PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/14-18:28:10
G02     249.6          76.8               10.1 +/-    0.49      10.4 +/-    0.49  0.110 / 0.310
G05     170.6          18.4               11.8 +/-    2.55      26.9 +/-    2.55  0.100 / 0.290
G06     39.8           55.5                9.9 +/-    0.35      11.7 +/-    0.35  0.030 / 0.030
G12     320.9          53.0                9.4 +/-    0.88      11.4 +/-    0.88  0.030 / 0.030
G17     71.4           22.9                8.7 +/-    1.67      17.8 +/-    1.67  0.080 / 0.130
G19     60.3           35.7                7.9 +/-    1.28      12.3 +/-    1.28  0.120 / 0.140
G24     242.9          33.1               10.2 +/-    1.51      16.9 +/-    1.51  0.060 / 0.120
G25     316.7          13.7                8.0 +/-    2.43      20.5 +/-    2.43  0.070 / 0.130