PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/19-06:27:50
G01     308.4322       32.0985          1.5336 +/-  1.5173    2.5733 +/-  1.5173  0.040 / 0.040
G10     103.4221       42.6024          3.4883 +/-  0.4689    4.8695 +/-  0.4689  0.040 / 0.020
G11     281.2978       29.9109          4.7658 +/-  1.3520    8.3614 +/-  1.3520  0.090 / 0.150
G14     356.8211       67.1973          2.9406 +/-  0.8811    3.1617 +/-  0.8811  0.060 / 0.140
G18     115.2770       17.8075          4.5232 +/-  1.1041   10.5027 +/-  1.1041  0.080 / 0.200
G22     309.0369       25.5483          1.4599 +/-  2.4281    2.8170 +/-  2.4281  0.080 / 0.190
G25     79.8933        15.4020          3.2582 +/-  1.0721    8.0254 +/-  1.0721  0.030 / 0.050
G31     167.9070       63.0423          6.5222 +/-  0.8211    7.2231 +/-  0.8211  0.040 / 0.050
G32     33.1775        54.3479          2.4794 +/-  0.4052    2.9746 +/-  0.4052  0.070 / 0.030