PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/11-14:28:00
G01     306.9          33.3                5.0 +/-    2.05       8.3 +/-    2.05  0.080 / 0.130
G10     106.3          40.1                7.4 +/-    0.40      10.7 +/-    0.40  0.070 / 0.090
G11     284.6          27.0                7.2 +/-    1.91      13.4 +/-    1.91  0.030 / 0.040
G14     351.6          67.4                4.9 +/-    0.37       5.3 +/-    0.37  0.040 / 0.050
G22     310.4          28.5                4.2 +/-    1.21       7.6 +/-    1.21  0.040 / 0.030
G25     82.7           16.8                6.9 +/-    2.28      16.4 +/-    2.28  0.030 / 0.040
G31     163.8          66.4                8.2 +/-    0.37       8.8 +/-    0.37  0.120 / 0.110
G32     37.7           51.3                5.3 +/-    1.25       6.5 +/-    1.25  0.090 / 0.110