PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/22-17:27:50
G03     206.0          55.4               10.5 +/-    1.47      12.4 +/-    1.47  0.030 / 0.070
G07     257.2          15.0               10.4 +/-    2.60      25.8 +/-    2.60  0.030 / 0.060
G09     310.3          27.5                7.4 +/-    1.11      13.6 +/-    1.11  0.050 / 0.160
G16     93.4           64.5               12.4 +/-    0.67      13.6 +/-    0.67  0.070 / 0.210
G22     185.6          39.1               11.3 +/-    1.05      16.7 +/-    1.05  0.050 / 0.100
G23     334.3          62.7               11.0 +/-    0.80      12.2 +/-    0.80  0.080 / 0.110
G26     52.5           41.9               11.1 +/-    0.76      15.7 +/-    0.76  0.060 / 0.050
G27     133.2          11.2               -2.0 +/-   39.51      -5.4 +/-   39.51  0.050 / 0.050