PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/08-19:58:00
G03     223.3          65.2                8.7 +/-    1.15       9.5 +/-    1.15  0.040 / 0.060
G09     305.1          19.8                7.1 +/-    0.73      15.6 +/-    0.73  0.040 / 0.050
G14     102.4          13.1               11.4 +/-    2.87      29.6 +/-    2.87  0.030 / 0.050
G16     121.8          61.5               13.0 +/-    0.54      14.6 +/-    0.54  0.040 / 0.040
G22     191.5          51.1               10.3 +/-    0.54      12.8 +/-    0.54  0.140 / 0.400
G23     323.0          52.9                9.0 +/-    0.66      10.9 +/-    0.66  0.130 / 0.330
G26     63.7           49.6                9.5 +/-    1.10      12.0 +/-    1.10  0.170 / 0.180
G31     54.2           16.7                7.8 +/-    2.03      18.5 +/-    2.03  0.150 / 0.170