PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/11-19:57:40
G10     284.4          47.1               11.7 +/-    2.85      15.4 +/-    2.85  0.080 / 0.090
G15     50.0           40.5                9.2 +/-    0.64      13.3 +/-    0.64  0.100 / 0.100
G20     329.2          64.8               11.2 +/-    0.69      12.3 +/-    0.69  0.040 / 0.030
G21     59.3           76.9               12.2 +/-    0.37      12.5 +/-    0.37  0.030 / 0.030
G24     104.1          22.3               12.1 +/-    0.90      25.3 +/-    0.90  0.050 / 0.060
G27     310.5          28.1                9.3 +/-    1.32      16.9 +/-    1.32  0.070 / 0.060
G29     168.5          16.6               14.1 +/-    2.93      33.7 +/-    2.93  0.080 / 0.160
G32     207.0          23.3               14.2 +/-    1.59      28.8 +/-    1.59  0.080 / 0.140