PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/06-22:13:00
G02     68.9           26.5                9.9 +/-    1.46      18.6 +/-    1.46  0.030 / 0.040
G05     47.9           53.1                9.6 +/-    0.62      11.7 +/-    0.62  0.020 / 0.030
G12     181.9          18.4               15.1 +/-    2.26      34.5 +/-    2.26  0.060 / 0.090
G13     118.8          24.0               13.5 +/-    1.99      27.0 +/-    1.99  0.060 / 0.110
G15     158.2          21.6               15.8 +/-    2.12      33.5 +/-    2.12  0.080 / 0.260
G18     222.2          11.3               14.5 +/-   34.35      39.4 +/-   34.35  0.110 / 0.250
G20     218.3          76.2               13.5 +/-    0.61      13.8 +/-    0.61  0.080 / 0.170
G21     281.7          25.4               14.1 +/-    1.56      27.4 +/-    1.56  0.080 / 0.210
G25     215.3          39.0               15.5 +/-    0.53      22.9 +/-    0.53  0.030 / 0.070
G29     340.1          69.8               13.5 +/-    0.65      14.3 +/-    0.65  0.030 / 0.080