PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/22-00:12:30
G07     331.5          57.3                7.9 +/-    0.61       9.2 +/-    0.61  0.080 / 0.150
G08     102.3          51.8                8.1 +/-    0.75      10.0 +/-    0.75  0.100 / 0.160
G09     196.5          75.4                9.4 +/-    0.74       9.7 +/-    0.74  0.030 / 0.040
G11     147.8          11.8               11.7 +/-    5.23      31.3 +/-    5.23  0.040 / 0.050
G16     46.5           9.7                 4.1 +/-    1.92      11.6 +/-    1.92  0.100 / 0.730
G23     155.0          42.3                9.6 +/-    0.52      13.5 +/-    0.52  0.140 / 0.370
G27     55.2           31.5                5.8 +/-    2.02       9.9 +/-    2.02  0.040 / 0.040
G28     236.9          29.5               10.3 +/-    0.93      18.2 +/-    0.93  0.040 / 0.040
G30     303.2          37.3                7.6 +/-    1.94      11.6 +/-    1.94  0.030 / 0.020