PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/29-16:57:30
G01     312.9          27.8                5.4 +/-    1.61      10.0 +/-    1.61  0.120 / 0.190
G10     97.2           45.9                7.8 +/-    0.79      10.4 +/-    0.79  0.120 / 0.260
G11     292.5          26.3                8.7 +/-    1.46      16.5 +/-    1.46  0.040 / 0.040
G14     334.1          69.9                7.0 +/-    0.70       7.4 +/-    0.70  0.040 / 0.040
G22     306.8          20.4                5.0 +/-    2.03      10.9 +/-    2.03  0.080 / 0.120
G25     90.2           14.0                9.1 +/-    2.15      23.2 +/-    2.15  0.090 / 0.120
G31     171.9          56.5                9.6 +/-    0.68      11.2 +/-    0.68  0.170 / 0.260
G32     27.6           57.9                6.8 +/-    0.84       7.9 +/-    0.84  0.150 / 0.290