PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/05-16:57:40
G07     34.3           67.9                9.0 +/-    0.59       9.6 +/-    0.59  0.070 / 0.100
G08     63.3           47.9                8.8 +/-    0.36      11.4 +/-    0.36  0.060 / 0.100
G09     180.9          51.3               11.5 +/-    1.81      14.2 +/-    1.81  0.080 / 0.190
G11     129.2          28.3               12.9 +/-    1.19      23.5 +/-    1.19  0.080 / 0.210
G18     112.8          10.2               -8.5 +/-   24.66     -23.5 +/-   24.66  0.030 / 0.040
G23     159.9          19.3               11.3 +/-    1.50      25.2 +/-    1.50  0.030 / 0.040
G27     41.2           18.6                7.4 +/-    0.71      16.9 +/-    0.71  0.080 / 0.160
G28     255.3          41.1               10.3 +/-    0.92      14.8 +/-    0.92  0.080 / 0.140
G30     321.9          52.4               11.0 +/-    0.84      13.5 +/-    0.84  0.090 / 0.280