PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/28-15:57:40
G02     321.8          79.3                7.6 +/-    0.53       7.7 +/-    0.53  0.090 / 0.260
G05     165.9          31.6               10.0 +/-    1.10      17.0 +/-    1.10  0.120 / 0.270
G06     41.1           40.2                6.4 +/-    0.43       9.3 +/-    0.43  0.030 / 0.040
G12     313.4          70.1                7.7 +/-    0.79       8.2 +/-    0.79  0.030 / 0.030
G17     83.5           14.4                7.9 +/-    1.08      19.9 +/-    1.08  0.110 / 0.180
G19     74.5           26.1                9.4 +/-    1.24      17.9 +/-    1.24  0.110 / 0.160
G24     230.2          23.5               10.6 +/-    2.20      21.5 +/-    2.20  0.070 / 0.110
G25     317.1          26.8                5.0 +/-    1.94       9.4 +/-    1.94  0.040 / 0.120