PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/09-18:28:00
G02     32.5           55.3               10.1 +/-    0.93      12.0 +/-    0.93  0.050 / 0.050
G05     136.6          63.7               11.9 +/-    0.92      13.1 +/-    0.92  0.050 / 0.060
G06     54.7           13.5                6.3 +/-    1.68      16.1 +/-    1.68  0.030 / 0.050
G12     197.2          66.5                8.0 +/-    1.05       8.7 +/-    1.05  0.030 / 0.050
G25     294.8          53.9               10.0 +/-    0.92      12.0 +/-    0.92  0.030 / 0.040
G29     308.6          29.6                9.6 +/-    1.88      16.9 +/-    1.88  0.030 / 0.040