PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/22-04:13:10
G02     39.2           49.7              -20.6 +/-    1.40     -26.0 +/-    1.40  0.030 / 0.040
G05     123.7          66.6                4.8 +/-    0.66       5.1 +/-    0.66  0.030 / 0.040
G06     55.5           15.3                1.5 +/-    1.35       3.8 +/-    1.35  0.030 / 0.050
G12     197.3          63.4                3.1 +/-    0.64       3.4 +/-    0.64  0.040 / 0.050
G25     284.3          57.9                4.8 +/-    2.06       5.6 +/-    2.06  0.030 / 0.030
G29     314.7          37.8                1.8 +/-    1.14       2.8 +/-    1.14  0.020 / 0.030