PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/24-03:58:00
G01     241.4          29.8                5.5 +/-    2.57       9.7 +/-    2.57  0.090 / 0.140
G03     313.1          50.1                0.5 +/-   40.20       0.6 +/-   40.20  0.110 / 0.110
G14     70.4           34.1                0.6 +/-    3.33       0.9 +/-    3.33  0.030 / 0.040
G16     161.6          25.0                3.4 +/-    7.99       6.7 +/-    7.99  0.040 / 0.040
G22     287.9          72.6                1.8 +/-   39.65       1.9 +/-   39.65  0.070 / 0.100
G23     292.6          23.5                3.8 +/-    4.67       7.8 +/-    4.67  0.090 / 0.110
G26     131.9          44.1                5.8 +/-    2.78       8.0 +/-    2.78  0.030 / 0.040
G31     39.5           52.2               -1.5 +/-   40.97      -1.8 +/-   40.97  0.030 / 0.040
G32     83.6           19.9                2.9 +/-    2.47       6.3 +/-    2.47  0.070 / 0.210