PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/11-00:57:30
G10     246.7          23.4               14.1 +/-    2.18      28.5 +/-    2.18  0.150 / 0.650
G13     58.1           32.3               10.9 +/-    0.73      18.2 +/-    0.73  0.140 / 0.630
G15     99.9           58.5               12.9 +/-    0.48      14.9 +/-    0.48  0.040 / 0.060
G16     299.0          15.9                8.5 +/-    2.97      20.8 +/-    2.97  0.050 / 0.050
G20     257.9          37.0               12.1 +/-    0.50      18.5 +/-    0.50  0.140 / 0.180
G21     327.2          56.3               10.8 +/-    0.92      12.7 +/-    0.92  0.070 / 0.170
G26     270.8          17.5               11.7 +/-    2.97      27.4 +/-    2.97  0.030 / 0.050
G29     163.9          56.4               13.3 +/-    0.68      15.7 +/-    0.68  0.030 / 0.050