PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/16-00:12:50
G10     260.7          35.5               11.0 +/-    1.78      17.3 +/-    1.78  0.040 / 0.040
G13     44.9           21.9                6.9 +/-    1.79      14.6 +/-    1.79  0.040 / 0.050
G15     66.5           52.7                6.9 +/-    0.37       8.5 +/-    0.37  0.160 / 0.080
G16     285.9          14.1                7.1 +/-    1.07      18.0 +/-    1.07  0.100 / 0.100
G20     286.0          56.8                8.3 +/-    1.78       9.7 +/-    1.78  0.040 / 0.040
G21     349.0          67.1                8.1 +/-    0.52       8.7 +/-    0.52  0.050 / 0.040
G24     126.3          10.4               -0.7 +/-   36.85      -2.0 +/-   36.85  0.180 / 0.210
G26     258.9          10.9                9.4 +/-    2.28      25.8 +/-    2.28  0.140 / 0.230
G27     321.4          13.1                6.0 +/-    2.16      15.5 +/-    2.16  0.200 / 0.300
G29     165.7          37.3                8.9 +/-    0.83      13.6 +/-    0.83  0.170 / 0.290