PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/16-18:28:00
G02     43.8           46.0                7.0 +/-    0.71       9.3 +/-    0.71  0.040 / 0.070
G05     102.3          69.8                9.4 +/-    0.79      10.0 +/-    0.79  0.030 / 0.060
G12     188.7          52.0                9.0 +/-    1.70      11.1 +/-    1.70  0.040 / 0.050
G25     270.7          58.1                9.0 +/-    0.49      10.4 +/-    0.49  0.040 / 0.060
G29     317.4          39.4                9.0 +/-    1.61      13.2 +/-    1.61  0.060 / 0.060