PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/31-18:12:40
G10     271.7          41.2                8.8 +/-    1.24      12.6 +/-    1.24  0.180 / 0.220
G13     40.1           14.8                8.7 +/-    1.53      21.7 +/-    1.53  0.100 / 0.180
G15     57.0           48.4                7.6 +/-    2.20       9.8 +/-    2.20  0.050 / 0.040
G16     275.5          10.7                7.7 +/-    5.53      21.1 +/-    5.53  0.050 / 0.050
G20     306.0          62.0                8.5 +/-    1.46       9.5 +/-    1.46  0.150 / 0.830
G21     19.5           74.5                8.6 +/-    0.82       8.9 +/-    0.82  0.110 / 0.530
G24     113.4          16.9               10.2 +/-    1.92      24.3 +/-    1.92  0.140 / 0.380
G27     317.5          20.6                6.3 +/-    3.91      13.7 +/-    3.91  0.130 / 0.320
G29     167.9          26.6               10.7 +/-    1.32      20.1 +/-    1.32  0.090 / 0.190
G32     204.8          13.1               12.5 +/-    0.98      32.5 +/-    0.98  0.090 / 0.180