PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/07-20:12:40
G10     283.5          46.8               20.8 +/-    2.14      27.3 +/-    2.14  0.040 / 0.030
G15     50.4           41.3               16.6 +/-    0.95      23.7 +/-    0.95  0.040 / 0.030
G20     327.7          64.7               18.9 +/-    0.59      20.7 +/-    0.59  0.080 / 0.170
G21     56.0           77.0               20.3 +/-    0.49      20.8 +/-    0.49  0.090 / 0.150
G24     104.9          22.0               22.3 +/-    1.49      46.8 +/-    1.49  0.040 / 0.050
G29     168.5          17.3               24.6 +/-    1.93      57.8 +/-    1.93  0.050 / 0.040
G32     206.8          22.8               27.4 +/-    1.44      56.5 +/-    1.44  0.120 / 0.180