PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/29-03:43:00
G02     38.3           50.5                2.6 +/-    1.55       3.3 +/-    1.55  0.040 / 0.050
G05     126.1          66.0                4.3 +/-    0.40       4.7 +/-    0.40  0.040 / 0.040
G06     55.0           15.7                3.2 +/-    1.47       7.8 +/-    1.47  0.040 / 0.040
G12     198.4          64.6                4.2 +/-    0.70       4.6 +/-    0.70  0.030 / 0.040
G25     286.7          57.3               -0.5 +/-    1.29      -0.6 +/-    1.29  0.030 / 0.030
G29     313.7          36.6                3.3 +/-    0.93       5.1 +/-    0.93  0.030 / 0.030