PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/24-20:27:40
G02     58.0           34.8               10.4 +/-    0.79      16.5 +/-    0.79  0.100 / 0.360
G05     65.0           66.8               12.8 +/-    0.59      13.8 +/-    0.59  0.120 / 0.360
G12     185.1          32.9               13.8 +/-    0.71      22.9 +/-    0.71  0.090 / 0.110
G13     130.5          14.6               15.5 +/-    2.51      39.0 +/-    2.51  0.040 / 0.110
G15     165.1          10.8                3.9 +/-   34.94      10.8 +/-   34.94  0.040 / 0.080
G20     206.6          60.3               13.7 +/-    1.01      15.5 +/-    1.01  0.040 / 0.080
G21     270.6          17.3                9.5 +/-    1.63      22.4 +/-    1.63  0.040 / 0.040
G25     230.8          51.4               12.7 +/-    1.39      15.7 +/-    1.39  0.040 / 0.030
G29     330.0          56.6               11.8 +/-    0.84      13.8 +/-    0.84  0.020 / 0.050