PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/13-21:42:30
G01     319.1          17.3                6.9 +/-    1.40      16.1 +/-    1.40  0.120 / 0.230
G08     257.4          13.5                9.7 +/-    1.35      25.0 +/-    1.35  0.100 / 0.230
G10     77.9           54.3                7.5 +/-    0.91       9.0 +/-    0.91  0.060 / 0.070
G11     303.6          23.1                6.7 +/-    1.19      13.7 +/-    1.19  0.050 / 0.070
G14     296.9          70.9                8.6 +/-    0.60       9.1 +/-    0.60  0.050 / 0.050
G18     101.6          28.6                8.9 +/-    0.64      16.1 +/-    0.64  0.050 / 0.050
G31     179.1          38.3               11.2 +/-    1.52      16.8 +/-    1.52  0.030 / 0.030
G32     0.7            69.0                8.7 +/-    0.77       9.3 +/-    0.77  0.020 / 0.040