PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/11-03:42:40
G05     50.1           13.1                6.0 +/-    1.72      15.6 +/-    1.72  0.070 / 0.050
G10     238.1          16.0               21.2 +/-    2.13      51.4 +/-    2.13  0.050 / 0.060
G13     70.8           35.1               10.3 +/-    1.53      16.3 +/-    1.53  0.200 / 0.320
G15     116.5          54.4               11.5 +/-    0.95      13.9 +/-    0.95  0.120 / 0.230
G16     313.9          11.8               11.0 +/-   10.28      29.4 +/-   10.28  0.080 / 0.110
G20     251.4          39.6               15.7 +/-    1.32      23.0 +/-    1.32  0.050 / 0.110
G21     317.7          49.8               13.6 +/-    1.02      17.2 +/-    1.02  0.070 / 0.180
G26     286.3          19.3               15.5 +/-    0.84      34.7 +/-    0.84  0.060 / 0.310
G29     153.8          65.1               13.5 +/-    0.88      14.7 +/-    0.88  0.040 / 0.040