PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/12-05:57:40
G08     321.1          10.6              -15.2 +/-   23.23     -41.8 +/-   23.23  0.090 / 0.090
G10     306.4          55.0               -1.7 +/-    0.77      -2.0 +/-    0.77  0.090 / 0.090
G14     211.2          16.7                5.4 +/-    3.93      13.0 +/-    3.93  0.030 / 0.040
G15     45.5           22.4                0.0 +/-    1.06       0.1 +/-    1.06  0.040 / 0.040
G20     4.8            64.7               -0.6 +/-    0.56      -0.7 +/-    0.56  0.050 / 0.040
G21     111.0          69.8                1.4 +/-    0.69       1.5 +/-    0.69  0.060 / 0.040
G24     91.5           28.1                1.5 +/-    0.96       2.7 +/-    0.96  0.100 / 0.230
G27     296.3          35.5                0.9 +/-    1.02       1.4 +/-    1.02  0.070 / 0.230
G32     213.2          33.1                4.0 +/-    1.29       6.6 +/-    1.29  0.140 / 0.600