PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/05-18:43:10
G02     32.5           55.2                9.3 +/-    0.63      11.0 +/-    0.63  0.040 / 0.060
G05     136.6          63.6               11.7 +/-    1.19      12.9 +/-    1.19  0.040 / 0.060
G06     54.6           13.7                6.3 +/-    1.01      16.1 +/-    1.01  0.030 / 0.050
G12     197.7          66.8                6.6 +/-    1.15       7.1 +/-    1.15  0.050 / 0.050
G25     295.0          53.8                8.5 +/-    0.89      10.3 +/-    0.89  0.030 / 0.040
G29     308.6          29.6                7.9 +/-    1.86      13.9 +/-    1.86  0.030 / 0.040