PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/19-04:43:10
G03     234.4          66.5                5.3 +/-    0.57       5.7 +/-    0.57  0.120 / 0.280
G09     307.0          25.4                3.4 +/-    0.93       6.7 +/-    0.93  0.120 / 0.370
G14     101.9          13.0                5.8 +/-    2.09      15.2 +/-    2.09  0.050 / 0.040
G16     116.9          61.0                5.9 +/-    0.48       6.6 +/-    0.48  0.040 / 0.040
G22     194.6          52.8                6.8 +/-    0.76       8.3 +/-    0.76  0.040 / 0.050
G23     320.9          50.7                4.7 +/-    0.80       5.9 +/-    0.80  0.050 / 0.060
G26     63.9           49.3                5.0 +/-    0.68       6.3 +/-    0.68  0.050 / 0.040
G31     54.0           16.8                3.2 +/-    2.65       7.6 +/-    2.65  0.040 / 0.040