PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/11-17:58:10
G02     304.6          80.4                9.5 +/-    0.42       9.6 +/-    0.42  0.050 / 0.090
G05     166.6          29.0               14.4 +/-    0.90      25.9 +/-    0.90  0.060 / 0.120
G06     41.2           42.2                8.2 +/-    0.66      11.5 +/-    0.66  0.040 / 0.050
G12     316.3          71.6                8.7 +/-    0.92       9.1 +/-    0.92  0.040 / 0.050
G17     83.1           12.9                9.7 +/-    1.39      25.2 +/-    1.39  0.030 / 0.040
G19     68.9           32.7                9.7 +/-    0.86      16.1 +/-    0.86  0.030 / 0.030
G24     230.1          25.3               13.8 +/-    3.19      26.7 +/-    3.19  0.070 / 0.180
G25     317.6          25.6                9.0 +/-    1.71      17.4 +/-    1.71  0.100 / 0.160