PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/11-21:27:50
G01     278.8          41.3                8.6 +/-    1.15      12.2 +/-    1.15  0.040 / 0.070
G03     314.6          24.3                7.8 +/-    2.58      15.5 +/-    2.58  0.060 / 0.070
G10     126.2          22.2               11.5 +/-    1.42      24.0 +/-    1.42  0.050 / 0.080
G11     256.5          23.2                9.4 +/-    1.35      19.2 +/-    1.35  0.050 / 0.100
G14     36.7           53.3                7.5 +/-    0.37       9.1 +/-    0.37  0.030 / 0.030
G22     314.5          45.7                5.5 +/-    1.59       7.3 +/-    1.59  0.020 / 0.030
G25     57.5           18.0                7.1 +/-    0.80      16.4 +/-    0.80  0.050 / 0.120
G26     153.2          19.3               13.2 +/-    2.43      29.6 +/-    2.43  0.050 / 0.150
G31     82.5           80.3                8.5 +/-    0.63       8.7 +/-    0.63  0.030 / 0.060
G32     58.5           37.0                5.8 +/-    0.60       8.9 +/-    0.60  0.040 / 0.070