PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/08-23:57:40
G08     291.8          23.5                9.0 +/-    0.68      18.3 +/-    0.68  0.130 / 0.120
G10     8.9            63.0                8.1 +/-    1.09       9.0 +/-    1.09  0.070 / 0.090
G14     230.0          45.8               10.8 +/-    2.27      14.3 +/-    2.27  0.090 / 0.100
G18     317.6          10.8               -7.3 +/-   17.05     -20.1 +/-   17.05  0.110 / 0.080
G20     65.8           52.1                9.3 +/-    1.28      11.4 +/-    1.28  0.090 / 0.120
G21     146.8          40.1               10.4 +/-    0.79      15.1 +/-    0.79  0.100 / 0.180
G24     53.9           23.8                8.2 +/-    2.39      16.5 +/-    2.39  0.040 / 0.070
G27     255.0          31.5                9.0 +/-    2.45      15.2 +/-    2.45  0.040 / 0.080
G32     248.0          69.4                9.0 +/-    0.65       9.6 +/-    0.65  0.080 / 0.160