PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/14-19:58:00
G02     323.5          80.1               12.5 +/-    0.96      12.7 +/-    0.96  0.060 / 0.110
G05     165.3          31.3               16.7 +/-    1.50      28.4 +/-    1.50  0.040 / 0.100
G06     41.5           40.7               11.4 +/-    0.65      16.3 +/-    0.65  0.030 / 0.030
G12     313.7          72.3               11.6 +/-    0.76      12.1 +/-    0.76  0.020 / 0.030
G17     84.2           12.9               12.2 +/-    1.12      32.0 +/-    1.12  0.070 / 0.180
G19     71.2           31.0               13.2 +/-    0.44      22.6 +/-    0.44  0.070 / 0.170
G24     229.0          24.0               13.5 +/-    2.31      26.9 +/-    2.31  0.090 / 0.270
G25     317.5          27.0                9.8 +/-    1.73      18.2 +/-    1.73  0.090 / 0.210