PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/12-14:58:00
G02     58.8           32.8                6.7 +/-    1.42      11.1 +/-    1.42  0.030 / 0.020
G05     63.0           64.3                8.0 +/-    0.43       8.8 +/-    0.43  0.020 / 0.030
G12     186.6          35.6               13.2 +/-    1.27      20.8 +/-    1.27  0.130 / 0.220
G13     131.0          13.8               13.2 +/-    2.25      33.9 +/-    2.25  0.150 / 0.330
G15     164.0          11.0                3.2 +/-   26.41       8.7 +/-   26.41  0.060 / 0.070
G20     207.5          56.6               11.6 +/-    0.91      13.6 +/-    0.91  0.070 / 0.080
G21     270.9          19.3                7.7 +/-    0.89      17.2 +/-    0.89  0.040 / 0.040
G25     237.9          52.9               10.6 +/-    4.92      13.0 +/-    4.92  0.040 / 0.050
G29     332.2          58.3                7.2 +/-    0.47       8.3 +/-    0.47  0.200 / 0.320