PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/24-14:57:40
G02     216.5          56.6                9.3 +/-    0.95      10.9 +/-    0.95  0.060 / 0.100
G06     58.2           73.9                9.7 +/-    0.71      10.0 +/-    0.71  0.060 / 0.100
G12     317.8          35.3                7.5 +/-    1.08      11.8 +/-    1.08  0.040 / 0.090
G17     54.5           35.2                6.6 +/-    1.01      10.4 +/-    1.01  0.060 / 0.100
G19     40.2           48.1                7.4 +/-    0.53       9.6 +/-    0.53  0.070 / 0.160
G24     267.1          41.2               10.5 +/-    2.11      15.1 +/-    2.11  0.070 / 0.210
G28     120.3          20.0                8.8 +/-    0.66      19.4 +/-    0.66  0.040 / 0.030