PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/23-17:58:10
G03     196.0          39.2               12.5 +/-    1.05      18.5 +/-    1.05  0.080 / 0.190
G07     270.2          24.6               11.4 +/-    1.67      22.5 +/-    1.67  0.080 / 0.120
G09     316.9          41.1                9.7 +/-    0.99      13.8 +/-    0.99  0.030 / 0.030
G16     58.6           57.5               12.3 +/-    0.75      14.3 +/-    0.75  0.030 / 0.030
G22     181.3          23.3               12.2 +/-    1.31      24.8 +/-    1.31  0.070 / 0.060
G23     1.0            76.4               10.9 +/-    0.37      11.2 +/-    0.37  0.060 / 0.060
G26     44.5           28.6                9.8 +/-    1.32      17.7 +/-    1.32  0.070 / 0.130
G27     120.6          21.8               13.8 +/-    1.79      29.0 +/-    1.79  0.080 / 0.120