PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/01-05:27:50
G01     90.6           31.6                7.1 +/-    0.34      12.1 +/-    0.34  0.070 / 0.130
G07     125.5          43.8                8.1 +/-    1.71      11.1 +/-    1.71  0.080 / 0.100
G11     67.1           39.0                4.6 +/-    0.47       6.8 +/-    0.47  0.070 / 0.060
G13     294.6          36.4                5.3 +/-    0.96       8.2 +/-    0.96  0.050 / 0.070
G17     213.2          56.0                7.5 +/-    0.93       8.9 +/-    0.93  0.030 / 0.030
G19     214.4          24.4                8.9 +/-    2.62      17.7 +/-    2.62  0.030 / 0.040
G28     344.0          61.8                4.0 +/-    0.74       4.5 +/-    0.74  0.050 / 0.050
G30     99.2           77.9                6.0 +/-    0.61       6.1 +/-    0.61  0.040 / 0.040