PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/13-04:28:00
G07     355.6          64.6                3.6 +/-    0.61       4.0 +/-    0.61  0.030 / 0.030
G08     75.6           50.5                4.2 +/-    0.70       5.3 +/-    0.70  0.030 / 0.030
G09     177.2          57.9                5.0 +/-    0.93       5.8 +/-    0.93  0.070 / 0.120
G11     136.6          21.2                4.6 +/-    2.54       9.8 +/-    2.54  0.070 / 0.150
G23     159.4          32.0                4.8 +/-    1.23       8.0 +/-    1.23  0.070 / 0.100
G27     47.2           26.6                3.0 +/-    2.16       5.6 +/-    2.16  0.040 / 0.090
G28     246.4          36.6                5.6 +/-    1.79       8.7 +/-    1.79  0.050 / 0.030
G30     309.9          41.4                3.2 +/-    1.22       4.6 +/-    1.22  0.040 / 0.030