PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/16-07:57:50
G03     189.7          18.3                4.3 +/-    1.33       9.8 +/-    1.33  0.050 / 0.070
G07     295.9          42.3                3.1 +/-    0.61       4.4 +/-    0.61  0.050 / 0.080
G08     143.5          29.0                5.7 +/-    0.86      10.1 +/-    0.86  0.040 / 0.090
G09     319.8          66.4                0.7 +/-    0.64       0.8 +/-    0.64  0.040 / 0.080
G16     42.5           34.4                2.0 +/-    1.32       3.2 +/-    1.32  0.030 / 0.040
G23     127.3          72.9                5.3 +/-    0.62       5.6 +/-    0.62  0.040 / 0.040
G27     96.1           34.8                3.3 +/-    0.59       5.3 +/-    0.59  0.060 / 0.110
G30     276.5          14.7                4.2 +/-    1.50      10.5 +/-    1.50  0.050 / 0.120