PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/03-21:43:00
G10     291.9          49.4               16.3 +/-    1.11      20.7 +/-    1.11  0.070 / 0.120
G14     209.3          10.2               -3.1 +/-   37.78      -8.7 +/-   37.78  0.070 / 0.140
G15     46.7           31.1               16.2 +/-    0.54      27.7 +/-    0.54  0.050 / 0.040
G18     351.4          66.6               16.1 +/-    0.60      17.4 +/-    0.60  0.050 / 0.050
G20     69.1           20.2               17.3 +/-    2.51      37.9 +/-    2.51  0.050 / 0.180
G21     89.6           74.2               18.0 +/-    1.24      18.7 +/-    1.24  0.070 / 0.150
G24     102.5          25.1               19.1 +/-    1.14      37.2 +/-    1.14  0.060 / 0.100
G27     302.3          33.7               16.5 +/-    1.18      26.8 +/-    1.18  0.070 / 0.080
G32     210.3          25.6               19.0 +/-    1.19      36.5 +/-    1.19  0.190 / 0.640