PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/22-18:27:40
G05     50.2           15.2               11.6 +/-    1.04      28.6 +/-    1.04  0.100 / 0.260
G10     239.4          15.2               18.0 +/-    1.61      44.6 +/-    1.61  0.100 / 0.240
G13     71.2           36.8               12.7 +/-    0.83      19.5 +/-    0.83  0.040 / 0.050
G15     114.9          54.8               15.3 +/-    0.51      18.2 +/-    0.51  0.040 / 0.050
G16     314.4          11.0               11.6 +/-    3.90      31.7 +/-    3.90  0.040 / 0.060
G18     250.8          46.7               14.6 +/-    1.17      19.2 +/-    1.17  0.030 / 0.060
G20     31.0           62.6               13.1 +/-    0.76      14.6 +/-    0.76  0.100 / 0.220
G21     320.1          52.4               13.8 +/-    1.09      16.9 +/-    1.09  0.090 / 0.220
G26     287.6          18.5               13.3 +/-    1.16      30.3 +/-    1.16  0.200 / 0.570
G29     155.6          60.5               17.3 +/-    1.08      19.5 +/-    1.08  0.210 / 0.830