PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/12-21:27:50
G05     52.8           11.5               11.3 +/-    3.14      30.5 +/-    3.14  0.040 / 0.050
G10     244.6          20.5               16.2 +/-    1.58      35.3 +/-    1.58  0.040 / 0.060
G13     62.6           34.9               11.6 +/-    1.44      18.4 +/-    1.44  0.130 / 0.240
G15     102.9          57.4               14.4 +/-    0.74      16.7 +/-    0.74  0.160 / 0.260
G16     306.0          13.6               11.2 +/-    2.49      28.9 +/-    2.49  0.110 / 0.370
G18     258.8          51.0               13.8 +/-    1.19      17.2 +/-    1.19  0.120 / 0.460
G20     37.8           54.7               12.7 +/-    0.91      15.2 +/-    0.91  0.100 / 0.280
G21     326.1          56.0               12.3 +/-    1.20      14.5 +/-    1.20  0.120 / 0.250
G26     278.5          17.6               12.2 +/-    1.49      28.6 +/-    1.49  0.050 / 0.060
G29     160.5          54.3               15.3 +/-    0.71      18.4 +/-    0.71  0.060 / 0.060