PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/18-15:57:40
G10     271.0          42.0                8.3 +/-    1.53      11.8 +/-    1.53  0.100 / 0.200
G13     40.1           14.7                6.7 +/-    3.14      16.8 +/-    3.14  0.110 / 0.180
G15     54.4           43.9                6.7 +/-    0.34       9.2 +/-    0.34  0.190 / 0.610
G16     275.4          11.7                9.1 +/-    2.59      24.3 +/-    2.59  0.190 / 0.830
G20     309.2          63.1                7.3 +/-    0.61       8.1 +/-    0.61  0.040 / 0.040
G21     12.5           73.4                8.3 +/-    0.67       8.6 +/-    0.67  0.050 / 0.040
G24     119.8          15.8               11.1 +/-    0.85      26.9 +/-    0.85  0.070 / 0.110
G27     317.4          21.2                5.7 +/-    3.94      12.1 +/-    3.94  0.060 / 0.080
G29     167.8          29.2                8.6 +/-    1.10      15.3 +/-    1.10  0.040 / 0.090
G32     203.9          13.0               10.5 +/-    0.93      27.5 +/-    0.93  0.040 / 0.110