PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/11-03:58:10
G01     217.6          9.8                 5.3 +/-    6.22      15.0 +/-    6.22  0.040 / 0.050
G03     258.6          70.2                4.2 +/-    0.82       4.4 +/-    0.82  0.040 / 0.040
G09     300.1          14.8                2.8 +/-    2.35       7.0 +/-    2.35  0.100 / 0.210
G14     93.9           19.9                5.2 +/-    0.97      11.4 +/-    0.97  0.100 / 0.210
G16     132.8          54.2                9.3 +/-    1.23      11.2 +/-    1.23  0.350 / 0.560
G22     203.7          61.9                6.6 +/-    1.23       7.4 +/-    1.23  0.280 / 0.490
G23     316.4          46.6                2.5 +/-    0.91       3.3 +/-    0.91  0.080 / 0.060
G26     77.9           53.2                4.7 +/-    0.85       5.7 +/-    0.85  0.040 / 0.080
G31     50.1           22.3                2.7 +/-    0.66       5.7 +/-    0.66  0.090 / 0.200