1          78.3                3.6 +/-    0.78       3.7 +/-    0.78  0.030 / 0.040
G19     91.1           16.3                5.3 +/-    2.12      12.8 +/-    2.12  0.410 / 0.560
G20     199.9          11.1               -5.0 +/-   15.21     -13.7 +/-   15.21  0.250 / 0.500
G24     216.5          10.8                4.3 +/-    2.23      11.9 +/-    2.23  0.040 / 0.060
G25     310.0          44.2                1.4 +/-    2.15       1.9 +/-    2.15  0.050 / 0.070
G29     300.0          21.3                2.8 +/-    1.52       5.9 +/-    1.52  0.110 / 0.190