PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/11-21:12:30
G07     345.8          62.2               11.3 +/-    0.70      12.6 +/-    0.70  0.140 / 0.090
G08     89.3           54.1               11.0 +/-    0.62      13.3 +/-    0.62  0.130 / 0.080
G09     185.8          65.4               12.0 +/-    0.98      13.1 +/-    0.98  0.150 / 0.140
G11     142.7          17.7               13.3 +/-    5.10      31.0 +/-    5.10  0.100 / 0.100
G23     157.1          30.6               11.9 +/-    0.88      20.5 +/-    0.88  0.030 / 0.030
G27     47.5           26.1                7.5 +/-    1.55      14.3 +/-    1.55  0.040 / 0.030
G28     245.0          36.6               10.6 +/-    1.78      16.4 +/-    1.78  0.040 / 0.040
G30     311.2          43.6                9.6 +/-    0.95      13.3 +/-    0.95  0.030 / 0.030