PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/18-05:42:50
G03     202.5          44.3                6.8 +/-    1.07       9.2 +/-    1.07  0.070 / 0.160
G07     269.4          24.9                5.6 +/-    2.79      10.9 +/-    2.79  0.090 / 0.170
G08     154.3          10.6               -8.7 +/-   29.45     -24.0 +/-   29.45  0.100 / 0.180
G09     319.0          46.2                5.0 +/-    0.69       6.6 +/-    0.69  0.080 / 0.210
G16     60.1           57.4                6.1 +/-    0.78       7.1 +/-    0.78  0.070 / 0.120
G22     184.9          27.5                4.8 +/-    0.95       8.9 +/-    0.95  0.090 / 0.140
G23     345.6          72.2                4.9 +/-    0.22       5.1 +/-    0.22  0.030 / 0.030
G26     45.1           30.3                3.5 +/-    1.82       6.2 +/-    1.82  0.040 / 0.030
G27     123.8          20.3                5.9 +/-    1.19      12.9 +/-    1.19  0.030 / 0.040