PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/13-00:27:20
G02     33.6           54.5               10.5 +/-    0.48      12.6 +/-    0.48  0.040 / 0.060
G05     136.1          62.6               13.0 +/-    0.90      14.5 +/-    0.90  0.040 / 0.050
G06     52.9           17.3                7.9 +/-    0.66      18.5 +/-    0.66  0.090 / 0.130
G12     204.5          69.7               11.9 +/-    1.36      12.6 +/-    1.36  0.090 / 0.150
G25     296.4          53.8               10.8 +/-    0.85      13.0 +/-    0.85  0.030 / 0.030
G29     308.9          30.9               10.1 +/-    0.86      17.3 +/-    0.86  0.020 / 0.040