PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/19-03:13:00
G08     320.4607       11.1904         -1.9939 +/- 28.3779   -5.4210 +/- 28.3779  0.040 / 0.050
G10     301.4460       52.6746          6.7150 +/-  0.6200    8.2058 +/-  0.6200  0.040 / 0.040
G14     211.0172       16.7711          7.8429 +/-  5.2923   18.6812 +/-  5.2923  0.030 / 0.040
G15     46.0073        28.1712          4.3927 +/-  3.5972    7.9971 +/-  3.5972  0.030 / 0.040
G18     1.3269         65.7052        -19.1499 +/- 54.1219  -20.7968 +/- 54.1219  0.050 / 0.080
G20     74.4631        14.3195          5.3158 +/-  1.2775   13.4414 +/-  1.2775  0.060 / 0.090
G21     105.8156       72.0771          8.9895 +/-  0.5095    9.3982 +/-  0.5095  0.090 / 0.080
G24     95.1881        27.7723          7.9515 +/-  1.0910   14.6021 +/-  1.0910  0.090 / 0.120
G27     294.6700       36.3844          8.4084 +/-  0.7926   13.0112 +/-  0.7926  0.070 / 0.130
G32     212.5068       35.0719         11.1810 +/-  1.2521   17.7205 +/-  1.2521  0.070 / 0.140