PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/10-21:13:00
G02     53.1           39.1               11.4 +/-    0.96      16.8 +/-    0.96  0.060 / 0.070
G05     76.9           69.4               12.4 +/-    0.83      13.2 +/-    0.83  0.080 / 0.070
G12     185.8          38.4               14.6 +/-    0.80      21.8 +/-    0.80  0.060 / 0.050
G13     134.4          11.0               15.1 +/-   14.22      41.2 +/-   14.22  0.080 / 0.070
G20     203.9          54.6               11.3 +/-   22.21      13.5 +/-   22.21  0.190 / 0.360
G21     266.1          13.7               14.7 +/-    2.97      37.8 +/-    2.97  0.110 / 0.420
G25     237.8          55.2               13.9 +/-    4.37      16.5 +/-    4.37  0.040 / 0.070
G29     325.8          51.0               12.2 +/-    0.70      15.1 +/-    0.70  0.040 / 0.070