PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/12-15:12:50
G02     235.4          69.9                9.5 +/-    0.79      10.0 +/-    0.79  0.060 / 0.280
G05     174.2          13.3               10.6 +/-    1.92      27.4 +/-    1.92  0.080 / 0.300
G06     41.1           58.6                8.2 +/-    0.50       9.4 +/-    0.50  0.160 / 0.270
G12     322.5          54.2                7.7 +/-    1.20       9.2 +/-    1.20  0.090 / 0.300
G17     70.5           21.9                6.5 +/-    1.12      13.7 +/-    1.12  0.040 / 0.040
G19     51.6           43.3                8.5 +/-    0.35      11.7 +/-    0.35  0.030 / 0.040
G24     243.8          35.3               11.7 +/-    1.41      18.4 +/-    1.41  0.030 / 0.040
G25     316.4          12.9                6.0 +/-    2.09      15.8 +/-    2.09  0.040 / 0.040