PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/26-20:43:10
G02     253.6          78.0                1.3 +/-    9.79       1.3 +/-    9.79  0.100 / 0.120
G05     169.9          19.9               14.7 +/-    1.13      32.4 +/-    1.13  0.070 / 0.120
G06     40.3           53.0               11.1 +/-    1.02      13.5 +/-    1.02  0.050 / 0.240
G12     321.8          58.4                1.4 +/-    9.93       1.6 +/-    9.93  0.060 / 0.220
G17     73.7           21.0               10.5 +/-    1.18      22.6 +/-    1.18  0.050 / 0.060
G19     59.2           38.3                5.0 +/-   11.08       7.4 +/-   11.08  0.030 / 0.050
G24     240.3          32.4               14.5 +/-    1.11      24.2 +/-    1.11  0.160 / 0.360
G25     317.2          15.5                5.7 +/-   12.64      14.0 +/-   12.64  0.130 / 0.490