PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/11-22:12:50
G10     260.4          33.3               17.1 +/-    1.00      28.1 +/-    1.00  0.130 / 0.500
G13     46.2           24.6               13.8 +/-    1.87      27.2 +/-    1.87  0.110 / 0.440
G15     67.8           53.4               16.4 +/-    0.42      19.9 +/-    0.42  0.040 / 0.040
G16     288.2          12.9               15.6 +/-    1.96      40.8 +/-    1.96  0.050 / 0.040
G18     287.6          61.8               15.2 +/-    0.81      17.0 +/-    0.81  0.150 / 0.360
G20     50.5           39.1               13.6 +/-    0.87      20.1 +/-    0.87  0.160 / 0.450
G21     352.0          68.5               14.8 +/-    1.11      15.8 +/-    1.11  0.060 / 0.200
G26     261.2          10.8               16.7 +/-    2.12      45.8 +/-    2.12  0.060 / 0.210
G27     320.3          15.3               12.6 +/-    2.48      31.1 +/-    2.48  0.140 / 0.420
G29     165.6          34.1               17.9 +/-    1.14      28.8 +/-    1.14  0.150 / 0.410