PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/25-20:13:00
G10     291.9          49.5               14.3 +/-    0.91      18.1 +/-    0.91  0.040 / 0.040
G14     209.4          9.9                -8.6 +/-   19.03     -23.9 +/-   19.03  0.040 / 0.060
G15     46.6           30.6               12.7 +/-    0.80      22.0 +/-    0.80  0.050 / 0.100
G18     352.8          66.5               13.4 +/-    0.58      14.5 +/-    0.58  0.060 / 0.090
G20     68.9           20.8               12.6 +/-    2.25      27.1 +/-    2.25  0.080 / 0.270
G21     91.8           73.4               15.8 +/-    0.54      16.4 +/-    0.54  0.080 / 0.270
G24     102.5          25.2               15.9 +/-    1.33      30.9 +/-    1.33  0.060 / 0.110
G27     302.3          33.7               13.4 +/-    1.15      21.9 +/-    1.15  0.070 / 0.130
G32     210.1          26.4               18.8 +/-    1.18      35.5 +/-    1.18  0.320 / 0.650