PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/26-19:13:10
G03     204.0          52.2               11.7 +/-    1.27      14.3 +/-    1.27  0.050 / 0.090
G07     260.0          17.3               11.4 +/-    1.57      26.8 +/-    1.57  0.050 / 0.080
G09     311.9          30.3                9.7 +/-    1.36      16.8 +/-    1.36  0.030 / 0.040
G16     85.7           64.6               12.0 +/-    0.49      13.1 +/-    0.49  0.030 / 0.040
G22     185.6          36.5               13.9 +/-    4.18      21.4 +/-    4.18  0.130 / 0.320
G23     336.5          64.8               11.1 +/-    0.55      12.1 +/-    0.55  0.170 / 0.320
G26     50.2           39.6               10.0 +/-    0.69      14.6 +/-    0.69  0.080 / 0.270
G27     130.4          13.6               13.4 +/-    2.06      34.5 +/-    2.06  0.090 / 0.320