PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/06-19:58:10
G03     199.8          43.8               10.1 +/-    0.41      13.8 +/-    0.41  0.090 / 0.150
G07     269.6          26.9                9.4 +/-    1.90      17.7 +/-    1.90  0.120 / 0.140
G09     316.4          40.0                8.3 +/-    0.95      12.1 +/-    0.95  0.050 / 0.050
G16     68.8           62.5                9.5 +/-    0.25      10.5 +/-    0.25  0.050 / 0.080
G22     183.7          27.0               10.1 +/-    1.57      18.8 +/-    1.57  0.090 / 0.130
G23     342.0          70.5                8.8 +/-    0.38       9.2 +/-    0.38  0.080 / 0.160
G26     47.4           37.0                7.8 +/-    0.95      11.9 +/-    0.95  0.040 / 0.030
G27     126.3          19.0               12.2 +/-    1.43      27.4 +/-    1.43  0.040 / 0.030