PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/05-21:13:00
G01     301.4          36.5               11.2 +/-    2.73      17.3 +/-    2.73  0.080 / 0.110
G10     111.8          36.3               12.4 +/-    1.18      19.1 +/-    1.18  0.080 / 0.100
G11     275.6          28.1               11.2 +/-    1.43      20.5 +/-    1.43  0.080 / 0.110
G14     9.9            63.7               10.5 +/-    0.47      11.6 +/-    0.47  0.080 / 0.130
G22     311.4          29.9               10.3 +/-    0.97      18.2 +/-    0.97  0.020 / 0.020
G25     75.6           17.9               10.0 +/-    1.00      23.3 +/-    1.00  0.030 / 0.030
G31     165.4          69.9               14.7 +/-    0.35      15.5 +/-    0.35  0.030 / 0.040
G32     41.1           49.2                8.6 +/-    1.80      10.9 +/-    1.80  0.040 / 0.040