PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/19-21:13:00
G10     245.8          24.2               12.4 +/-    1.31      24.6 +/-    1.31  0.040 / 0.050
G13     58.4           31.6               10.1 +/-    1.30      17.1 +/-    1.30  0.050 / 0.070
G15     99.0           58.0               11.4 +/-    0.37      13.2 +/-    0.37  0.160 / 0.670
G16     301.3          15.5                8.2 +/-    3.36      20.0 +/-    3.36  0.130 / 0.760
G20     263.1          47.3               12.6 +/-    0.56      16.5 +/-    0.56  0.060 / 0.160
G21     326.8          55.4               10.9 +/-    0.68      12.9 +/-    0.68  0.070 / 0.180
G26     273.7          17.4               11.5 +/-    1.07      26.9 +/-    1.07  0.030 / 0.050
G29     161.4          56.7               12.0 +/-    0.94      14.1 +/-    0.94  0.030 / 0.050