PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/07-00:42:30
G02     203.6          39.3               13.0 +/-    0.77      19.1 +/-    0.77  0.130 / 0.160
G06     155.2          72.1               12.6 +/-    0.49      13.2 +/-    0.49  0.160 / 0.260
G12     309.1          17.1               10.3 +/-    2.04      24.4 +/-    2.04  0.040 / 0.040
G17     35.0           50.3               10.4 +/-    0.79      13.0 +/-    0.79  0.050 / 0.040
G19     6.4            63.6               10.4 +/-    0.46      11.5 +/-    0.46  0.030 / 0.030
G24     294.8          39.3               12.4 +/-    4.14      18.3 +/-    4.14  0.040 / 0.030
G28     105.7          28.7               12.7 +/-    1.45      22.9 +/-    1.45  0.080 / 0.130