PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/28-17:58:10
G05     49.5           16.6                9.7 +/-    1.42      23.3 +/-    1.42  0.080 / 0.190
G10     238.1          13.7               11.7 +/-    3.79      30.0 +/-    3.79  0.070 / 0.210
G13     73.7           37.1               11.1 +/-    0.55      16.9 +/-    0.55  0.040 / 0.080
G15     118.2          53.8               14.1 +/-    0.77      17.0 +/-    0.77  0.040 / 0.070
G18     248.8          45.3               11.9 +/-    1.26      15.9 +/-    1.26  0.050 / 0.060
G20     29.0           64.6               12.3 +/-    0.62      13.4 +/-    0.62  0.040 / 0.050
G21     318.3          51.3               12.3 +/-    0.97      15.3 +/-    0.97  0.100 / 0.210
G26     289.3          18.7               10.8 +/-    2.59      24.4 +/-    2.59  0.100 / 0.230
G29     154.2          62.4               15.1 +/-    1.38      16.8 +/-    1.38  0.260 / 0.370