PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/26-19:27:30
G05     52.2           11.7                9.8 +/-    2.39      26.5 +/-    2.39  0.060 / 0.050
G10     243.1          20.2               14.1 +/-    3.03      30.9 +/-    3.03  0.030 / 0.060
G13     63.0           33.9               12.3 +/-    1.09      20.0 +/-    1.09  0.100 / 0.360
G15     115.4          57.8               14.3 +/-    0.62      16.6 +/-    0.62  0.090 / 0.320
G16     304.4          15.2                8.3 +/-    2.28      20.6 +/-    2.28  0.080 / 0.130
G20     258.3          44.4               13.5 +/-    3.47      18.4 +/-    3.47  0.470 / 0.200
G21     323.6          53.9               12.5 +/-    0.56      15.1 +/-    0.56  0.090 / 0.090
G26     277.0          18.6               10.6 +/-    0.97      24.2 +/-    0.97  0.070 / 0.110
G29     161.4          61.2               15.0 +/-    0.38      16.9 +/-    0.38  0.040 / 0.040