PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/18-22:28:00
G01     232.4          25.2                9.1 +/-    2.03      17.7 +/-    2.03  0.040 / 0.030
G03     308.8          57.5                7.1 +/-    1.45       8.2 +/-    1.45  0.040 / 0.030
G14     72.5           35.5                5.8 +/-    1.38       9.1 +/-    1.38  0.070 / 0.110
G16     152.6          33.9               10.4 +/-    1.29      16.8 +/-    1.29  0.050 / 0.110
G22     264.2          74.5                8.4 +/-    0.91       8.6 +/-    0.91  0.040 / 0.040
G23     298.6          29.4                7.5 +/-    3.08      13.4 +/-    3.08  0.050 / 0.040
G26     117.3          49.6                9.1 +/-    0.60      11.5 +/-    0.60  0.100 / 0.130
G31     42.2           42.4                5.6 +/-    0.96       7.8 +/-    0.96  0.090 / 0.150
G32     90.4           11.8                7.6 +/-    1.80      20.4 +/-    1.80  0.040 / 0.040