PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/09-17:13:10
G10     295.3          50.7                6.5 +/-    2.44       8.2 +/-    2.44  0.090 / 0.070
G14     210.1          11.3               -4.2 +/-   20.45     -11.5 +/-   20.45  0.060 / 0.090
G15     46.0           27.8                5.7 +/-    1.42      10.4 +/-    1.42  0.080 / 0.110
G18     0.6            65.9                7.2 +/-    0.34       7.8 +/-    0.34  0.070 / 0.100
G20     69.9           20.7                7.5 +/-    3.76      16.1 +/-    3.76  0.070 / 0.190
G21     102.5          69.7                8.9 +/-    0.78       9.5 +/-    0.78  0.080 / 0.190
G24     99.9           26.2                8.0 +/-    1.00      15.3 +/-    1.00  0.090 / 0.150
G27     300.1          34.6                6.4 +/-    2.19      10.2 +/-    2.19  0.090 / 0.130
G32     210.7          30.1                9.5 +/-    1.76      16.7 +/-    1.76  0.030 / 0.030