PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/20-23:57:50
G10     301.3          53.1               11.0 +/-    0.96      13.3 +/-    0.96  0.070 / 0.090
G14     211.0          13.1               14.4 +/-    2.29      37.5 +/-    2.29  0.090 / 0.090
G15     46.2           29.3                8.8 +/-    0.65      15.6 +/-    0.65  0.040 / 0.050
G20     295.5          46.6                9.1 +/-    0.93      12.0 +/-    0.93  0.050 / 0.050
G21     102.0          73.6               11.9 +/-    0.63      12.3 +/-    0.63  0.080 / 0.510
G24     92.9           27.1               12.8 +/-    1.53      23.8 +/-    1.53  0.100 / 0.540
G27     298.0          35.1               12.0 +/-    0.86      19.1 +/-    0.86  0.100 / 0.150
G32     211.3          36.3               15.0 +/-    0.96      23.2 +/-    0.96  0.090 / 0.140