PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/03-17:12:40
G07     43.3           67.8               17.8 +/-   38.28      19.0 +/-   38.28  0.050 / 0.110
G08     59.4           46.1               13.2 +/-   35.94      17.5 +/-   35.94  0.070 / 0.100
G09     180.3          47.9               18.5 +/-   36.44      23.9 +/-   36.44  0.070 / 0.200
G11     126.5          30.3               14.3 +/-   36.47      24.9 +/-   36.47  0.080 / 0.190
G18     110.2          11.8               11.6 +/-   36.16      31.2 +/-   36.16  0.050 / 0.070
G23     160.2          16.4               12.3 +/-   35.82      29.7 +/-   35.82  0.050 / 0.070
G27     39.9           16.2                6.1 +/-    2.60      14.7 +/-    2.60  0.150 / 0.270
G28     258.8          43.2               15.7 +/-   38.03      21.7 +/-   38.03  0.120 / 0.280
G30     324.9          54.7               16.2 +/-   37.45      19.3 +/-   37.45  0.020 / 0.050