PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/04-21:13:00
G03     197.5          39.6               12.5 +/-    0.79      18.3 +/-    0.79  0.080 / 0.110
G07     271.0          25.3               12.3 +/-    1.37      23.8 +/-    1.37  0.110 / 0.160
G08     155.8          10.9                1.0 +/-   36.19       2.9 +/-   36.19  0.070 / 0.130
G09     317.2          41.7               11.3 +/-    0.61      16.0 +/-    0.61  0.070 / 0.120
G16     59.0           58.6               11.4 +/-    0.79      13.1 +/-    0.79  0.110 / 0.160
G22     182.7          24.3               11.5 +/-    1.10      23.0 +/-    1.10  0.100 / 0.170
G23     355.5          75.6               11.2 +/-    0.86      11.5 +/-    0.86  0.030 / 0.040
G26     44.5           29.1                8.7 +/-    1.73      15.4 +/-    1.73  0.040 / 0.040
G27     119.6          22.4               10.6 +/-    1.57      22.0 +/-    1.57  0.210 / 0.430