PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/14-14:13:10
G02     246.6          75.5                6.6 +/-    0.49       6.8 +/-    0.49  0.160 / 0.270
G05     172.4          16.6                7.5 +/-    2.19      18.0 +/-    2.19  0.240 / 0.290
G06     40.0           55.1                6.5 +/-    0.65       7.8 +/-    0.65  0.080 / 0.120
G12     321.4          54.7                5.5 +/-    1.28       6.6 +/-    1.28  0.080 / 0.120
G17     71.1           22.8                5.0 +/-    1.48      10.3 +/-    1.48  0.060 / 0.120
G19     60.0           35.5                5.4 +/-    0.75       8.5 +/-    0.75  0.070 / 0.110
G24     244.4          33.4                8.3 +/-    1.60      13.6 +/-    1.60  0.040 / 0.050
G25     316.5          13.1                5.4 +/-    1.66      14.2 +/-    1.66  0.040 / 0.050