PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/10-20:57:40
G02     213.7          56.8               16.4 +/-    1.10      19.2 +/-    1.10  0.060 / 0.090
G06     64.9           75.8               13.8 +/-    1.14      14.2 +/-    1.14  0.060 / 0.080
G12     318.0          34.8               11.4 +/-    1.35      18.1 +/-    1.35  0.040 / 0.080
G17     53.6           35.9               11.7 +/-    1.38      18.3 +/-    1.38  0.040 / 0.090
G19     33.0           52.8               13.0 +/-    0.87      15.8 +/-    0.87  0.100 / 0.230
G24     268.8          42.3               14.4 +/-    0.87      20.2 +/-    0.87  0.090 / 0.270
G28     120.6          15.9               12.5 +/-    1.99      30.5 +/-    1.99  0.040 / 0.050