PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/08-20:42:30
G02     35.5           52.9                9.0 +/-    1.14      10.9 +/-    1.14  0.040 / 0.060
G05     130.5          65.2               10.1 +/-    1.14      11.0 +/-    1.14  0.040 / 0.060
G06     55.5           12.8                7.7 +/-    2.19      20.2 +/-    2.19  0.050 / 0.050
G12     197.3          65.2                8.8 +/-    0.33       9.6 +/-    0.33  0.050 / 0.060
G25     291.7          55.1                9.1 +/-    1.96      10.9 +/-    1.96  0.100 / 0.160
G29     310.4          31.7                8.8 +/-    0.58      14.9 +/-    0.58  0.080 / 0.160