PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/19-06:27:50
G03     192.3          22.6                5.1 +/-    1.78      10.6 +/-    1.78  0.030 / 0.090
G07     290.1          37.8                5.7 +/-    1.59       8.7 +/-    1.59  0.050 / 0.110
G08     140.0          28.2                7.3 +/-    1.85      13.2 +/-    1.85  0.060 / 0.080
G09     323.2          68.3                4.7 +/-    0.54       5.1 +/-    0.54  0.070 / 0.090
G16     42.9           37.8                3.6 +/-    0.93       5.4 +/-    0.93  0.110 / 0.240
G23     109.0          81.0                4.1 +/-    0.63       4.2 +/-    0.63  0.090 / 0.260
G26     43.6           11.3                2.4 +/-    1.81       6.5 +/-    1.81  0.030 / 0.030
G27     101.7          33.5                6.9 +/-    0.95      11.3 +/-    0.95  0.020 / 0.030
G30     272.7          10.9              -13.0 +/-   18.68     -35.6 +/-   18.68  0.040 / 0.110