PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/05-20:28:00
G02     306.5          80.9               14.5 +/-    0.48      14.7 +/-    0.48  0.060 / 0.110
G05     166.4          28.5               19.1 +/-    1.68      34.6 +/-    1.68  0.060 / 0.090
G06     40.9           43.7               13.7 +/-    1.00      18.7 +/-    1.00  0.130 / 0.260
G12     317.4          68.7               13.3 +/-    0.58      14.2 +/-    0.58  0.130 / 0.180
G17     81.5           15.1               13.0 +/-    1.82      32.3 +/-    1.82  0.030 / 0.050
G19     68.4           32.7               13.4 +/-    1.88      22.2 +/-    1.88  0.030 / 0.020
G24     231.6          26.2               18.0 +/-    2.76      34.2 +/-    2.76  0.040 / 0.040
G25     317.7          24.0               14.3 +/-    1.35      28.5 +/-    1.35  0.050 / 0.040