PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/08-23:27:40
G05     47.8           18.7                7.8 +/-    2.21      17.7 +/-    2.21  0.170 / 0.360
G10     234.2          11.7               -5.9 +/-   40.42     -15.8 +/-   40.42  0.190 / 0.340
G13     78.3           35.5               12.4 +/-    1.25      19.5 +/-    1.25  0.500 / 0.370
G15     127.2          50.8               12.3 +/-    0.75      15.4 +/-    0.75  0.240 / 0.300
G16     317.2          10.8               -1.1 +/-   18.65      -2.9 +/-   18.65  0.090 / 0.080
G20     245.8          34.6               12.4 +/-    1.77      19.7 +/-    1.77  0.050 / 0.070
G21     310.7          44.7               11.4 +/-    0.71      15.5 +/-    0.71  0.050 / 0.110
G25     201.2          13.8               14.0 +/-    1.08      35.7 +/-    1.08  0.070 / 0.110
G26     291.0          20.1                7.4 +/-    1.21      16.3 +/-    1.21  0.030 / 0.040
G29     149.0          74.4               11.8 +/-    1.39      12.2 +/-    1.39  0.030 / 0.040