PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/20-01:58:10
G01     315.2          26.3                6.0 +/-    1.21      11.5 +/-    1.21  0.100 / 0.180
G10     92.4           46.5                7.6 +/-    0.72      10.1 +/-    0.72  0.090 / 0.200
G11     295.8          25.3                6.1 +/-    1.41      11.9 +/-    1.41  0.040 / 0.050
G14     318.6          70.9                7.0 +/-    0.70       7.4 +/-    0.70  0.050 / 0.040
G18     294.9          46.4                8.4 +/-    5.20      11.1 +/-    5.20  0.060 / 0.070
G20     112.5          22.7                7.6 +/-    0.85      15.7 +/-    0.85  0.050 / 0.110
G22     304.9          15.4                4.8 +/-    1.81      11.9 +/-    1.81  0.030 / 0.030
G25     95.0           11.7                4.3 +/-   12.29      11.5 +/-   12.29  0.030 / 0.030
G31     171.4          52.5                8.6 +/-    0.64      10.6 +/-    0.64  0.170 / 0.260
G32     20.8           61.7                5.6 +/-    0.70       6.3 +/-    0.70  0.180 / 0.260