PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/13-04:42:50
G01     309.5          31.2                4.8 +/-    1.98       8.2 +/-    1.98  0.030 / 0.030
G10     102.0          43.4                6.2 +/-    0.61       8.6 +/-    0.61  0.050 / 0.020
G11     283.2          29.6                7.0 +/-    1.53      12.3 +/-    1.53  0.120 / 0.120
G14     353.9          67.8                4.7 +/-    0.54       5.0 +/-    0.54  0.130 / 0.110
G18     114.6          18.0                6.0 +/-    2.06      13.8 +/-    2.06  0.070 / 0.130
G22     308.3          23.6                6.2 +/-    0.66      12.5 +/-    0.66  0.110 / 0.100
G25     80.8           15.0                6.4 +/-    1.16      15.8 +/-    1.16  0.040 / 0.050
G31     170.3          60.9                9.6 +/-    0.61      10.8 +/-    0.61  0.050 / 0.040
G32     30.6           55.9                4.5 +/-    0.86       5.3 +/-    0.86  0.030 / 0.050