PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/24-19:28:00
G01     244.8          31.8               13.8 +/-    1.50      23.3 +/-    1.50  0.040 / 0.050
G03     313.9          51.3               10.3 +/-    1.44      12.8 +/-    1.44  0.040 / 0.050
G14     65.9           37.9                9.6 +/-    0.45      14.4 +/-    0.45  0.060 / 0.190
G16     161.6          22.9               15.0 +/-    1.63      30.8 +/-    1.63  0.070 / 0.180
G22     293.6          71.5               12.6 +/-    1.03      13.2 +/-    1.03  0.030 / 0.050
G23     291.3          23.4               12.0 +/-    1.28      24.3 +/-    1.28  0.030 / 0.050
G26     130.7          42.7               13.9 +/-    0.79      19.3 +/-    0.79  0.080 / 0.210
G31     40.2           52.7                9.4 +/-    0.56      11.4 +/-    0.56  0.070 / 0.220
G32     82.4           19.1               10.7 +/-    0.62      24.1 +/-    0.62  0.100 / 0.130