PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/11-17:42:50
G01     261.2          38.9               10.5 +/-    0.96      15.5 +/-    0.96  0.040 / 0.090
G03     316.7          38.8                7.8 +/-    1.19      11.5 +/-    1.19  0.040 / 0.090
G10     133.7          11.4               10.2 +/-    1.57      27.6 +/-    1.57  0.040 / 0.050
G11     246.6          17.0               10.9 +/-    2.58      25.7 +/-    2.58  0.040 / 0.050
G14     50.4           46.8                6.5 +/-    0.32       8.6 +/-    0.32  0.020 / 0.040
G22     311.5          59.8                9.9 +/-    0.82      11.3 +/-    0.82  0.030 / 0.040
G25     46.5           14.6                6.0 +/-    1.09      15.1 +/-    1.09  0.070 / 0.090
G26     142.6          31.3               12.1 +/-    1.36      20.6 +/-    1.36  0.070 / 0.090
G31     44.8           66.4                8.2 +/-    0.39       8.8 +/-    0.39  0.050 / 0.070
G32     70.8           27.4                7.4 +/-    0.78      13.6 +/-    0.78  0.060 / 0.080