PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/29-15:58:00
G02     31.4           56.5                6.1 +/-    1.51       7.2 +/-    1.51  0.040 / 0.040
G05     143.2          62.8                8.0 +/-    0.40       8.8 +/-    0.40  0.040 / 0.050
G06     55.2           13.4                6.7 +/-    1.40      17.2 +/-    1.40  0.030 / 0.040
G12     191.6          63.7                7.5 +/-    0.63       8.2 +/-    0.63  0.030 / 0.040
G19     100.3          11.8                8.1 +/-    2.96      21.8 +/-    2.96  0.030 / 0.030
G25     290.2          56.9                7.6 +/-    1.07       8.9 +/-    1.07  0.020 / 0.030
G29     308.6          29.0                4.8 +/-    0.94       8.7 +/-    0.94  0.070 / 0.170