PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/19-14:42:40
G02     234.4          69.8                5.7 +/-    0.73       6.0 +/-    0.73  0.120 / 0.080
G05     174.7          12.6                7.0 +/-    2.88      18.3 +/-    2.88  0.100 / 0.070
G06     41.3           59.3                5.0 +/-    0.41       5.7 +/-    0.41  0.030 / 0.050
G12     322.3          53.1                4.6 +/-    0.73       5.6 +/-    0.73  0.040 / 0.040
G17     70.0           22.1                5.1 +/-    1.22      10.6 +/-    1.22  0.190 / 0.350
G19     51.0           43.6                5.7 +/-    1.03       7.8 +/-    1.03  0.220 / 0.330
G24     244.2          35.7                6.8 +/-    1.58      10.7 +/-    1.58  0.210 / 0.430
G25     316.2          12.6                2.2 +/-   13.22       5.9 +/-   13.22  0.200 / 0.320