PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/05-18:42:40
G02     206.0          40.5               15.6 +/-    0.99      22.6 +/-    0.99  0.110 / 0.250
G03     51.3           8.6                10.3 +/-    1.90      29.6 +/-    1.90  0.080 / 0.230
G06     137.1          76.2               14.0 +/-    0.66      14.4 +/-    0.66  0.070 / 0.070
G12     311.9          23.1               11.8 +/-    1.51      24.1 +/-    1.51  0.070 / 0.070
G17     41.6           44.9               11.9 +/-    1.55      16.1 +/-    1.55  0.030 / 0.030
G19     9.0            62.5               12.2 +/-    0.61      13.6 +/-    0.61  0.030 / 0.030
G24     288.8          41.4               16.6 +/-    5.18      23.7 +/-    5.18  0.040 / 0.040
G28     108.7          26.7               13.4 +/-    1.35      25.3 +/-    1.35  0.040 / 0.030