PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/25-15:42:50
G08     287.0          22.2                7.7 +/-    0.78      16.1 +/-    0.78  0.090 / 0.090
G10     23.1           63.0                8.4 +/-    1.68       9.3 +/-    1.68  0.070 / 0.110
G14     237.6          52.2               10.0 +/-    2.35      12.3 +/-    2.35  0.060 / 0.100
G21     149.0          29.5                9.1 +/-    1.80      16.1 +/-    1.80  0.080 / 0.090
G24     50.4           22.5                6.0 +/-    2.82      12.5 +/-    2.82  0.190 / 0.360
G27     245.5          27.1                8.3 +/-    2.19      15.4 +/-    2.19  0.200 / 0.240
G31     182.2          13.0                9.7 +/-    3.52      25.3 +/-    3.52  0.160 / 0.160
G32     266.6          73.3                8.5 +/-    0.68       8.8 +/-    0.68  0.180 / 0.210