PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/26-12:42:30
G03     224.3          64.7                7.8 +/-    1.02       8.5 +/-    1.02  0.110 / 0.240
G09     306.2          22.0                4.7 +/-    2.99       9.9 +/-    2.99  0.100 / 0.240
G14     102.2          15.1                6.6 +/-    2.13      16.4 +/-    2.13  0.070 / 0.060
G16     112.2          62.1                8.9 +/-    0.92      10.0 +/-    0.92  0.040 / 0.070
G22     188.2          47.7                8.2 +/-    2.14      10.7 +/-    2.14  0.040 / 0.050
G23     326.9          56.4                6.6 +/-    0.56       7.7 +/-    0.56  0.030 / 0.050
G26     60.4           47.2                5.6 +/-    0.42       7.3 +/-    0.42  0.030 / 0.050
G31     55.5           14.0                5.3 +/-    2.16      13.6 +/-    2.16  0.040 / 0.050