PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/07-04:27:50
G01     266.3          41.6                4.9 +/-    1.35       7.0 +/-    1.35  0.040 / 0.060
G03     316.2          31.2                5.4 +/-    0.97       9.3 +/-    0.97  0.040 / 0.060
G10     130.5          13.9                5.6 +/-    1.43      14.2 +/-    1.43  0.040 / 0.070
G11     249.5          18.4                7.1 +/-    1.48      16.3 +/-    1.48  0.040 / 0.090
G14     43.9           50.0                3.2 +/-    1.33       4.0 +/-    1.33  0.060 / 0.100
G18     231.1          37.6                6.2 +/-    1.03       9.5 +/-    1.03  0.060 / 0.100
G22     313.8          52.7                5.1 +/-    1.20       6.3 +/-    1.20  0.240 / 0.370
G25     51.9           16.4                2.8 +/-    1.05       6.8 +/-    1.05  0.240 / 0.360
G31     52.1           70.4                3.7 +/-    0.66       3.9 +/-    0.66  0.170 / 0.320
G32     65.0           32.0                3.2 +/-    0.27       5.3 +/-    0.27  0.190 / 0.280