PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/18-03:43:00
G03     241.1          68.6                4.4 +/-    1.09       4.7 +/-    1.09  0.110 / 0.280
G09     303.6          19.1                3.3 +/-    1.26       7.3 +/-    1.26  0.120 / 0.260
G14     98.5           16.5                5.3 +/-    1.97      12.7 +/-    1.97  0.070 / 0.180
G16     123.2          58.5                6.3 +/-    0.44       7.2 +/-    0.44  0.110 / 0.150
G22     198.4          56.2                5.3 +/-    0.66       6.2 +/-    0.66  0.040 / 0.040
G23     320.7          50.7                4.4 +/-    1.37       5.5 +/-    1.37  0.030 / 0.040
G26     68.7           51.0                4.7 +/-    0.61       5.9 +/-    0.61  0.040 / 0.050
G31     52.9           18.0                2.6 +/-    2.90       6.1 +/-    2.90  0.040 / 0.050