PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/03-09:43:10
G07     18.9           68.4                2.1 +/-    0.64       2.2 +/-    0.64  0.050 / 0.050
G08     59.6           45.3                1.0 +/-    0.68       1.3 +/-    0.68  0.040 / 0.040
G09     176.7          45.8                4.3 +/-    1.14       5.7 +/-    1.14  0.020 / 0.040
G11     127.7          28.5                5.0 +/-    0.99       9.0 +/-    0.99  0.030 / 0.030
G18     113.1          10.6               -4.2 +/-   22.28     -11.7 +/-   22.28  0.110 / 0.140
G23     160.8          20.0                3.3 +/-    1.25       7.3 +/-    1.25  0.080 / 0.170
G27     40.4           16.9                1.4 +/-    0.96       3.3 +/-    0.96  0.110 / 0.240
G28     259.5          45.7                3.0 +/-    1.47       4.0 +/-    1.47  0.090 / 0.270
G30     319.2          49.4                2.9 +/-    1.20       3.7 +/-    1.20  0.150 / 0.340