PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/17-12:43:00
G02     36.1           52.7                5.1 +/-    0.64       6.2 +/-    0.64  0.030 / 0.030
G05     136.9          65.1                6.5 +/-    0.57       7.1 +/-    0.57  0.030 / 0.030
G06     56.1           12.8                1.3 +/-    1.93       3.5 +/-    1.93  0.100 / 0.150
G12     193.4          62.6                6.6 +/-    0.63       7.3 +/-    0.63  0.120 / 0.130
G29     310.9          32.0                4.3 +/-    1.71       7.3 +/-    1.71  0.030 / 0.030