PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/09-12:42:30
G02     310.2          81.8                2.2 +/-    0.78       2.2 +/-    0.78  0.100 / 0.120
G05     168.7          25.8                4.1 +/-    1.27       7.9 +/-    1.27  0.130 / 0.110
G06     39.5           50.2                2.5 +/-    0.45       3.2 +/-    0.45  0.110 / 0.150
G12     318.4          62.9                2.1 +/-    0.58       2.3 +/-    0.58  0.080 / 0.120
G17     81.8           13.7                3.0 +/-    2.34       7.7 +/-    2.34  0.080 / 0.170
G19     70.0           30.0                1.6 +/-    2.62       2.8 +/-    2.62  0.110 / 0.210
G24     235.5          27.8                4.2 +/-    0.92       7.7 +/-    0.92  0.020 / 0.040
G25     317.8          23.9                3.0 +/-    1.69       6.0 +/-    1.69  0.030 / 0.030