PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/14-17:57:20
G02     27.9           58.7                7.1 +/-    1.15       8.2 +/-    1.15  0.040 / 0.050
G05     144.2          60.0               10.1 +/-    0.61      11.5 +/-    0.61  0.050 / 0.060
G06     52.4           16.6                6.7 +/-    2.81      15.9 +/-    2.81  0.030 / 0.030
G12     202.8          71.0                7.7 +/-    0.52       8.1 +/-    0.52  0.020 / 0.030
G25     300.7          51.1                7.9 +/-    1.89       9.8 +/-    1.89  0.200 / 0.180
G29     305.6          26.4                9.2 +/-    1.94      17.3 +/-    1.94  0.100 / 0.300