PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/07-18:58:10
G02     41.9           47.6                8.0 +/-    0.47      10.4 +/-    0.47  0.050 / 0.060
G05     109.9          69.3                9.4 +/-    1.19      10.0 +/-    1.19  0.040 / 0.060
G12     190.1          55.2               10.0 +/-    1.15      11.9 +/-    1.15  0.060 / 0.070
G25     276.1          57.8                9.5 +/-    0.93      11.0 +/-    0.93  0.040 / 0.050
G29     315.7          37.5                8.8 +/-    1.43      13.4 +/-    1.43  0.040 / 0.040