PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/17-23:12:40
G05     51.3           11.0                7.0 +/-    2.58      19.1 +/-    2.58  0.040 / 0.060
G10     240.7          19.1               11.6 +/-    3.21      26.0 +/-    3.21  0.050 / 0.070
G13     66.0           34.1                9.1 +/-    0.80      14.8 +/-    0.80  0.080 / 0.260
G15     111.1          56.1                9.6 +/-    0.77      11.3 +/-    0.77  0.120 / 0.250
G16     308.5          14.1                6.4 +/-    4.24      16.3 +/-    4.24  0.070 / 0.110
G20     255.1          41.9               10.8 +/-    2.57      15.2 +/-    2.57  0.080 / 0.120
G21     320.0          51.0                9.5 +/-    0.58      11.9 +/-    0.58  0.040 / 0.030
G26     280.8          19.1                8.1 +/-    0.77      18.2 +/-    0.77  0.030 / 0.030
G29     157.6          63.5                9.6 +/-    0.57      10.6 +/-    0.57  0.110 / 0.210