PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/08-16:57:50
G03     196.0          37.8               10.1 +/-    0.79      15.3 +/-    0.79  0.150 / 0.410
G07     271.9          25.8               11.8 +/-    1.37      22.7 +/-    1.37  0.190 / 0.450
G08     157.6          10.6               -7.6 +/-   36.04     -20.9 +/-   36.04  0.130 / 0.220
G09     317.7          43.1                9.6 +/-    0.96      13.3 +/-    0.96  0.110 / 0.190
G16     55.5           55.5                9.8 +/-    0.80      11.6 +/-    0.80  0.020 / 0.030
G22     180.1          20.6               10.4 +/-    1.73      22.5 +/-    1.73  0.030 / 0.030
G23     11.6           78.3                8.5 +/-    1.02       8.7 +/-    1.02  0.180 / 0.190
G26     43.9           26.6                8.1 +/-    2.22      15.2 +/-    2.22  0.100 / 0.180
G27     119.0          23.1               11.2 +/-    1.33      23.0 +/-    1.33  0.030 / 0.030