PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/01-22:28:00
G03     253.6          69.8                7.8 +/-    1.74       8.3 +/-    1.74  0.050 / 0.060
G09     302.7          19.8                7.4 +/-    1.78      16.4 +/-    1.78  0.040 / 0.060
G14     94.6           20.6                9.3 +/-    1.52      20.1 +/-    1.52  0.100 / 0.250
G16     128.7          55.9               11.4 +/-    1.04      13.4 +/-    1.04  0.090 / 0.250
G22     201.1          59.6                9.1 +/-    0.92      10.4 +/-    0.92  0.060 / 0.070
G23     316.3          46.1                7.1 +/-    1.45       9.5 +/-    1.45  0.050 / 0.090
G26     75.1           52.9                7.9 +/-    0.77       9.7 +/-    0.77  0.050 / 0.050
G31     50.7           22.2                4.4 +/-    0.98       9.1 +/-    0.98  0.040 / 0.040