PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/03-20:27:30
G01     318.1          19.8                8.4 +/-    1.98      18.6 +/-    1.98  0.130 / 0.210
G10     82.7           52.6                8.2 +/-    0.92      10.0 +/-    0.92  0.150 / 0.300
G11     301.3          24.0                7.1 +/-    0.81      14.1 +/-    0.81  0.060 / 0.050
G14     305.7          71.1                8.7 +/-    0.63       9.1 +/-    0.63  0.040 / 0.060
G18     104.3          26.1                9.0 +/-    2.01      17.2 +/-    2.01  0.030 / 0.020
G22     301.5          11.4                3.7 +/-   11.43      10.1 +/-   11.43  0.030 / 0.020
G31     177.7          42.6               11.7 +/-    0.90      16.3 +/-    0.90  0.110 / 0.220
G32     8.8            66.6                7.9 +/-    0.76       8.5 +/-    0.76  0.150 / 0.220