PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/11-19:12:30
G01     223.2          13.8               11.8 +/-    2.06      30.3 +/-    2.06  0.110 / 0.300
G03     266.4          71.1               11.1 +/-    0.65      11.7 +/-    0.65  0.110 / 0.290
G14     90.2           22.4                9.1 +/-    0.81      18.8 +/-    0.81  0.040 / 0.050
G16     143.8          49.3               13.1 +/-    0.70      16.7 +/-    0.70  0.040 / 0.050
G22     204.3          66.1               12.5 +/-    1.03      13.6 +/-    1.03  0.050 / 0.100
G23     311.5          41.6               10.8 +/-    0.70      15.3 +/-    0.70  0.070 / 0.110
G26     88.1           54.5               10.9 +/-    0.42      13.0 +/-    0.42  0.160 / 0.410
G31     47.1           28.0                8.5 +/-    1.71      15.5 +/-    1.71  0.150 / 0.410