PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/27-20:43:00
G10     250.5          25.7               18.4 +/-    2.58      35.3 +/-    2.58  0.120 / 0.310
G13     54.8           31.4               16.9 +/-    1.11      28.7 +/-    1.11  0.130 / 0.280
G15     86.7           57.4               17.2 +/-    1.17      20.1 +/-    1.17  0.050 / 0.040
G16     299.6          13.9               13.2 +/-    1.21      33.8 +/-    1.21  0.040 / 0.050
G18     269.3          56.2               18.3 +/-    1.10      21.6 +/-    1.10  0.090 / 0.360
G20     42.6           48.6               16.2 +/-    0.56      20.8 +/-    0.56  0.090 / 0.260
G21     335.8          61.4               16.5 +/-    0.58      18.5 +/-    0.58  0.050 / 0.150
G26     272.0          15.2               17.1 +/-    2.14      42.2 +/-    2.14  0.060 / 0.130
G29     162.7          45.4               19.4 +/-    1.67      26.0 +/-    1.67  0.050 / 0.060