PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/30-23:12:50
G08     270.1          20.0                8.5 +/-    2.22      18.6 +/-    2.22  0.150 / 0.300
G10     53.1           59.7                8.6 +/-    0.73       9.8 +/-    0.73  0.170 / 0.240
G14     256.8          63.0                7.7 +/-    1.01       8.6 +/-    1.01  0.320 / 0.240
G18     314.1          29.1                5.8 +/-    1.78      10.4 +/-    1.78  0.190 / 0.420
G20     90.8           39.6                8.1 +/-    1.07      11.9 +/-    1.07  0.060 / 0.050
G21     153.9          19.4               10.1 +/-    2.56      22.6 +/-    2.56  0.050 / 0.040
G24     40.3           10.9                7.9 +/-    2.49      21.5 +/-    2.49  0.170 / 0.310
G27     236.4          19.2                9.8 +/-    5.22      22.1 +/-    5.22  0.090 / 0.260
G31     179.1          25.9               11.3 +/-    1.79      21.6 +/-    1.79  0.180 / 0.210
G32     325.4          75.9                8.1 +/-    0.56       8.3 +/-    0.56  0.200 / 0.360