PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/16-03:13:00
G01     225.3          17.8                5.2 +/-    2.71      12.1 +/-    2.71  0.040 / 0.040
G03     292.5          66.4                4.7 +/-    1.43       5.1 +/-    1.43  0.040 / 0.030
G14     83.8           27.1                4.7 +/-    2.09       8.8 +/-    2.09  0.040 / 0.080
G16     145.5          43.8                8.1 +/-    1.10      11.2 +/-    1.10  0.040 / 0.100
G22     225.8          71.6                5.8 +/-    0.79       6.1 +/-    0.79  0.090 / 0.210
G23     307.4          38.1                3.9 +/-    1.38       5.9 +/-    1.38  0.110 / 0.220
G26     99.1           53.7                6.2 +/-    1.07       7.4 +/-    1.07  0.050 / 0.120
G31     45.4           31.8                3.8 +/-    0.87       6.4 +/-    0.87  0.050 / 0.110