PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/06-19:57:40
G01     320.4          13.2                8.0 +/-    1.81      20.9 +/-    1.81  0.140 / 0.460
G08     262.4          15.8               10.4 +/-    2.31      25.5 +/-    2.31  0.180 / 0.450
G10     69.7           56.7                8.3 +/-    0.60       9.7 +/-    0.60  0.050 / 0.070
G11     308.1          20.0                7.6 +/-    1.09      16.8 +/-    1.09  0.050 / 0.080
G14     280.9          69.0                9.7 +/-    0.42      10.3 +/-    0.42  0.050 / 0.040
G18     97.5           31.5                7.3 +/-    1.36      12.3 +/-    1.36  0.060 / 0.040
G27     226.9          12.0                9.1 +/-    2.68      24.2 +/-    2.68  0.150 / 0.260
G31     179.0          34.0               11.2 +/-    0.90      18.1 +/-    0.90  0.130 / 0.270
G32     350.6          71.7                9.2 +/-    0.82       9.7 +/-    0.82  0.030 / 0.020