PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/17-23:13:00
G10     267.9          38.9               15.5 +/-    1.75      23.0 +/-    1.75  0.180 / 0.280
G13     41.5           17.5                8.6 +/-    1.07      20.0 +/-    1.07  0.190 / 0.280
G15     60.9           51.3               10.1 +/-    0.36      12.5 +/-    0.36  0.040 / 0.050
G16     276.5          12.1               14.2 +/-    2.88      37.7 +/-    2.88  0.050 / 0.050
G20     269.7          32.2               16.6 +/-    0.97      27.9 +/-    0.97  0.230 / 0.480
G21     1.5            71.9               10.3 +/-    0.82      10.8 +/-    0.82  0.230 / 0.680
G24     118.1          14.8               13.5 +/-    1.42      33.7 +/-    1.42  0.140 / 0.210
G27     318.4          19.2               11.5 +/-    1.78      25.8 +/-    1.78  0.160 / 0.210
G29     168.5          31.5               13.4 +/-    1.09      22.7 +/-    1.09  0.100 / 0.260
G32     204.0          11.4                7.0 +/-   42.86      19.0 +/-   42.86  0.130 / 0.280