PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/18-22:13:10
G10     270.5          41.4               12.5 +/-    1.43      17.8 +/-    1.43  0.260 / 0.790
G13     40.3           15.1                9.0 +/-    2.94      22.4 +/-    2.94  0.190 / 1.010
G15     56.6           47.0                9.2 +/-    0.76      12.0 +/-    0.76  0.160 / 0.270
G16     276.5          11.6               11.4 +/-    7.04      30.7 +/-    7.04  0.150 / 0.250
G20     303.8          61.5               10.4 +/-    0.60      11.7 +/-    0.60  0.050 / 0.070
G21     7.8            72.9               10.9 +/-    1.03      11.3 +/-    1.03  0.050 / 0.090
G24     119.4          15.7               12.3 +/-    1.37      30.1 +/-    1.37  0.050 / 0.050
G27     317.8          20.5               10.1 +/-    2.87      21.9 +/-    2.87  0.040 / 0.050
G29     167.4          28.5               11.9 +/-    1.16      21.4 +/-    1.16  0.110 / 0.200
G32     204.5          11.1               -2.0 +/-   47.76      -5.5 +/-   47.76  0.110 / 0.250