PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/16-20:43:10
G05     48.1           21.2               13.3 +/-    0.58      28.5 +/-    0.58  0.050 / 0.080
G10     236.1          11.3                3.5 +/-   51.47       9.6 +/-   51.47  0.070 / 0.080
G13     78.1           37.5               15.7 +/-    0.85      23.9 +/-    0.85  0.140 / 0.200
G15     125.2          51.9               17.4 +/-    0.55      21.5 +/-    0.55  0.110 / 0.280
G16     317.2          10.3               -6.4 +/-   10.85     -17.7 +/-   10.85  0.130 / 0.500
G18     245.3          42.0               16.4 +/-    1.23      23.2 +/-    1.23  0.040 / 0.040
G20     28.0           66.4               15.5 +/-    0.63      16.7 +/-    0.63  0.040 / 0.050
G21     313.5          47.9               14.4 +/-    1.21      18.6 +/-    1.21  0.070 / 0.150
G26     291.3          19.3               13.5 +/-    1.46      30.1 +/-    1.46  0.070 / 0.180
G29     153.3          68.2               18.1 +/-    0.95      19.3 +/-    0.95  0.120 / 0.230