PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/13-22:42:40
G08     286.7          23.3               14.5 +/-    1.79      29.6 +/-    1.79  0.080 / 0.100
G10     16.9           63.2               14.7 +/-    0.77      16.3 +/-    0.77  0.090 / 0.120
G14     235.5          52.3               17.7 +/-    2.51      21.8 +/-    2.51  0.100 / 0.110
G18     70.2           48.1               14.8 +/-    0.40      19.1 +/-    0.40  0.100 / 0.110
G21     148.0          32.8               19.7 +/-    1.27      32.5 +/-    1.27  0.030 / 0.080
G24     52.7           24.3               13.6 +/-    0.41      27.1 +/-    0.41  0.030 / 0.030
G27     247.4          28.5               16.1 +/-    1.94      29.1 +/-    1.94  0.050 / 0.140
G32     254.3          68.5               16.6 +/-    0.66      17.7 +/-    0.66  0.050 / 0.130