PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/05-19:58:00
G03     237.1          69.0               11.7 +/-    0.50      12.4 +/-    0.50  0.030 / 0.040
G09     302.0          15.8                9.8 +/-    1.07      23.9 +/-    1.07  0.040 / 0.040
G14     98.0           16.5               11.7 +/-    1.07      28.1 +/-    1.07  0.120 / 0.260
G16     132.4          57.5               13.3 +/-    0.36      15.4 +/-    0.36  0.100 / 0.300
G22     195.1          57.0               12.6 +/-    0.56      14.7 +/-    0.56  0.030 / 0.040
G23     318.5          48.4               11.0 +/-    0.94      14.2 +/-    0.94  0.030 / 0.050
G26     72.0           52.5                9.9 +/-    1.08      12.1 +/-    1.08  0.130 / 0.260
G31     51.3           20.9                8.8 +/-    2.82      19.1 +/-    2.82  0.210 / 0.340