PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/08-02:13:00
G01     319.6          16.0                3.8 +/-    0.86       9.3 +/-    0.86  0.150 / 0.330
G08     258.0          14.4               16.6 +/-    1.63      41.9 +/-    1.63  0.140 / 0.290
G10     74.6           55.4               10.4 +/-    1.72      12.3 +/-    1.72  0.060 / 0.100
G11     304.0          23.4                7.5 +/-    1.57      15.1 +/-    1.57  0.040 / 0.070
G14     293.5          70.9               18.9 +/-    0.35      19.9 +/-    0.35  0.050 / 0.080
G18     99.2           31.4               14.5 +/-    1.69      24.7 +/-    1.69  0.050 / 0.070
G31     178.0          37.8               16.3 +/-    1.45      24.6 +/-    1.45  0.060 / 0.050
G32     355.1          70.3               11.9 +/-    1.20      12.6 +/-    1.20  0.050 / 0.060