PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/25-20:28:00
G08     268.5          18.7               11.8 +/-    2.26      26.7 +/-    2.26  0.210 / 0.190
G10     57.0           59.6                9.2 +/-    0.81      10.5 +/-    0.81  0.190 / 0.200
G11     312.6          16.1                9.1 +/-    2.86      21.9 +/-    2.86  0.110 / 0.320
G14     264.3          65.7               11.4 +/-    1.09      12.4 +/-    1.09  0.190 / 0.300
G18     91.0           36.2               10.3 +/-    1.05      16.0 +/-    1.05  0.090 / 0.120
G21     152.9          12.8               11.7 +/-    1.34      30.6 +/-    1.34  0.090 / 0.120
G24     40.9           12.4                7.9 +/-    2.57      20.8 +/-    2.57  0.080 / 0.110
G27     231.8          16.5               11.7 +/-    2.51      27.9 +/-    2.51  0.250 / 0.180
G31     180.6          26.5               11.7 +/-    0.92      22.2 +/-    0.92  0.040 / 0.020
G32     326.3          74.8               10.2 +/-    0.35      10.6 +/-    0.35  0.030 / 0.020