PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/19-03:43:00
G03     236.1          67.6                6.3 +/-    0.75       6.8 +/-    0.75  0.110 / 0.320
G09     304.6          20.5                3.3 +/-    0.98       7.1 +/-    0.98  0.170 / 0.390
G14     99.9           15.4                5.0 +/-    2.31      12.3 +/-    2.31  0.130 / 0.210
G16     119.5          59.6                7.1 +/-    0.70       8.1 +/-    0.70  0.120 / 0.260
G22     197.0          54.3                7.8 +/-    0.97       9.4 +/-    0.97  0.040 / 0.050
G23     322.2          52.2                5.5 +/-    0.81       6.8 +/-    0.81  0.040 / 0.060
G26     66.0           50.1                5.0 +/-    0.88       6.3 +/-    0.88  0.040 / 0.040
G31     53.8           16.7                2.8 +/-    1.18       6.7 +/-    1.18  0.050 / 0.060