PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/23-23:12:30
G03     237.3          67.7                8.7 +/-    0.62       9.4 +/-    0.62  0.080 / 0.050
G09     305.8          23.4                6.7 +/-    1.23      13.5 +/-    1.23  0.050 / 0.050
G14     99.0           17.6                8.3 +/-    1.97      19.5 +/-    1.97  0.130 / 0.250
G16     118.6          59.6               10.3 +/-    0.48      11.8 +/-    0.48  0.140 / 0.320
G22     196.8          54.0               11.3 +/-    1.31      13.6 +/-    1.31  0.030 / 0.040
G23     320.6          50.5                8.3 +/-    0.66      10.4 +/-    0.66  0.030 / 0.030
G26     66.4           50.4                7.3 +/-    0.78       9.2 +/-    0.78  0.050 / 0.040
G31     53.5           17.8                6.1 +/-    2.79      14.2 +/-    2.79  0.050 / 0.040