PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/06-13:57:40
G01     43.4           19.0               11.5 +/-    0.73      26.0 +/-    0.73  0.170 / 0.270
G06     176.4          34.4               16.1 +/-    1.11      25.8 +/-    1.11  0.150 / 0.380
G13     243.5          24.8               11.5 +/-    1.69      22.6 +/-    1.69  0.070 / 0.080
G15     276.4          13.6                9.4 +/-    0.94      24.2 +/-    0.94  0.070 / 0.080
G17     0.3            72.0               12.6 +/-    0.73      13.2 +/-    0.73  0.130 / 0.160
G19     270.1          68.8               11.7 +/-    0.50      12.5 +/-    0.50  0.130 / 0.200
G24     318.3          14.4                7.0 +/-    1.77      17.7 +/-    1.77  0.070 / 0.150
G28     66.7           48.5               12.6 +/-    0.68      16.1 +/-    0.68  0.070 / 0.140
G30     153.6          33.2               15.2 +/-    0.83      25.0 +/-    0.83  0.070 / 0.100