PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/28-07:27:40
G03     186.7          11.0                4.2 +/-    1.71      11.4 +/-    1.71  0.060 / 0.060
G07     305.2          46.8                4.2 +/-    0.94       5.5 +/-    0.94  0.040 / 0.070
G08     135.8          36.6                7.6 +/-    0.74      11.7 +/-    0.74  0.040 / 0.070
G09     312.2          75.8                4.9 +/-    0.66       5.0 +/-    0.66  0.040 / 0.060
G16     42.1           26.1                2.5 +/-    0.53       4.8 +/-    0.53  0.030 / 0.040
G23     140.1          64.8                6.9 +/-    0.62       7.5 +/-    0.62  0.030 / 0.050
G27     84.8           36.9                5.8 +/-    0.52       8.8 +/-    0.52  0.070 / 0.210
G30     282.9          19.5                3.9 +/-    1.02       8.6 +/-    1.02  0.070 / 0.190