PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/15-13:57:50
G02     36.3           52.0                5.0 +/-    0.65       6.1 +/-    0.65  0.030 / 0.040
G05     139.9          64.3                7.8 +/-    0.63       8.6 +/-    0.63  0.030 / 0.090
G06     55.8           11.8                4.2 +/-    3.07      11.3 +/-    3.07  0.040 / 0.040
G12     190.4          62.4                6.3 +/-    1.12       7.0 +/-    1.12  0.030 / 0.030
G25     291.5          55.1               10.4 +/-    1.05      12.3 +/-    1.05  0.040 / 0.050
G29     309.4          30.1                6.3 +/-    1.21      11.0 +/-    1.21  0.040 / 0.050