PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/13-20:12:50
G10     299.0          52.5               16.9 +/-    1.31      20.7 +/-    1.31  0.050 / 0.080
G14     210.4          12.3               13.1 +/-    3.51      34.6 +/-    3.51  0.060 / 0.100
G15     46.5           31.1               14.6 +/-    0.63      25.1 +/-    0.63  0.040 / 0.040
G20     354.7          65.3               14.2 +/-    1.57      15.4 +/-    1.57  0.050 / 0.040
G21     100.3          72.9               17.8 +/-    0.62      18.5 +/-    0.62  0.100 / 0.460
G24     93.1           26.4               17.4 +/-    1.26      32.9 +/-    1.26  0.100 / 0.560
G27     300.8          33.7               16.3 +/-    1.32      26.4 +/-    1.32  0.090 / 0.130
G32     210.8          33.5               17.0 +/-    1.83      27.8 +/-    1.83  0.090 / 0.180