PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/14-17:27:50
G02     20.4           65.3               14.9 +/-    0.71      16.3 +/-    0.71  0.200 / 0.240
G05     159.5          49.1               19.4 +/-    0.72      24.7 +/-    0.72  0.190 / 0.290
G06     48.3           25.2               14.3 +/-    2.27      27.9 +/-    2.27  0.050 / 0.060
G12     229.0          77.8               14.1 +/-    0.35      14.4 +/-    0.35  0.050 / 0.060
G19     92.3           14.7               16.0 +/-    2.17      40.0 +/-    2.17  0.030 / 0.020
G20     197.5          16.3               21.2 +/-    2.22      51.2 +/-    2.22  0.020 / 0.020
G24     216.8          10.7               16.6 +/-    5.70      45.7 +/-    5.70  0.040 / 0.040
G25     307.4          48.5               14.5 +/-    1.17      18.6 +/-    1.17  0.040 / 0.050
G29     301.3          23.4               12.5 +/-    1.03      25.3 +/-    1.03  0.160 / 0.160