PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/29-13:43:10
G02     204.3          31.4                6.9 +/-    0.94      11.7 +/-    0.94  0.080 / 0.080
G06     156.3          69.5                7.4 +/-    0.59       7.9 +/-    0.59  0.050 / 0.080
G12     306.9          15.3                3.7 +/-    1.48       9.1 +/-    1.48  0.030 / 0.040
G17     32.8           51.6                5.6 +/-    1.87       6.9 +/-    1.87  0.060 / 0.050
G19     5.1            64.5                5.8 +/-    0.62       6.4 +/-    0.62  0.040 / 0.030
G24     298.5          37.2                6.1 +/-    3.38       9.3 +/-    3.38  0.040 / 0.030
G28     98.7           37.1                7.0 +/-    1.13      10.8 +/-    1.13  0.030 / 0.030