PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/11-04:57:50
G02     38.8           50.1                1.6 +/-    1.42       2.0 +/-    1.42  0.030 / 0.030
G05     125.3          66.3                3.2 +/-    0.65       3.4 +/-    0.65  0.030 / 0.030
G06     55.0           16.2                0.9 +/-    1.96       2.1 +/-    1.96  0.030 / 0.040
G12     197.6          63.9                3.3 +/-    0.55       3.6 +/-    0.55  0.030 / 0.050
G25     284.6          58.0                3.7 +/-    1.50       4.3 +/-    1.50  0.030 / 0.030
G29     314.0          36.9                2.2 +/-    1.29       3.4 +/-    1.29  0.030 / 0.030