PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/17-09:12:30
G01     318.3          19.7               10.8 +/-   34.40      23.8 +/-   34.40  0.040 / 0.050
G08     258.0          12.0               11.8 +/-   37.20      31.5 +/-   37.20  0.040 / 0.060
G10     83.2           52.0               13.4 +/-   36.25      16.5 +/-   36.25  0.140 / 0.430
G11     302.0          23.3               10.7 +/-   34.60      21.8 +/-   34.60  0.110 / 0.360
G14     291.7          68.3               14.4 +/-   35.44      15.4 +/-   35.44  0.040 / 0.040
G18     303.0          41.2               13.8 +/-   37.58      19.7 +/-   37.58  0.030 / 0.040
G22     302.9          15.9                2.8 +/-    5.38       6.7 +/-    5.38  0.180 / 0.240
G31     173.3          46.5               14.2 +/-   35.91      18.7 +/-   35.91  0.180 / 0.320
G32     15.4           64.6               12.6 +/-   36.17      13.8 +/-   36.17  0.070 / 0.210