PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/19-03:27:40
G03     256.5          70.0                5.3 +/-    0.72       5.7 +/-    0.72  0.040 / 0.040
G09     300.7          15.6                2.2 +/-    2.23       5.5 +/-    2.23  0.030 / 0.060
G14     94.4           19.7                4.5 +/-    1.42       9.9 +/-    1.42  0.100 / 0.210
G16     131.4          54.9                7.7 +/-    0.50       9.2 +/-    0.50  0.100 / 0.220
G22     203.0          61.1                6.8 +/-    1.16       7.6 +/-    1.16  0.060 / 0.070
G23     316.8          46.9                3.7 +/-    0.92       4.8 +/-    0.92  0.050 / 0.060
G26     76.5           53.0                5.9 +/-    1.32       7.2 +/-    1.32  0.180 / 0.420
G31     50.5           21.8                1.7 +/-    1.76       3.7 +/-    1.76  0.160 / 0.440