PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/15-01:43:10
G10     273.9          42.0               11.6 +/-    1.47      16.3 +/-    1.47  0.100 / 0.170
G13     39.4           13.4                7.1 +/-    1.14      18.4 +/-    1.14  0.080 / 0.130
G15     54.7           45.9                9.3 +/-    0.63      12.4 +/-    0.63  0.110 / 0.270
G20     289.8          52.8               15.2 +/-    1.39      18.6 +/-    1.39  0.110 / 0.310
G21     17.4           75.0               12.8 +/-    0.58      13.2 +/-    0.58  0.040 / 0.050
G24     114.0          17.8               10.2 +/-    1.09      23.7 +/-    1.09  0.040 / 0.040
G27     315.5          23.5                8.2 +/-    1.84      16.7 +/-    1.84  0.050 / 0.100
G29     168.9          25.7               12.4 +/-    1.48      23.9 +/-    1.48  0.090 / 0.070
G32     204.8          16.4               18.6 +/-    4.08      44.6 +/-    4.08  0.040 / 0.140