PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/23-04:43:10
G01     227.9          20.2                9.3 +/-    2.38      20.4 +/-    2.38  0.230 / 0.190
G03     298.3          64.6                5.9 +/-    0.56       6.5 +/-    0.56  0.190 / 0.310
G14     81.2           28.4                5.2 +/-    1.25       9.5 +/-    1.25  0.080 / 0.150
G16     148.7          40.4                7.1 +/-    0.41      10.2 +/-    0.41  0.090 / 0.150
G22     234.8          73.4                7.0 +/-    0.44       7.3 +/-    0.44  0.060 / 0.090
G23     305.5          36.7                6.8 +/-    1.36      10.4 +/-    1.36  0.060 / 0.100
G26     105.3          52.9                7.0 +/-    0.47       8.5 +/-    0.47  0.030 / 0.040
G31     44.4           34.6                4.5 +/-    1.45       7.1 +/-    1.45  0.030 / 0.030