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               10.4 +/-    2.62      28.0 +/-    2.62  0.140 / 0.210
G10     244.6          20.5               15.7 +/-    2.41      34.2 +/-    2.41  0.190 / 0.240
G13     62.6           34.9               14.2 +/-    0.82      22.5 +/-    0.82  0.170 / 0.240
G15     102.9          57.4               14.7 +/-    0.45      17.1 +/-    0.45  0.180 / 0.270
G16     306.0          13.6               10.6 +/-    1.38      27.3 +/-    1.38  0.050 / 0.040
G18     258.8          51.0               14.4 +/-    2.10      18.0 +/-    2.10  0.030 / 0.050
G20     37.8           54.7               13.0 +/-    0.75      15.5 +/-    0.75  0.080 / 0.120
G21     326.1          56.0               13.0 +/-    0.58      15.3 +/-    0.58  0.340 / 0.170
G26     278.5          17.6               14.1 +/-    0.80      32.9 +/-    0.80  0.040 / 0.040
G29     160.5          54.3               14.9 +/-    0.62      17.9 +/-    0.62  0.050 / 0.060