PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/19-20:12:40
G01     235.1          27.8               10.8 +/-    1.27      19.9 +/-    1.27  0.050 / 0.040
G03     311.7          54.4                9.8 +/-    1.22      11.7 +/-    1.22  0.050 / 0.030
G14     69.5           36.8               10.3 +/-    0.80      15.9 +/-    0.80  0.080 / 0.080
G16     154.9          30.2               12.1 +/-    1.57      21.0 +/-    1.57  0.090 / 0.080
G22     276.1          73.9               11.3 +/-    0.57      11.7 +/-    0.57  0.080 / 0.060
G23     295.6          26.6               12.2 +/-    3.01      23.1 +/-    3.01  0.080 / 0.070
G26     123.4          47.3               13.0 +/-    0.96      17.0 +/-    0.96  0.090 / 0.180
G31     41.3           46.9                8.4 +/-    0.79      11.0 +/-    0.79  0.120 / 0.170
G32     87.7           13.8                9.6 +/-    1.75      24.7 +/-    1.75  0.060 / 0.040