PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/11-20:27:20
G02     231.4          71.7               12.3 +/-    1.04      12.9 +/-    1.04  0.070 / 0.100
G05     172.9          12.6               16.8 +/-    2.28      44.2 +/-    2.28  0.080 / 0.120
G06     42.2           64.0               11.5 +/-    0.35      12.7 +/-    0.35  0.040 / 0.050
G12     320.4          44.9               10.2 +/-    1.52      13.7 +/-    1.52  0.040 / 0.050
G17     66.1           25.9               10.9 +/-    1.00      20.8 +/-    1.00  0.060 / 0.090
G19     52.7           40.6               11.8 +/-    0.89      17.1 +/-    0.89  0.040 / 0.070
G24     250.1          37.1               14.6 +/-    1.03      22.3 +/-    1.03  0.060 / 0.110