PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/07-01:27:50
G01     231.5          24.0                9.1 +/-    1.64      18.3 +/-    1.64  0.180 / 0.260
G03     306.7          59.4                5.7 +/-    1.24       6.5 +/-    1.24  0.190 / 0.260
G14     75.3           32.9                4.8 +/-    1.18       7.9 +/-    1.18  0.070 / 0.130
G16     151.6          35.6                8.4 +/-    1.38      13.2 +/-    1.38  0.080 / 0.130
G18     208.5          13.3                7.5 +/-    6.17      19.4 +/-    6.17  0.100 / 0.130
G22     257.9          74.5                7.0 +/-    0.89       7.2 +/-    0.89  0.090 / 0.130
G23     300.5          31.6                6.4 +/-    1.32      10.9 +/-    1.32  0.220 / 0.580
G26     114.0          50.6                7.2 +/-    0.73       9.0 +/-    0.73  0.130 / 0.410
G31     42.8           39.7                3.9 +/-    1.37       5.8 +/-    1.37  0.040 / 0.040
G32     91.6           11.3                5.2 +/-    1.98      14.0 +/-    1.98  0.040 / 0.030