PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/11-19:28:10
G05     52.0           10.9               10.4 +/-    1.91      28.6 +/-    1.91  0.050 / 0.070
G10     242.4          21.1               16.9 +/-    3.14      36.3 +/-    3.14  0.050 / 0.050
G13     63.2           33.3               12.6 +/-    0.98      20.7 +/-    0.98  0.070 / 0.120
G15     108.6          57.1               15.4 +/-    0.81      18.0 +/-    0.81  0.080 / 0.120
G16     305.2          15.2               10.7 +/-    1.66      26.6 +/-    1.66  0.040 / 0.040
G20     258.4          44.8               14.8 +/-    3.33      20.0 +/-    3.33  0.030 / 0.040
G21     322.2          52.4               14.0 +/-    0.45      17.2 +/-    0.45  0.090 / 0.180
G26     277.9          18.7               12.6 +/-    1.48      28.7 +/-    1.48  0.090 / 0.200
G29     159.6          62.2               15.9 +/-    0.56      17.7 +/-    0.56  0.090 / 0.380