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               10.4 +/-    0.62      10.6 +/-    0.62  0.060 / 0.110
G05     166.6          29.0               12.7 +/-    1.45      22.7 +/-    1.45  0.060 / 0.100
G06     41.2           42.2                9.4 +/-    0.96      13.2 +/-    0.96  0.170 / 0.200
G12     316.3          71.6                9.9 +/-    0.89      10.3 +/-    0.89  0.240 / 0.180
G17     83.1           12.9                9.9 +/-    1.85      25.8 +/-    1.85  0.100 / 0.240
G19     68.9           32.7               10.2 +/-    1.33      16.9 +/-    1.33  0.110 / 0.230
G24     230.1          25.3               14.1 +/-    3.01      27.4 +/-    3.01  0.030 / 0.030
G25     317.6          25.6               10.3 +/-    1.87      19.9 +/-    1.87  0.030 / 0.030