PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/31-17:43:00
G01     316.9          22.8                6.6 +/-    2.44      13.7 +/-    2.44  0.110 / 0.150
G08     250.5          10.2                7.1 +/-    1.97      19.6 +/-    1.97  0.120 / 0.180
G10     88.5           49.1                9.5 +/-    0.52      12.1 +/-    0.52  0.080 / 0.220
G11     296.3          26.1                7.7 +/-    1.33      14.6 +/-    1.33  0.090 / 0.240
G14     317.9          71.5                8.8 +/-    0.36       9.3 +/-    0.36  0.040 / 0.050
G18     295.3          47.2                9.3 +/-    1.03      12.2 +/-    1.03  0.050 / 0.040
G20     110.2          24.8                9.3 +/-    0.97      18.2 +/-    0.97  0.030 / 0.040
G22     303.8          14.6                6.7 +/-    2.37      16.8 +/-    2.37  0.030 / 0.040
G31     179.0          44.3               12.3 +/-    1.58      16.8 +/-    1.58  0.110 / 0.260
G32     14.8           64.3                8.2 +/-    0.68       9.0 +/-    0.68  0.130 / 0.330