PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/09-16:58:00
G01     293.8          39.3               10.3 +/-    4.85      15.2 +/-    4.85  0.070 / 0.070
G03     311.6          17.6                8.2 +/-    1.56      19.1 +/-    1.56  0.040 / 0.100
G10     117.9          30.9                8.1 +/-    0.67      13.9 +/-    0.67  0.020 / 0.020
G11     270.4          26.2                7.3 +/-    0.96      13.9 +/-    0.96  0.030 / 0.020
G14     18.4           60.8                7.0 +/-    1.14       7.9 +/-    1.14  0.050 / 0.040
G22     313.6          37.5                6.5 +/-    1.29       9.9 +/-    1.29  0.040 / 0.040
G25     69.7           19.0                7.5 +/-    1.53      16.8 +/-    1.53  0.080 / 0.140
G26     157.6          11.7                7.7 +/-    4.50      20.8 +/-    4.50  0.080 / 0.130
G31     137.6          77.7                9.1 +/-    0.75       9.3 +/-    0.75  0.160 / 0.160
G32     49.4           43.1                6.7 +/-    1.23       9.3 +/-    1.23  0.220 / 0.150