PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/04-06:58:10
G07     343.0          61.4                6.2 +/-    0.53       7.0 +/-    0.53  0.090 / 0.090
G08     86.1           51.6                7.8 +/-    0.58       9.7 +/-    0.58  0.070 / 0.100
G11     141.0          17.2                5.9 +/-    1.60      13.8 +/-    1.60  0.040 / 0.050
G23     157.8          37.5                7.9 +/-    1.02      12.0 +/-    1.02  0.030 / 0.040
G27     51.3           29.8                5.3 +/-    0.94       9.3 +/-    0.94  0.070 / 0.110
G28     241.3          32.7                6.8 +/-    2.77      11.3 +/-    2.77  0.060 / 0.090
G30     305.2          37.3                4.2 +/-    0.99       6.4 +/-    0.99  0.060 / 0.090