PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/02-21:57:40
G10     298.9          51.9               16.4 +/-    1.12      20.2 +/-    1.12  0.060 / 0.120
G14     210.5          14.7               23.1 +/-    2.62      57.9 +/-    2.62  0.050 / 0.120
G15     45.9           26.8               14.8 +/-    1.73      27.7 +/-    1.73  0.070 / 0.130
G18     2.6            65.7               16.7 +/-    0.33      18.2 +/-    0.33  0.070 / 0.130
G20     72.6           17.0               15.8 +/-    0.95      37.3 +/-    0.95  0.030 / 0.040
G21     104.2          71.2               19.1 +/-    0.94      20.0 +/-    0.94  0.030 / 0.040
G24     97.3           27.2               20.9 +/-    0.75      39.0 +/-    0.75  0.200 / 0.690
G27     296.9          35.8               16.7 +/-    1.22      26.1 +/-    1.22  0.210 / 0.520
G32     212.2          30.4               20.2 +/-    3.38      35.1 +/-    3.38  0.120 / 0.320