PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/15-12:12:30
G02     292.8          82.0                6.0 +/-    0.79       6.0 +/-    0.79  0.080 / 0.110
G05     169.4          23.6                7.2 +/-    3.84      14.6 +/-    3.84  0.080 / 0.110
G06     39.1           52.9                5.0 +/-    0.50       6.1 +/-    0.50  0.190 / 0.130
G12     319.6          60.2                5.5 +/-    1.05       6.2 +/-    1.05  0.080 / 0.110
G17     79.8           15.3                4.2 +/-    2.61      10.4 +/-    2.61  0.090 / 0.230
G19     67.7           31.5                4.2 +/-    1.75       7.1 +/-    1.75  0.220 / 0.160
G24     237.6          29.4                8.0 +/-    1.35      14.1 +/-    1.35  0.050 / 0.030
G25     317.8          21.5                4.7 +/-    2.28       9.9 +/-    2.28  0.030 / 0.030