PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/14-21:12:50
G05     51.6           13.8               13.5 +/-    2.53      34.5 +/-    2.53  0.040 / 0.050
G10     242.4          18.2               26.7 +/-    3.46      61.5 +/-    3.46  0.040 / 0.050
G13     66.2           36.0               17.7 +/-    1.43      27.5 +/-    1.43  0.130 / 0.140
G15     109.0          56.6               21.6 +/-    0.30      25.3 +/-    0.30  0.080 / 0.160
G16     309.0          13.0               16.3 +/-    5.02      42.5 +/-    5.02  0.110 / 0.200
G18     255.1          48.9               23.1 +/-    3.94      29.5 +/-    3.94  0.090 / 0.180
G20     35.6           57.5               19.0 +/-    0.68      22.1 +/-    0.68  0.350 / 0.290
G21     322.9          54.0               20.8 +/-    0.74      25.1 +/-    0.74  0.150 / 0.290
G26     281.7          18.3               21.0 +/-    0.78      48.3 +/-    0.78  0.030 / 0.030
G29     159.1          57.7               24.1 +/-    0.74      28.0 +/-    0.74  0.030 / 0.030