PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/12-23:27:30
G05     50.4           12.9                7.2 +/-    2.14      18.9 +/-    2.14  0.160 / 0.250
G10     239.0          17.3               12.2 +/-    2.14      28.6 +/-    2.14  0.080 / 0.200
G13     69.0           34.7                8.9 +/-    1.72      14.2 +/-    1.72  0.070 / 0.070
G15     115.5          55.0               11.5 +/-    0.66      13.7 +/-    0.66  0.060 / 0.060
G16     310.8          13.4                6.4 +/-    1.87      16.7 +/-    1.87  0.110 / 0.130
G20     252.6          40.1               11.6 +/-    1.58      16.9 +/-    1.58  0.070 / 0.130
G21     317.6          49.5                8.9 +/-    0.82      11.3 +/-    0.82  0.030 / 0.050
G26     283.4          19.5                7.8 +/-    0.74      17.4 +/-    0.74  0.030 / 0.040
G29     156.0          66.2               11.5 +/-    0.41      12.4 +/-    0.41  0.110 / 0.170