PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/11-20:27:40
G02     59.3           33.8                7.4 +/-    0.63      12.0 +/-    0.63  0.020 / 0.040
G05     56.8           60.5                8.1 +/-    0.52       9.2 +/-    0.52  0.030 / 0.040
G12     181.5          28.1               12.9 +/-    1.71      23.5 +/-    1.71  0.100 / 0.390
G13     126.9          16.0               14.6 +/-    2.45      35.5 +/-    2.45  0.130 / 0.330
G15     165.6          11.7               17.8 +/-   18.31      48.0 +/-   18.31  0.050 / 0.140
G21     271.9          17.1               12.8 +/-    2.51      30.2 +/-    2.51  0.050 / 0.120
G25     233.7          50.9               10.2 +/-    0.77      12.7 +/-    0.77  0.050 / 0.080
G29     328.1          54.4                7.8 +/-    0.64       9.3 +/-    0.64  0.040 / 0.060