PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/16-16:58:00
G02     231.1          69.4                6.2 +/-    0.56       6.6 +/-    0.56  0.190 / 0.360
G05     173.8          12.3               10.3 +/-    5.55      27.3 +/-    5.55  0.220 / 0.290
G06     42.3           60.1                6.8 +/-    0.61       7.7 +/-    0.61  0.110 / 0.100
G12     322.8          52.7                6.5 +/-    0.37       7.9 +/-    0.37  0.100 / 0.110
G17     68.3           23.5                6.5 +/-    2.50      13.1 +/-    2.50  0.040 / 0.040
G19     49.8           44.1                6.9 +/-    1.52       9.4 +/-    1.52  0.040 / 0.040
G24     247.6          36.9                8.1 +/-    1.33      12.4 +/-    1.33  0.040 / 0.030