PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/14-09:28:10
G07     305.6          45.8               -5.6 +/-   14.54      -7.4 +/-   14.54  0.080 / 0.190
G08     126.7          40.2               -2.4 +/-   11.45      -3.5 +/-   11.45  0.090 / 0.250
G09     303.1          80.7               -8.0 +/-   13.14      -8.1 +/-   13.14  0.050 / 0.070
G16     42.0           22.7               -4.5 +/-   12.83      -9.3 +/-   12.83  0.060 / 0.080
G23     143.3          65.5               -6.4 +/-   14.01      -6.9 +/-   14.01  0.040 / 0.070
G27     81.3           37.3                1.9 +/-    2.22       3.0 +/-    2.22  0.040 / 0.070
G28     223.4          11.2               -3.9 +/-   17.09     -10.5 +/-   17.09  0.090 / 0.200
G30     284.2          20.0               -1.3 +/-   12.50      -2.9 +/-   12.50  0.090 / 0.180