PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/05-17:12:40
G07     53.1           67.4               10.8 +/-    1.21      11.6 +/-    1.21  0.050 / 0.040
G08     55.5           43.7               11.2 +/-    1.29      15.4 +/-    1.29  0.040 / 0.040
G09     179.8          43.9               12.9 +/-    0.71      17.6 +/-    0.71  0.030 / 0.030
G11     123.1          32.6               11.4 +/-    0.73      18.9 +/-    0.73  0.030 / 0.040
G18     107.1          13.7               10.7 +/-    1.77      27.5 +/-    1.77  0.180 / 0.120
G23     160.3          12.8               10.1 +/-    2.77      26.5 +/-    2.77  0.140 / 0.080
G27     38.7           13.3                5.6 +/-    1.43      14.5 +/-    1.43  0.120 / 0.300
G28     263.2          45.6               11.7 +/-    2.75      15.6 +/-    2.75  0.100 / 0.340
G30     328.9          57.7               10.5 +/-    0.48      12.2 +/-    0.48  0.140 / 0.370