PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/03-22:28:00
G10     249.3          27.2               11.7 +/-    2.49      21.7 +/-    2.49  0.070 / 0.120
G13     54.3           29.5                7.7 +/-    0.97      13.5 +/-    0.97  0.070 / 0.130
G15     89.1           57.7               10.0 +/-    0.50      11.6 +/-    0.50  0.040 / 0.070
G16     297.5          15.6                8.8 +/-    3.60      21.5 +/-    3.60  0.050 / 0.050
G20     268.2          49.7               11.9 +/-    0.89      15.0 +/-    0.89  0.030 / 0.050
G21     331.6          58.4                9.1 +/-    0.60      10.4 +/-    0.60  0.040 / 0.060
G26     269.7          16.0               11.3 +/-    3.78      27.5 +/-    3.78  0.070 / 0.190
G29     162.8          51.4               10.1 +/-    0.49      12.5 +/-    0.49  0.070 / 0.180