PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/04-15:42:50
G02     233.0          69.8                7.4 +/-    1.37       7.8 +/-    1.37  0.060 / 0.210
G05     173.6          13.1               13.6 +/-    3.27      35.3 +/-    3.27  0.050 / 0.260
G06     41.9           58.6                7.2 +/-    0.49       8.3 +/-    0.49  0.120 / 0.130
G12     323.2          54.8                6.8 +/-    0.53       8.1 +/-    0.53  0.110 / 0.170
G17     69.7           22.0                6.7 +/-    1.23      14.1 +/-    1.23  0.040 / 0.050
G19     50.7           43.6                6.0 +/-    0.85       8.3 +/-    0.85  0.030 / 0.060
G24     245.8          36.2                8.6 +/-    1.28      13.3 +/-    1.28  0.040 / 0.040
G25     316.1          11.0               -4.1 +/-   29.55     -11.1 +/-   29.55  0.040 / 0.040