PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/24-15:42:50
G07     326.4          55.4               12.4 +/-    1.01      14.8 +/-    1.01  0.040 / 0.050
G08     109.2          50.8               13.1 +/-    0.60      16.4 +/-    0.60  0.040 / 0.050
G09     199.6          77.7               12.7 +/-    1.11      13.0 +/-    1.11  0.060 / 0.060
G11     149.0          10.5                1.5 +/-   27.66       4.2 +/-   27.66  0.060 / 0.050
G23     152.7          42.0               13.1 +/-    1.92      18.4 +/-    1.92  0.060 / 0.140
G27     59.0           33.5               10.6 +/-    0.76      17.2 +/-    0.76  0.060 / 0.120
G28     234.3          26.4               14.6 +/-    1.06      27.6 +/-    1.06  0.260 / 0.440
G30     299.0          32.9               11.0 +/-    0.75      18.1 +/-    0.75  0.160 / 0.580