PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/24-22:27:40
G10     293.0          51.1               11.8 +/-    1.07      14.7 +/-    1.07  0.040 / 0.050
G15     47.0           32.2                7.7 +/-    0.71      12.8 +/-    0.71  0.050 / 0.060
G20     343.7          65.3                8.8 +/-    0.60       9.6 +/-    0.60  0.050 / 0.100
G21     77.9           76.6               11.0 +/-    0.82      11.3 +/-    0.82  0.070 / 0.100
G24     103.3          24.9                9.6 +/-    1.10      18.8 +/-    1.10  0.080 / 0.170
G27     305.2          32.2                8.9 +/-    1.67      15.0 +/-    1.67  0.070 / 0.160
G29     167.9          11.5               13.6 +/-    1.98      36.8 +/-    1.98  0.040 / 0.080
G32     208.6          27.7               12.7 +/-    1.89      23.3 +/-    1.89  0.050 / 0.100