PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/09-05:42:30
G01     225.4          16.3                2.5 +/-    2.18       6.0 +/-    2.18  0.040 / 0.050
G03     288.5          66.1               -0.8 +/-    1.39      -0.8 +/-    1.39  0.030 / 0.040
G09     295.4          10.5              -14.6 +/-   18.44     -40.2 +/-   18.44  0.110 / 0.210
G14     88.4           22.1               -0.1 +/-    1.77      -0.2 +/-    1.77  0.110 / 0.180
G16     149.5          45.0                2.5 +/-    1.03       3.4 +/-    1.03  0.110 / 0.370
G22     214.9          70.3                1.5 +/-    0.67       1.6 +/-    0.67  0.160 / 0.360
G23     307.1          36.5                0.4 +/-    1.11       0.7 +/-    1.11  0.100 / 0.320
G26     100.9          55.2                0.7 +/-    0.52       0.8 +/-    0.52  0.110 / 0.300
G31     44.8           33.3               -1.1 +/-    0.58      -1.8 +/-    0.58  0.040 / 0.090