PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/06-17:13:10
G07     59.2           66.9               11.3 +/-    0.98      12.1 +/-    0.98  0.070 / 0.160
G08     53.3           42.1               10.3 +/-    0.94      14.4 +/-    0.94  0.110 / 0.190
G09     179.4          41.4               11.1 +/-    0.50      15.8 +/-    0.50  0.040 / 0.030
G11     120.8          34.0               11.7 +/-    1.07      18.9 +/-    1.07  0.030 / 0.030
G17     199.1          11.4               -2.4 +/-   22.21      -6.5 +/-   22.21  0.050 / 0.030
G18     105.1          14.9               11.0 +/-    1.47      27.6 +/-    1.47  0.030 / 0.040
G23     160.4          10.6                9.5 +/-    1.48      26.0 +/-    1.48  0.110 / 0.370
G27     38.1           11.4                9.1 +/-    0.82      24.7 +/-    0.82  0.120 / 0.440
G28     266.2          47.0               10.7 +/-    3.99      14.1 +/-    3.99  0.250 / 0.230
G30     331.5          59.6                9.1 +/-    0.73      10.4 +/-    0.73  0.210 / 0.270