PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/22-19:43:10
G03     200.1          46.1               13.4 +/-    1.32      17.8 +/-    1.32  0.030 / 0.050
G07     265.0          21.1               13.2 +/-    1.14      28.2 +/-    1.14  0.030 / 0.040
G09     314.6          35.5               11.7 +/-    1.40      18.3 +/-    1.40  0.090 / 0.220
G16     70.9           62.5               14.0 +/-    0.71      15.6 +/-    0.71  0.080 / 0.240
G22     184.0          30.4               15.8 +/-    1.25      27.5 +/-    1.25  0.080 / 0.140
G23     344.2          70.1               12.3 +/-    0.74      13.0 +/-    0.74  0.060 / 0.140
G26     46.8           34.6                9.5 +/-    0.36      15.3 +/-    0.36  0.030 / 0.050
G27     125.6          17.8               15.2 +/-    2.60      35.4 +/-    2.60  0.050 / 0.050