PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/22-15:12:50
G01     314.8          25.5                5.7 +/-    2.82      11.1 +/-    2.82  0.150 / 0.290
G10     93.3           47.8                5.7 +/-    0.60       7.3 +/-    0.60  0.140 / 0.340
G11     296.5          24.9                7.7 +/-    2.22      15.1 +/-    2.22  0.030 / 0.040
G14     322.6          70.4                6.2 +/-    0.54       6.5 +/-    0.54  0.040 / 0.040
G22     305.7          19.0                6.6 +/-    2.02      14.9 +/-    2.02  0.050 / 0.050
G25     93.3           12.8                7.8 +/-    1.41      20.5 +/-    1.41  0.040 / 0.060
G31     172.3          53.6                7.7 +/-    1.78       9.3 +/-    1.78  0.130 / 0.160
G32     24.4           59.8                5.3 +/-    0.61       6.1 +/-    0.61  0.100 / 0.190