PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/25-21:27:40
G03     205.5          51.9               10.2 +/-    1.19      12.6 +/-    1.19  0.050 / 0.080
G07     261.2          18.4               10.2 +/-    1.06      23.3 +/-    1.06  0.060 / 0.100
G09     312.6          31.6                8.7 +/-    0.99      14.8 +/-    0.99  0.030 / 0.050
G16     84.7           65.1               11.9 +/-    0.42      13.0 +/-    0.42  0.030 / 0.040
G22     186.3          36.1               11.7 +/-    1.76      18.3 +/-    1.76  0.080 / 0.250
G23     336.2          64.9               10.0 +/-    0.87      10.9 +/-    0.87  0.070 / 0.250
G26     49.7           39.4                8.7 +/-    0.79      12.7 +/-    0.79  0.030 / 0.050
G27     129.2          14.6               12.6 +/-    2.12      31.7 +/-    2.12  0.030 / 0.050