PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/10-17:27:10
G02     35.7           53.2               12.0 +/-    0.67      14.6 +/-    0.67  0.030 / 0.040
G05     129.2          67.3               15.2 +/-    0.85      16.4 +/-    0.85  0.030 / 0.040
G12     187.3          56.6               14.9 +/-    1.88      17.4 +/-    1.88  0.080 / 0.060
G25     280.8          58.5               14.0 +/-    0.74      16.1 +/-    0.74  0.060 / 0.060
G29     312.1          32.9               10.1 +/-    1.18      16.8 +/-    1.18  0.040 / 0.060