PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/07-05:12:40
G01     307.5          32.8                5.3 +/-    1.81       8.8 +/-    1.81  0.030 / 0.050
G10     104.8          41.7                5.7 +/-    0.99       8.1 +/-    0.99  0.050 / 0.040
G11     280.2          29.8                6.6 +/-    0.82      11.7 +/-    0.82  0.090 / 0.140
G14     359.6          66.6                3.6 +/-    1.20       3.9 +/-    1.20  0.120 / 0.150
G18     116.3          16.4                5.8 +/-    2.37      13.9 +/-    2.37  0.080 / 0.100
G22     309.3          25.8                4.3 +/-    1.71       8.3 +/-    1.71  0.100 / 0.070
G25     78.0           15.6                5.5 +/-    2.03      13.5 +/-    2.03  0.050 / 0.040
G31     168.1          63.9                6.6 +/-    0.85       7.3 +/-    0.85  0.050 / 0.040
G32     33.8           54.0                4.7 +/-    1.39       5.7 +/-    1.39  0.030 / 0.040