PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/31-14:58:00
G01     244.9          31.9               10.0 +/-    1.27      16.9 +/-    1.27  0.040 / 0.110
G03     313.5          53.4                6.7 +/-    1.61       8.1 +/-    1.61  0.050 / 0.140
G14     64.3           39.7                7.6 +/-    0.58      11.1 +/-    0.58  0.030 / 0.040
G16     159.6          24.3               -2.6 +/-   21.81      -5.2 +/-   21.81  0.030 / 0.040
G18     217.6          23.3               12.1 +/-    1.40      24.7 +/-    1.40  0.080 / 0.210
G22     287.3          74.6                7.8 +/-    0.78       8.1 +/-    0.78  0.070 / 0.210
G23     292.6          25.8                8.3 +/-    1.31      15.9 +/-    1.31  0.020 / 0.050
G26     128.3          43.2               11.6 +/-    1.03      16.1 +/-    1.03  0.030 / 0.050
G31     40.7           50.7                5.6 +/-    0.69       7.0 +/-    0.69  0.060 / 0.070
G32     82.9           18.1                7.4 +/-    0.96      17.1 +/-    0.96  0.050 / 0.070