PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/12-18:27:50
G05     53.1           10.6                9.7 +/-    1.94      26.7 +/-    1.94  0.040 / 0.040
G10     244.9          22.1               12.6 +/-    1.38      26.4 +/-    1.38  0.030 / 0.040
G13     60.3           33.0               10.9 +/-    1.15      18.0 +/-    1.15  0.170 / 0.330
G15     108.6          58.6               13.4 +/-    0.40      15.4 +/-    0.40  0.110 / 0.360
G16     302.3          15.4                6.7 +/-    2.79      16.4 +/-    2.79  0.050 / 0.110
G20     261.1          46.2               12.3 +/-    3.53      16.3 +/-    3.53  0.070 / 0.110
G21     326.8          55.9               11.8 +/-    0.69      13.9 +/-    0.69  0.030 / 0.030
G26     275.0          17.9                9.8 +/-    1.86      22.8 +/-    1.86  0.030 / 0.030
G29     162.2          58.0               13.3 +/-    0.66      15.4 +/-    0.66  0.180 / 0.220