PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/10-20:27:50
G10     266.7          37.3               13.6 +/-    1.30      20.7 +/-    1.30  0.060 / 0.090
G13     42.6           19.8               11.4 +/-    1.47      25.2 +/-    1.47  0.080 / 0.090
G15     59.1           48.5               13.3 +/-    0.46      17.1 +/-    0.46  0.170 / 0.330
G16     283.7          11.1               12.8 +/-    2.47      34.9 +/-    2.47  0.160 / 0.380
G18     301.7          64.7               12.2 +/-    0.48      13.4 +/-    0.48  0.140 / 0.240
G20     54.3           35.1               11.5 +/-    0.81      18.2 +/-    0.81  0.150 / 0.220
G21     9.5            72.8               14.6 +/-    0.84      15.2 +/-    0.84  0.040 / 0.040
G24     121.6          13.8               15.0 +/-    2.57      38.5 +/-    2.57  0.040 / 0.050
G27     317.9          20.1               12.7 +/-    1.60      27.9 +/-    1.60  0.160 / 0.680
G29     165.8          26.4               14.2 +/-    0.78      26.9 +/-    0.78  0.220 / 0.530