PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/14-02:27:40
G02     58.2           33.4                7.1 +/-    0.61      11.6 +/-    0.61  0.060 / 0.080
G05     60.4           61.6                7.7 +/-    0.66       8.6 +/-    0.66  0.090 / 0.080
G12     185.0          34.8               11.2 +/-    2.11      17.8 +/-    2.11  0.030 / 0.050
G13     130.2          13.6                9.7 +/-    3.32      25.0 +/-    3.32  0.030 / 0.040
G15     165.0          10.4               -5.0 +/-   23.80     -13.9 +/-   23.80  0.060 / 0.060
G20     217.3          14.7               13.4 +/-    5.60      33.5 +/-    5.60  0.050 / 0.060
G21     269.3          15.5                9.2 +/-    1.54      22.6 +/-    1.54  0.050 / 0.090
G25     241.7          53.5               10.5 +/-    0.83      12.7 +/-    0.83  0.050 / 0.090
G29     326.3          51.6                8.3 +/-    0.97      10.3 +/-    0.97  0.100 / 0.380