PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/18-01:57:50
G01     317.3          23.0                4.6 +/-    0.63       9.4 +/-    0.63  0.050 / 0.060
G08     258.3          11.5               10.5 +/-    2.10      28.3 +/-    2.10  0.050 / 0.070
G10     86.9           49.1                8.7 +/-    0.68      11.1 +/-    0.68  0.160 / 0.300
G11     299.9          23.9                8.1 +/-    1.89      16.2 +/-    1.89  0.160 / 0.260
G14     305.5          70.8                7.9 +/-    1.04       8.3 +/-    1.04  0.050 / 0.040
G18     300.0          44.0                9.3 +/-    0.77      12.8 +/-    0.77  0.050 / 0.050
G20     109.2          25.7                9.3 +/-    1.65      18.0 +/-    1.65  0.090 / 0.190
G22     303.0          12.5                5.6 +/-    3.64      14.7 +/-    3.64  0.090 / 0.200
G31     173.0          47.8                8.9 +/-    0.93      11.5 +/-    0.93  0.190 / 0.490
G32     14.3           64.8                6.2 +/-    0.64       6.7 +/-    0.64  0.170 / 0.560