PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/05-06:27:50
G02     269.3          81.5                5.0 +/-    0.65       5.0 +/-    0.65  0.120 / 0.210
G05     169.1          21.3                6.0 +/-    2.96      12.8 +/-    2.96  0.120 / 0.200
G06     39.3           56.4                5.5 +/-    0.54       6.5 +/-    0.54  0.040 / 0.040
G12     320.8          55.6                3.7 +/-    0.62       4.3 +/-    0.62  0.040 / 0.030
G17     75.0           20.1                4.0 +/-    2.35       8.7 +/-    2.35  0.130 / 0.130
G19     62.8           35.0                3.9 +/-    1.00       6.2 +/-    1.00  0.080 / 0.110
G24     241.1          31.9                5.8 +/-    0.66       9.8 +/-    0.66  0.090 / 0.130
G25     317.5          16.2                2.1 +/-    1.98       5.2 +/-    1.98  0.080 / 0.130