PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/25-22:43:00
G10     269.3          39.6               22.8 +/-    1.27      33.3 +/-    1.27  0.120 / 0.250
G13     40.9           16.5               15.1 +/-    1.80      36.2 +/-    1.80  0.150 / 0.320
G15     59.7           50.7               18.3 +/-    0.76      22.9 +/-    0.76  0.040 / 0.030
G16     275.3          11.7               22.0 +/-    6.96      59.3 +/-    6.96  0.040 / 0.040
G20     268.7          28.8               11.7 +/-    0.97      21.1 +/-    0.97  0.170 / 0.240
G21     4.4            72.6               20.3 +/-    1.38      21.1 +/-    1.38  0.160 / 0.220
G24     116.9          15.6               20.0 +/-    1.39      49.1 +/-    1.39  0.230 / 0.440
G27     317.9          20.1               16.6 +/-    2.34      36.5 +/-    2.34  0.240 / 0.320
G29     168.6          30.2               21.3 +/-    1.92      37.0 +/-    1.92  0.130 / 0.250
G32     204.1          12.6               28.4 +/-    3.97      74.8 +/-    3.97  0.110 / 0.290