PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/08-15:42:10
G02     41.1           48.8                9.0 +/-    0.96      11.5 +/-    0.96  0.050 / 0.040
G05     122.0          69.7               11.2 +/-    0.77      11.9 +/-    0.77  0.060 / 0.040
G12     187.4          52.9               12.4 +/-    0.93      15.1 +/-    0.93  0.050 / 0.050
G25     269.5          59.8               11.8 +/-    1.00      13.4 +/-    1.00  0.050 / 0.040
G29     315.3          36.8               10.0 +/-    1.18      15.3 +/-    1.18  0.070 / 0.040