PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/12-10:57:50
G02     232.3          71.0                3.7 +/-    0.66       3.9 +/-    0.66  0.110 / 0.220
G05     175.4          11.0               -2.3 +/-   18.38      -6.2 +/-   18.38  0.100 / 0.230
G06     41.8           62.6                3.1 +/-    0.46       3.4 +/-    0.46  0.060 / 0.100
G12     321.4          48.7                3.5 +/-    0.78       4.5 +/-    0.78  0.060 / 0.100
G17     69.0           22.4                2.7 +/-    0.83       5.7 +/-    0.83  0.030 / 0.050
G19     50.4           43.5                3.0 +/-    0.33       4.2 +/-    0.33  0.030 / 0.050
G24     244.4          36.6                5.1 +/-    1.84       7.9 +/-    1.84  0.030 / 0.030
G25     315.9          13.3                3.0 +/-    1.43       7.8 +/-    1.43  0.030 / 0.030