PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/24-15:58:10
G02     217.0          57.4                8.1 +/-    1.02       9.4 +/-    1.02  0.140 / 0.060
G06     54.5           71.6                8.6 +/-    0.43       9.0 +/-    0.43  0.100 / 0.100
G12     320.3          41.4                7.7 +/-    0.96      10.9 +/-    0.96  0.050 / 0.060
G17     58.8           30.5                6.4 +/-    2.66      11.1 +/-    2.66  0.040 / 0.070
G19     35.4           51.7                9.1 +/-    1.86      11.3 +/-    1.86  0.050 / 0.030
G24     262.3          41.8                9.0 +/-    3.15      12.7 +/-    3.15  0.040 / 0.030
G28     122.8          13.6                8.6 +/-    2.40      22.2 +/-    2.40  0.040 / 0.030