PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/09-21:57:50
G02     68.0           27.2               11.7 +/-    1.26      21.7 +/-    1.26  0.060 / 0.090
G05     48.7           54.5               11.5 +/-    0.50      13.7 +/-    0.50  0.060 / 0.110
G12     182.2          19.6               17.0 +/-    1.92      37.8 +/-    1.92  0.070 / 0.200
G13     119.9          23.2               15.9 +/-    1.45      32.5 +/-    1.45  0.100 / 0.240
G15     158.7          20.7               19.7 +/-    2.66      42.7 +/-    2.66  0.030 / 0.040
G18     221.8          10.3               -4.7 +/-   23.86     -13.1 +/-   23.86  0.030 / 0.040
G20     216.6          74.8               15.4 +/-    1.08      15.9 +/-    1.08  0.070 / 0.220
G21     280.7          24.7               14.4 +/-    1.69      28.4 +/-    1.69  0.090 / 0.230
G25     216.4          40.2               17.4 +/-    1.11      25.3 +/-    1.11  0.030 / 0.040
G29     339.1          68.7               13.8 +/-    0.90      14.7 +/-    0.90  0.030 / 0.050