PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/16-20:57:50
G03     190.8          24.0               10.4 +/-    1.45      20.8 +/-    1.45  0.040 / 0.080
G07     285.1          34.2               10.5 +/-    1.66      16.9 +/-    1.66  0.040 / 0.100
G08     147.1          23.0               14.6 +/-    2.46      30.0 +/-    2.46  0.170 / 0.210
G09     320.4          56.5               10.0 +/-    1.35      11.7 +/-    1.35  0.150 / 0.200
G16     44.7           44.5                9.4 +/-    2.16      12.7 +/-    2.16  0.130 / 0.320
G22     177.8          10.1               11.7 +/-    1.70      32.6 +/-    1.70  0.130 / 0.390
G23     90.6           81.6               10.5 +/-    0.62      10.6 +/-    0.62  0.070 / 0.090
G26     43.0           15.5                9.7 +/-    2.74      23.9 +/-    2.74  0.060 / 0.100
G27     104.4          31.5               14.3 +/-    1.05      24.4 +/-    1.05  0.030 / 0.030
G30     271.3          13.1               11.9 +/-    2.43      31.1 +/-    2.43  0.030 / 0.020