PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/27-14:58:10
G02     330.3          78.7                4.0 +/-    0.40       4.1 +/-    0.40  0.120 / 0.190
G05     166.9          32.6                6.3 +/-    1.98      10.4 +/-    1.98  0.140 / 0.200
G06     42.1           38.1                3.5 +/-    1.05       5.3 +/-    1.05  0.090 / 0.090
G12     306.8          75.4                3.7 +/-    0.27       3.8 +/-    0.27  0.090 / 0.120
G19     73.8           30.1                5.2 +/-    2.10       9.1 +/-    2.10  0.020 / 0.020
G24     224.6          21.0                6.3 +/-    1.95      13.6 +/-    1.95  0.030 / 0.030
G25     316.5          32.6                5.0 +/-    1.99       8.3 +/-    1.99  0.050 / 0.060